mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
targets/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_emu.c@189:f392fc9709a3, 2019-02-20 (annotated)
- Committer:
- AnnaBridge
- Date:
- Wed Feb 20 22:31:08 2019 +0000
- Revision:
- 189:f392fc9709a3
- Parent:
- 179:b0033dcd6934
mbed library release version 165
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 144:ef7eb2e8f9f7 | 1 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2 | * @file em_emu.c |
<> | 144:ef7eb2e8f9f7 | 3 | * @brief Energy Management Unit (EMU) Peripheral API |
AnnaBridge | 179:b0033dcd6934 | 4 | * @version 5.3.3 |
<> | 144:ef7eb2e8f9f7 | 5 | ******************************************************************************* |
AnnaBridge | 179:b0033dcd6934 | 6 | * # License |
<> | 150:02e0a0aed4ec | 7 | * <b>Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com</b> |
<> | 144:ef7eb2e8f9f7 | 8 | ******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 9 | * |
<> | 144:ef7eb2e8f9f7 | 10 | * Permission is granted to anyone to use this software for any purpose, |
<> | 144:ef7eb2e8f9f7 | 11 | * including commercial applications, and to alter it and redistribute it |
<> | 144:ef7eb2e8f9f7 | 12 | * freely, subject to the following restrictions: |
<> | 144:ef7eb2e8f9f7 | 13 | * |
<> | 144:ef7eb2e8f9f7 | 14 | * 1. The origin of this software must not be misrepresented; you must not |
<> | 144:ef7eb2e8f9f7 | 15 | * claim that you wrote the original software. |
<> | 144:ef7eb2e8f9f7 | 16 | * 2. Altered source versions must be plainly marked as such, and must not be |
<> | 144:ef7eb2e8f9f7 | 17 | * misrepresented as being the original software. |
<> | 144:ef7eb2e8f9f7 | 18 | * 3. This notice may not be removed or altered from any source distribution. |
<> | 144:ef7eb2e8f9f7 | 19 | * |
<> | 144:ef7eb2e8f9f7 | 20 | * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no |
<> | 144:ef7eb2e8f9f7 | 21 | * obligation to support this Software. Silicon Labs is providing the |
<> | 144:ef7eb2e8f9f7 | 22 | * Software "AS IS", with no express or implied warranties of any kind, |
<> | 144:ef7eb2e8f9f7 | 23 | * including, but not limited to, any implied warranties of merchantability |
<> | 144:ef7eb2e8f9f7 | 24 | * or fitness for any particular purpose or warranties against infringement |
<> | 144:ef7eb2e8f9f7 | 25 | * of any proprietary rights of a third party. |
<> | 144:ef7eb2e8f9f7 | 26 | * |
<> | 144:ef7eb2e8f9f7 | 27 | * Silicon Labs will not be liable for any consequential, incidental, or |
<> | 144:ef7eb2e8f9f7 | 28 | * special damages, or any other relief, or for any claim by any third party, |
<> | 144:ef7eb2e8f9f7 | 29 | * arising from your use of this Software. |
<> | 144:ef7eb2e8f9f7 | 30 | * |
<> | 144:ef7eb2e8f9f7 | 31 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 32 | |
<> | 144:ef7eb2e8f9f7 | 33 | #include <limits.h> |
<> | 144:ef7eb2e8f9f7 | 34 | |
<> | 144:ef7eb2e8f9f7 | 35 | #include "em_emu.h" |
AnnaBridge | 179:b0033dcd6934 | 36 | #if defined(EMU_PRESENT) && (EMU_COUNT > 0) |
<> | 144:ef7eb2e8f9f7 | 37 | |
AnnaBridge | 179:b0033dcd6934 | 38 | #include "em_assert.h" |
<> | 144:ef7eb2e8f9f7 | 39 | #include "em_cmu.h" |
AnnaBridge | 179:b0033dcd6934 | 40 | #include "em_common.h" |
<> | 144:ef7eb2e8f9f7 | 41 | #include "em_system.h" |
<> | 144:ef7eb2e8f9f7 | 42 | |
<> | 144:ef7eb2e8f9f7 | 43 | /***************************************************************************//** |
<> | 150:02e0a0aed4ec | 44 | * @addtogroup emlib |
<> | 144:ef7eb2e8f9f7 | 45 | * @{ |
<> | 144:ef7eb2e8f9f7 | 46 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 47 | |
<> | 144:ef7eb2e8f9f7 | 48 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 49 | * @addtogroup EMU |
<> | 144:ef7eb2e8f9f7 | 50 | * @brief Energy Management Unit (EMU) Peripheral API |
<> | 150:02e0a0aed4ec | 51 | * @details |
<> | 150:02e0a0aed4ec | 52 | * This module contains functions to control the EMU peripheral of Silicon |
<> | 150:02e0a0aed4ec | 53 | * Labs 32-bit MCUs and SoCs. The EMU handles the different low energy modes |
<> | 150:02e0a0aed4ec | 54 | * in Silicon Labs microcontrollers. |
<> | 144:ef7eb2e8f9f7 | 55 | * @{ |
<> | 144:ef7eb2e8f9f7 | 56 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 57 | |
<> | 144:ef7eb2e8f9f7 | 58 | /* Consistency check, since restoring assumes similar bitpositions in */ |
<> | 144:ef7eb2e8f9f7 | 59 | /* CMU OSCENCMD and STATUS regs */ |
<> | 144:ef7eb2e8f9f7 | 60 | #if (CMU_STATUS_AUXHFRCOENS != CMU_OSCENCMD_AUXHFRCOEN) |
<> | 144:ef7eb2e8f9f7 | 61 | #error Conflict in AUXHFRCOENS and AUXHFRCOEN bitpositions |
<> | 144:ef7eb2e8f9f7 | 62 | #endif |
<> | 144:ef7eb2e8f9f7 | 63 | #if (CMU_STATUS_HFXOENS != CMU_OSCENCMD_HFXOEN) |
<> | 144:ef7eb2e8f9f7 | 64 | #error Conflict in HFXOENS and HFXOEN bitpositions |
<> | 144:ef7eb2e8f9f7 | 65 | #endif |
<> | 144:ef7eb2e8f9f7 | 66 | #if (CMU_STATUS_LFRCOENS != CMU_OSCENCMD_LFRCOEN) |
<> | 144:ef7eb2e8f9f7 | 67 | #error Conflict in LFRCOENS and LFRCOEN bitpositions |
<> | 144:ef7eb2e8f9f7 | 68 | #endif |
<> | 144:ef7eb2e8f9f7 | 69 | #if (CMU_STATUS_LFXOENS != CMU_OSCENCMD_LFXOEN) |
<> | 144:ef7eb2e8f9f7 | 70 | #error Conflict in LFXOENS and LFXOEN bitpositions |
<> | 144:ef7eb2e8f9f7 | 71 | #endif |
<> | 144:ef7eb2e8f9f7 | 72 | |
<> | 144:ef7eb2e8f9f7 | 73 | /** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */ |
AnnaBridge | 179:b0033dcd6934 | 74 | #if defined(_SILICON_LABS_32B_SERIES_0) |
<> | 161:2cc1468da177 | 75 | /* Fix for errata EMU_E107 - non-WIC interrupt masks. |
<> | 161:2cc1468da177 | 76 | * Zero Gecko and future families are not affected by errata EMU_E107 */ |
AnnaBridge | 179:b0033dcd6934 | 77 | #if defined(_EFM32_GECKO_FAMILY) |
AnnaBridge | 179:b0033dcd6934 | 78 | #define ERRATA_FIX_EMU_E107_ENABLE |
<> | 144:ef7eb2e8f9f7 | 79 | #define NON_WIC_INT_MASK_0 (~(0x0dfc0323U)) |
<> | 144:ef7eb2e8f9f7 | 80 | #define NON_WIC_INT_MASK_1 (~(0x0U)) |
<> | 144:ef7eb2e8f9f7 | 81 | |
AnnaBridge | 179:b0033dcd6934 | 82 | #elif defined(_EFM32_TINY_FAMILY) |
AnnaBridge | 179:b0033dcd6934 | 83 | #define ERRATA_FIX_EMU_E107_ENABLE |
<> | 144:ef7eb2e8f9f7 | 84 | #define NON_WIC_INT_MASK_0 (~(0x001be323U)) |
<> | 144:ef7eb2e8f9f7 | 85 | #define NON_WIC_INT_MASK_1 (~(0x0U)) |
<> | 144:ef7eb2e8f9f7 | 86 | |
AnnaBridge | 179:b0033dcd6934 | 87 | #elif defined(_EFM32_GIANT_FAMILY) |
AnnaBridge | 179:b0033dcd6934 | 88 | #define ERRATA_FIX_EMU_E107_ENABLE |
<> | 144:ef7eb2e8f9f7 | 89 | #define NON_WIC_INT_MASK_0 (~(0xff020e63U)) |
<> | 144:ef7eb2e8f9f7 | 90 | #define NON_WIC_INT_MASK_1 (~(0x00000046U)) |
<> | 144:ef7eb2e8f9f7 | 91 | |
AnnaBridge | 179:b0033dcd6934 | 92 | #elif defined(_EFM32_WONDER_FAMILY) |
AnnaBridge | 179:b0033dcd6934 | 93 | #define ERRATA_FIX_EMU_E107_ENABLE |
<> | 144:ef7eb2e8f9f7 | 94 | #define NON_WIC_INT_MASK_0 (~(0xff020e63U)) |
<> | 144:ef7eb2e8f9f7 | 95 | #define NON_WIC_INT_MASK_1 (~(0x00000046U)) |
<> | 144:ef7eb2e8f9f7 | 96 | |
<> | 161:2cc1468da177 | 97 | #endif |
<> | 144:ef7eb2e8f9f7 | 98 | #endif |
<> | 144:ef7eb2e8f9f7 | 99 | |
AnnaBridge | 179:b0033dcd6934 | 100 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_74) \ |
AnnaBridge | 179:b0033dcd6934 | 101 | || (defined(_SILICON_LABS_32B_SERIES_0) \ |
AnnaBridge | 179:b0033dcd6934 | 102 | && (defined(_EFM32_HAPPY_FAMILY) || defined(_EFM32_ZERO_FAMILY))) |
AnnaBridge | 179:b0033dcd6934 | 103 | // Fix for errata EMU_E110 - Potential Hard Fault when Exiting EM2. |
AnnaBridge | 179:b0033dcd6934 | 104 | #include "em_core.h" |
AnnaBridge | 179:b0033dcd6934 | 105 | #include "em_ramfunc.h" |
AnnaBridge | 179:b0033dcd6934 | 106 | #define ERRATA_FIX_EMU_E110_ENABLE |
AnnaBridge | 179:b0033dcd6934 | 107 | #endif |
AnnaBridge | 179:b0033dcd6934 | 108 | |
<> | 144:ef7eb2e8f9f7 | 109 | /* Fix for errata EMU_E108 - High Current Consumption on EM4 Entry. */ |
AnnaBridge | 179:b0033dcd6934 | 110 | #if defined(_SILICON_LABS_32B_SERIES_0) && defined(_EFM32_HAPPY_FAMILY) |
AnnaBridge | 179:b0033dcd6934 | 111 | #define ERRATA_FIX_EMU_E108_ENABLE |
<> | 144:ef7eb2e8f9f7 | 112 | #endif |
<> | 150:02e0a0aed4ec | 113 | |
<> | 150:02e0a0aed4ec | 114 | /* Fix for errata EMU_E208 - Occasional Full Reset After Exiting EM4H */ |
AnnaBridge | 179:b0033dcd6934 | 115 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) |
AnnaBridge | 179:b0033dcd6934 | 116 | #define ERRATA_FIX_EMU_E208_ENABLE |
<> | 150:02e0a0aed4ec | 117 | #endif |
<> | 150:02e0a0aed4ec | 118 | |
<> | 150:02e0a0aed4ec | 119 | /* Enable FETCNT tuning errata fix */ |
AnnaBridge | 179:b0033dcd6934 | 120 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) |
AnnaBridge | 179:b0033dcd6934 | 121 | #define ERRATA_FIX_DCDC_FETCNT_SET_ENABLE |
<> | 150:02e0a0aed4ec | 122 | #endif |
<> | 150:02e0a0aed4ec | 123 | |
<> | 150:02e0a0aed4ec | 124 | /* Enable LN handshake errata fix */ |
AnnaBridge | 179:b0033dcd6934 | 125 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) |
AnnaBridge | 179:b0033dcd6934 | 126 | #define ERRATA_FIX_DCDC_LNHS_BLOCK_ENABLE |
AnnaBridge | 179:b0033dcd6934 | 127 | typedef enum { |
<> | 161:2cc1468da177 | 128 | errataFixDcdcHsInit, |
<> | 161:2cc1468da177 | 129 | errataFixDcdcHsTrimSet, |
<> | 161:2cc1468da177 | 130 | errataFixDcdcHsBypassLn, |
<> | 161:2cc1468da177 | 131 | errataFixDcdcHsLnWaitDone |
<> | 161:2cc1468da177 | 132 | } errataFixDcdcHs_TypeDef; |
<> | 161:2cc1468da177 | 133 | static errataFixDcdcHs_TypeDef errataFixDcdcHsState = errataFixDcdcHsInit; |
<> | 150:02e0a0aed4ec | 134 | #endif |
<> | 150:02e0a0aed4ec | 135 | |
<> | 161:2cc1468da177 | 136 | /* Used to figure out if a memory address is inside or outside of a RAM block. |
<> | 161:2cc1468da177 | 137 | * A memory address is inside a RAM block if the address is greater than the |
<> | 161:2cc1468da177 | 138 | * RAM block address. */ |
<> | 161:2cc1468da177 | 139 | #define ADDRESS_NOT_IN_BLOCK(addr, block) ((addr) <= (block)) |
<> | 161:2cc1468da177 | 140 | |
<> | 161:2cc1468da177 | 141 | /* RAM Block layout for various device families. Note that some devices |
AnnaBridge | 179:b0033dcd6934 | 142 | * have special layout in RAM0 and some devices have a special RAM block |
AnnaBridge | 179:b0033dcd6934 | 143 | * at the end of their block layout. */ |
<> | 161:2cc1468da177 | 144 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_84) |
<> | 161:2cc1468da177 | 145 | #define RAM1_BLOCKS 2 |
<> | 161:2cc1468da177 | 146 | #define RAM1_BLOCK_SIZE 0x10000 // 64 kB blocks |
AnnaBridge | 179:b0033dcd6934 | 147 | #define RAM2_BLOCKS 1 |
AnnaBridge | 179:b0033dcd6934 | 148 | #define RAM2_BLOCK_SIZE 0x800 // 2 kB block |
<> | 161:2cc1468da177 | 149 | #elif defined(_SILICON_LABS_GECKO_INTERNAL_SDID_89) |
<> | 161:2cc1468da177 | 150 | #define RAM0_BLOCKS 2 |
<> | 161:2cc1468da177 | 151 | #define RAM0_BLOCK_SIZE 0x4000 |
<> | 161:2cc1468da177 | 152 | #define RAM1_BLOCKS 2 |
<> | 161:2cc1468da177 | 153 | #define RAM1_BLOCK_SIZE 0x4000 // 16 kB blocks |
AnnaBridge | 179:b0033dcd6934 | 154 | #define RAM2_BLOCKS 1 |
AnnaBridge | 179:b0033dcd6934 | 155 | #define RAM2_BLOCK_SIZE 0x800 // 2 kB block |
AnnaBridge | 179:b0033dcd6934 | 156 | #elif defined(_SILICON_LABS_GECKO_INTERNAL_SDID_95) |
AnnaBridge | 179:b0033dcd6934 | 157 | #define RAM0_BLOCKS 1 |
AnnaBridge | 179:b0033dcd6934 | 158 | #define RAM0_BLOCK_SIZE 0x4000 // 16 kB block |
AnnaBridge | 179:b0033dcd6934 | 159 | #define RAM1_BLOCKS 1 |
AnnaBridge | 179:b0033dcd6934 | 160 | #define RAM1_BLOCK_SIZE 0x4000 // 16 kB block |
AnnaBridge | 179:b0033dcd6934 | 161 | #define RAM2_BLOCKS 1 |
AnnaBridge | 179:b0033dcd6934 | 162 | #define RAM2_BLOCK_SIZE 0x800 // 2 kB block |
AnnaBridge | 179:b0033dcd6934 | 163 | #elif defined(_SILICON_LABS_GECKO_INTERNAL_SDID_103) |
AnnaBridge | 179:b0033dcd6934 | 164 | #define RAM0_BLOCKS 4 |
AnnaBridge | 179:b0033dcd6934 | 165 | #define RAM0_BLOCK_SIZE 0x2000 // 8 kB blocks |
<> | 161:2cc1468da177 | 166 | #elif defined(_SILICON_LABS_32B_SERIES_0) && defined(_EFM32_GIANT_FAMILY) |
<> | 161:2cc1468da177 | 167 | #define RAM0_BLOCKS 4 |
<> | 161:2cc1468da177 | 168 | #define RAM0_BLOCK_SIZE 0x8000 // 32 kB blocks |
<> | 161:2cc1468da177 | 169 | #elif defined(_SILICON_LABS_32B_SERIES_0) && defined(_EFM32_GECKO_FAMILY) |
<> | 161:2cc1468da177 | 170 | #define RAM0_BLOCKS 4 |
<> | 161:2cc1468da177 | 171 | #define RAM0_BLOCK_SIZE 0x1000 // 4 kB blocks |
AnnaBridge | 179:b0033dcd6934 | 172 | #elif defined(_SILICON_LABS_32B_SERIES_1) && defined(_EFM32_GIANT_FAMILY) |
AnnaBridge | 179:b0033dcd6934 | 173 | #define RAM0_BLOCKS 8 |
AnnaBridge | 179:b0033dcd6934 | 174 | #define RAM0_BLOCK_SIZE 0x4000 // 16 kB blocks |
AnnaBridge | 179:b0033dcd6934 | 175 | #define RAM1_BLOCKS 8 |
AnnaBridge | 179:b0033dcd6934 | 176 | #define RAM1_BLOCK_SIZE 0x4000 // 16 kB blocks |
AnnaBridge | 179:b0033dcd6934 | 177 | #define RAM2_BLOCKS 4 |
AnnaBridge | 179:b0033dcd6934 | 178 | #define RAM2_BLOCK_SIZE 0x10000 // 64 kB blocks |
<> | 150:02e0a0aed4ec | 179 | #endif |
<> | 150:02e0a0aed4ec | 180 | |
<> | 161:2cc1468da177 | 181 | #if defined(_SILICON_LABS_32B_SERIES_0) |
<> | 161:2cc1468da177 | 182 | /* RAM_MEM_END on Gecko devices have a value larger than the SRAM_SIZE */ |
<> | 161:2cc1468da177 | 183 | #define RAM0_END (SRAM_BASE + SRAM_SIZE - 1) |
<> | 161:2cc1468da177 | 184 | #else |
<> | 161:2cc1468da177 | 185 | #define RAM0_END RAM_MEM_END |
<> | 150:02e0a0aed4ec | 186 | #endif |
<> | 150:02e0a0aed4ec | 187 | |
AnnaBridge | 179:b0033dcd6934 | 188 | #if defined(CMU_STATUS_HFXOSHUNTOPTRDY) |
AnnaBridge | 179:b0033dcd6934 | 189 | #define HFXO_STATUS_READY_FLAGS (CMU_STATUS_HFXOPEAKDETRDY | CMU_STATUS_HFXOSHUNTOPTRDY) |
AnnaBridge | 179:b0033dcd6934 | 190 | #elif defined(CMU_STATUS_HFXOPEAKDETRDY) |
AnnaBridge | 179:b0033dcd6934 | 191 | #define HFXO_STATUS_READY_FLAGS (CMU_STATUS_HFXOPEAKDETRDY) |
AnnaBridge | 179:b0033dcd6934 | 192 | #endif |
AnnaBridge | 179:b0033dcd6934 | 193 | |
<> | 144:ef7eb2e8f9f7 | 194 | /** @endcond */ |
<> | 144:ef7eb2e8f9f7 | 195 | |
AnnaBridge | 179:b0033dcd6934 | 196 | #if defined(_EMU_DCDCCTRL_MASK) |
<> | 144:ef7eb2e8f9f7 | 197 | /* DCDCTODVDD output range min/max */ |
<> | 150:02e0a0aed4ec | 198 | #if !defined(PWRCFG_DCDCTODVDD_VMIN) |
<> | 150:02e0a0aed4ec | 199 | #define PWRCFG_DCDCTODVDD_VMIN 1800 |
<> | 150:02e0a0aed4ec | 200 | #endif |
<> | 150:02e0a0aed4ec | 201 | #if !defined(PWRCFG_DCDCTODVDD_VMAX) |
<> | 144:ef7eb2e8f9f7 | 202 | #define PWRCFG_DCDCTODVDD_VMAX 3000 |
<> | 150:02e0a0aed4ec | 203 | #endif |
<> | 144:ef7eb2e8f9f7 | 204 | #endif |
<> | 144:ef7eb2e8f9f7 | 205 | |
<> | 144:ef7eb2e8f9f7 | 206 | /******************************************************************************* |
<> | 161:2cc1468da177 | 207 | *************************** LOCAL VARIABLES ******************************** |
<> | 144:ef7eb2e8f9f7 | 208 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 209 | |
<> | 144:ef7eb2e8f9f7 | 210 | /** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */ |
<> | 161:2cc1468da177 | 211 | |
<> | 161:2cc1468da177 | 212 | /* Static user configuration */ |
AnnaBridge | 179:b0033dcd6934 | 213 | #if defined(_EMU_DCDCCTRL_MASK) |
<> | 144:ef7eb2e8f9f7 | 214 | static uint16_t dcdcMaxCurrent_mA; |
<> | 150:02e0a0aed4ec | 215 | static uint16_t dcdcEm01LoadCurrent_mA; |
<> | 150:02e0a0aed4ec | 216 | static EMU_DcdcLnReverseCurrentControl_TypeDef dcdcReverseCurrentControl; |
<> | 144:ef7eb2e8f9f7 | 217 | #endif |
AnnaBridge | 179:b0033dcd6934 | 218 | #if defined(_EMU_CMD_EM01VSCALE0_MASK) |
AnnaBridge | 179:b0033dcd6934 | 219 | static EMU_EM01Init_TypeDef vScaleEM01Config = { false }; |
<> | 161:2cc1468da177 | 220 | #endif |
<> | 144:ef7eb2e8f9f7 | 221 | /** @endcond */ |
<> | 144:ef7eb2e8f9f7 | 222 | |
<> | 144:ef7eb2e8f9f7 | 223 | /******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 224 | ************************** LOCAL FUNCTIONS ******************************** |
<> | 144:ef7eb2e8f9f7 | 225 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 226 | |
<> | 144:ef7eb2e8f9f7 | 227 | /** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */ |
<> | 144:ef7eb2e8f9f7 | 228 | |
AnnaBridge | 179:b0033dcd6934 | 229 | #if defined(_EMU_CMD_EM01VSCALE0_MASK) |
<> | 161:2cc1468da177 | 230 | /* Convert from level to EM0 and 1 command bit */ |
<> | 161:2cc1468da177 | 231 | __STATIC_INLINE uint32_t vScaleEM01Cmd(EMU_VScaleEM01_TypeDef level) |
<> | 161:2cc1468da177 | 232 | { |
<> | 161:2cc1468da177 | 233 | return EMU_CMD_EM01VSCALE0 << (_EMU_STATUS_VSCALE_VSCALE0 - (uint32_t)level); |
<> | 161:2cc1468da177 | 234 | } |
<> | 161:2cc1468da177 | 235 | #endif |
<> | 161:2cc1468da177 | 236 | |
AnnaBridge | 179:b0033dcd6934 | 237 | #if defined(ERRATA_FIX_EMU_E110_ENABLE) |
AnnaBridge | 179:b0033dcd6934 | 238 | SL_RAMFUNC_DECLARATOR static void __attribute__ ((noinline)) ramWFI(void); |
AnnaBridge | 179:b0033dcd6934 | 239 | SL_RAMFUNC_DEFINITION_BEGIN |
AnnaBridge | 179:b0033dcd6934 | 240 | static void __attribute__ ((noinline)) ramWFI(void) |
AnnaBridge | 179:b0033dcd6934 | 241 | { |
AnnaBridge | 179:b0033dcd6934 | 242 | __WFI(); // Enter EM2 or EM3 |
AnnaBridge | 179:b0033dcd6934 | 243 | *(volatile uint32_t*)4; // Clear faulty read data after wakeup |
AnnaBridge | 179:b0033dcd6934 | 244 | } |
AnnaBridge | 179:b0033dcd6934 | 245 | SL_RAMFUNC_DEFINITION_END |
AnnaBridge | 179:b0033dcd6934 | 246 | #endif |
AnnaBridge | 179:b0033dcd6934 | 247 | |
<> | 144:ef7eb2e8f9f7 | 248 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 249 | * @brief |
<> | 161:2cc1468da177 | 250 | * Save/restore/update oscillator, core clock and voltage scaling configuration on |
<> | 161:2cc1468da177 | 251 | * EM2 or EM3 entry/exit. |
<> | 161:2cc1468da177 | 252 | * |
<> | 161:2cc1468da177 | 253 | * @details |
<> | 161:2cc1468da177 | 254 | * Hardware may automatically change oscillator and voltage scaling configuration |
<> | 161:2cc1468da177 | 255 | * when going into or out of an energy mode. Static data in this function keeps track of |
<> | 161:2cc1468da177 | 256 | * such configuration bits and is used to restore state if needed. |
<> | 161:2cc1468da177 | 257 | * |
<> | 144:ef7eb2e8f9f7 | 258 | ******************************************************************************/ |
AnnaBridge | 179:b0033dcd6934 | 259 | typedef enum { |
<> | 161:2cc1468da177 | 260 | emState_Save, /* Save EMU and CMU state */ |
<> | 161:2cc1468da177 | 261 | emState_Restore, /* Restore and unlock */ |
<> | 161:2cc1468da177 | 262 | } emState_TypeDef; |
<> | 161:2cc1468da177 | 263 | |
<> | 161:2cc1468da177 | 264 | static void emState(emState_TypeDef action) |
<> | 144:ef7eb2e8f9f7 | 265 | { |
<> | 144:ef7eb2e8f9f7 | 266 | uint32_t oscEnCmd; |
<> | 144:ef7eb2e8f9f7 | 267 | uint32_t cmuLocked; |
<> | 161:2cc1468da177 | 268 | static uint32_t cmuStatus; |
<> | 161:2cc1468da177 | 269 | static CMU_Select_TypeDef hfClock; |
AnnaBridge | 179:b0033dcd6934 | 270 | #if defined(_EMU_CMD_EM01VSCALE0_MASK) |
<> | 161:2cc1468da177 | 271 | static uint8_t vScaleStatus; |
<> | 144:ef7eb2e8f9f7 | 272 | #endif |
<> | 144:ef7eb2e8f9f7 | 273 | |
<> | 161:2cc1468da177 | 274 | /* Save or update state */ |
AnnaBridge | 179:b0033dcd6934 | 275 | if (action == emState_Save) { |
<> | 161:2cc1468da177 | 276 | /* Save configuration. */ |
<> | 161:2cc1468da177 | 277 | cmuStatus = CMU->STATUS; |
<> | 161:2cc1468da177 | 278 | hfClock = CMU_ClockSelectGet(cmuClock_HF); |
AnnaBridge | 179:b0033dcd6934 | 279 | #if defined(_EMU_CMD_EM01VSCALE0_MASK) |
<> | 161:2cc1468da177 | 280 | /* Save vscale */ |
<> | 161:2cc1468da177 | 281 | EMU_VScaleWait(); |
<> | 161:2cc1468da177 | 282 | vScaleStatus = (uint8_t)((EMU->STATUS & _EMU_STATUS_VSCALE_MASK) |
<> | 161:2cc1468da177 | 283 | >> _EMU_STATUS_VSCALE_SHIFT); |
<> | 150:02e0a0aed4ec | 284 | #endif |
AnnaBridge | 179:b0033dcd6934 | 285 | } else if (action == emState_Restore) { /* Restore state */ |
<> | 161:2cc1468da177 | 286 | /* Apply saved configuration. */ |
AnnaBridge | 179:b0033dcd6934 | 287 | #if defined(_EMU_CMD_EM01VSCALE0_MASK) |
AnnaBridge | 179:b0033dcd6934 | 288 | /* Restore EM0 and 1 voltage scaling level. @ref EMU_VScaleWait() is called later, |
<> | 161:2cc1468da177 | 289 | just before HF clock select is set. */ |
<> | 161:2cc1468da177 | 290 | EMU->CMD = vScaleEM01Cmd((EMU_VScaleEM01_TypeDef)vScaleStatus); |
<> | 144:ef7eb2e8f9f7 | 291 | #endif |
<> | 144:ef7eb2e8f9f7 | 292 | |
<> | 161:2cc1468da177 | 293 | /* CMU registers may be locked */ |
<> | 161:2cc1468da177 | 294 | cmuLocked = CMU->LOCK & CMU_LOCK_LOCKKEY_LOCKED; |
<> | 161:2cc1468da177 | 295 | CMU_Unlock(); |
<> | 161:2cc1468da177 | 296 | |
<> | 161:2cc1468da177 | 297 | /* AUXHFRCO are automatically disabled (except if using debugger). */ |
<> | 161:2cc1468da177 | 298 | /* HFRCO, USHFRCO and HFXO are automatically disabled. */ |
<> | 161:2cc1468da177 | 299 | /* LFRCO/LFXO may be disabled by SW in EM3. */ |
<> | 161:2cc1468da177 | 300 | /* Restore according to status prior to entering energy mode. */ |
<> | 161:2cc1468da177 | 301 | oscEnCmd = 0; |
<> | 161:2cc1468da177 | 302 | oscEnCmd |= ((cmuStatus & CMU_STATUS_HFRCOENS) ? CMU_OSCENCMD_HFRCOEN : 0); |
<> | 161:2cc1468da177 | 303 | oscEnCmd |= ((cmuStatus & CMU_STATUS_AUXHFRCOENS) ? CMU_OSCENCMD_AUXHFRCOEN : 0); |
<> | 161:2cc1468da177 | 304 | oscEnCmd |= ((cmuStatus & CMU_STATUS_LFRCOENS) ? CMU_OSCENCMD_LFRCOEN : 0); |
<> | 161:2cc1468da177 | 305 | oscEnCmd |= ((cmuStatus & CMU_STATUS_HFXOENS) ? CMU_OSCENCMD_HFXOEN : 0); |
<> | 161:2cc1468da177 | 306 | oscEnCmd |= ((cmuStatus & CMU_STATUS_LFXOENS) ? CMU_OSCENCMD_LFXOEN : 0); |
AnnaBridge | 179:b0033dcd6934 | 307 | #if defined(_CMU_STATUS_USHFRCOENS_MASK) |
<> | 161:2cc1468da177 | 308 | oscEnCmd |= ((cmuStatus & CMU_STATUS_USHFRCOENS) ? CMU_OSCENCMD_USHFRCOEN : 0); |
<> | 161:2cc1468da177 | 309 | #endif |
<> | 161:2cc1468da177 | 310 | CMU->OSCENCMD = oscEnCmd; |
<> | 144:ef7eb2e8f9f7 | 311 | |
AnnaBridge | 179:b0033dcd6934 | 312 | #if defined(_EMU_STATUS_VSCALE_MASK) |
<> | 161:2cc1468da177 | 313 | /* Wait for upscale to complete and then restore selected clock */ |
<> | 161:2cc1468da177 | 314 | EMU_VScaleWait(); |
<> | 144:ef7eb2e8f9f7 | 315 | #endif |
<> | 161:2cc1468da177 | 316 | |
AnnaBridge | 179:b0033dcd6934 | 317 | if (hfClock != cmuSelect_HFRCO) { |
<> | 161:2cc1468da177 | 318 | CMU_ClockSelectSet(cmuClock_HF, hfClock); |
<> | 161:2cc1468da177 | 319 | } |
<> | 161:2cc1468da177 | 320 | |
<> | 161:2cc1468da177 | 321 | /* If HFRCO was disabled before entering Energy Mode, turn it off again */ |
<> | 161:2cc1468da177 | 322 | /* as it is automatically enabled by wake up */ |
AnnaBridge | 179:b0033dcd6934 | 323 | if ( !(cmuStatus & CMU_STATUS_HFRCOENS) ) { |
<> | 161:2cc1468da177 | 324 | CMU->OSCENCMD = CMU_OSCENCMD_HFRCODIS; |
<> | 161:2cc1468da177 | 325 | } |
<> | 161:2cc1468da177 | 326 | |
<> | 161:2cc1468da177 | 327 | /* Restore CMU register locking */ |
AnnaBridge | 179:b0033dcd6934 | 328 | if (cmuLocked) { |
<> | 161:2cc1468da177 | 329 | CMU_Lock(); |
<> | 161:2cc1468da177 | 330 | } |
<> | 144:ef7eb2e8f9f7 | 331 | } |
<> | 144:ef7eb2e8f9f7 | 332 | } |
<> | 144:ef7eb2e8f9f7 | 333 | |
AnnaBridge | 179:b0033dcd6934 | 334 | #if defined(ERRATA_FIX_EMU_E107_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 335 | /* Get enable conditions for errata EMU_E107 fix. */ |
<> | 150:02e0a0aed4ec | 336 | __STATIC_INLINE bool getErrataFixEmuE107En(void) |
<> | 144:ef7eb2e8f9f7 | 337 | { |
<> | 144:ef7eb2e8f9f7 | 338 | /* SYSTEM_ChipRevisionGet could have been used here, but we would like a |
<> | 144:ef7eb2e8f9f7 | 339 | * faster implementation in this case. |
<> | 144:ef7eb2e8f9f7 | 340 | */ |
<> | 144:ef7eb2e8f9f7 | 341 | uint16_t majorMinorRev; |
<> | 144:ef7eb2e8f9f7 | 342 | |
<> | 144:ef7eb2e8f9f7 | 343 | /* CHIP MAJOR bit [3:0] */ |
<> | 144:ef7eb2e8f9f7 | 344 | majorMinorRev = ((ROMTABLE->PID0 & _ROMTABLE_PID0_REVMAJOR_MASK) |
<> | 144:ef7eb2e8f9f7 | 345 | >> _ROMTABLE_PID0_REVMAJOR_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 346 | << 8; |
<> | 144:ef7eb2e8f9f7 | 347 | /* CHIP MINOR bit [7:4] */ |
<> | 144:ef7eb2e8f9f7 | 348 | majorMinorRev |= ((ROMTABLE->PID2 & _ROMTABLE_PID2_REVMINORMSB_MASK) |
<> | 144:ef7eb2e8f9f7 | 349 | >> _ROMTABLE_PID2_REVMINORMSB_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 350 | << 4; |
<> | 144:ef7eb2e8f9f7 | 351 | /* CHIP MINOR bit [3:0] */ |
<> | 144:ef7eb2e8f9f7 | 352 | majorMinorRev |= (ROMTABLE->PID3 & _ROMTABLE_PID3_REVMINORLSB_MASK) |
<> | 144:ef7eb2e8f9f7 | 353 | >> _ROMTABLE_PID3_REVMINORLSB_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 354 | |
AnnaBridge | 179:b0033dcd6934 | 355 | #if defined(_EFM32_GECKO_FAMILY) |
<> | 144:ef7eb2e8f9f7 | 356 | return (majorMinorRev <= 0x0103); |
AnnaBridge | 179:b0033dcd6934 | 357 | #elif defined(_EFM32_TINY_FAMILY) |
<> | 144:ef7eb2e8f9f7 | 358 | return (majorMinorRev <= 0x0102); |
AnnaBridge | 179:b0033dcd6934 | 359 | #elif defined(_EFM32_GIANT_FAMILY) |
<> | 144:ef7eb2e8f9f7 | 360 | return (majorMinorRev <= 0x0103) || (majorMinorRev == 0x0204); |
AnnaBridge | 179:b0033dcd6934 | 361 | #elif defined(_EFM32_WONDER_FAMILY) |
<> | 144:ef7eb2e8f9f7 | 362 | return (majorMinorRev == 0x0100); |
<> | 144:ef7eb2e8f9f7 | 363 | #else |
<> | 144:ef7eb2e8f9f7 | 364 | /* Zero Gecko and future families are not affected by errata EMU_E107 */ |
<> | 144:ef7eb2e8f9f7 | 365 | return false; |
<> | 144:ef7eb2e8f9f7 | 366 | #endif |
<> | 144:ef7eb2e8f9f7 | 367 | } |
<> | 144:ef7eb2e8f9f7 | 368 | #endif |
<> | 144:ef7eb2e8f9f7 | 369 | |
<> | 144:ef7eb2e8f9f7 | 370 | /* LP prepare / LN restore P/NFET count */ |
<> | 144:ef7eb2e8f9f7 | 371 | #define DCDC_LP_PFET_CNT 7 |
<> | 150:02e0a0aed4ec | 372 | #define DCDC_LP_NFET_CNT 7 |
AnnaBridge | 179:b0033dcd6934 | 373 | #if defined(ERRATA_FIX_DCDC_FETCNT_SET_ENABLE) |
<> | 150:02e0a0aed4ec | 374 | static void currentLimitersUpdate(void); |
<> | 150:02e0a0aed4ec | 375 | static void dcdcFetCntSet(bool lpModeSet) |
<> | 144:ef7eb2e8f9f7 | 376 | { |
<> | 144:ef7eb2e8f9f7 | 377 | uint32_t tmp; |
<> | 144:ef7eb2e8f9f7 | 378 | static uint32_t emuDcdcMiscCtrlReg; |
<> | 144:ef7eb2e8f9f7 | 379 | |
AnnaBridge | 179:b0033dcd6934 | 380 | if (lpModeSet) { |
<> | 144:ef7eb2e8f9f7 | 381 | emuDcdcMiscCtrlReg = EMU->DCDCMISCCTRL; |
<> | 144:ef7eb2e8f9f7 | 382 | tmp = EMU->DCDCMISCCTRL |
<> | 144:ef7eb2e8f9f7 | 383 | & ~(_EMU_DCDCMISCCTRL_PFETCNT_MASK | _EMU_DCDCMISCCTRL_NFETCNT_MASK); |
<> | 144:ef7eb2e8f9f7 | 384 | tmp |= (DCDC_LP_PFET_CNT << _EMU_DCDCMISCCTRL_PFETCNT_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 385 | | (DCDC_LP_NFET_CNT << _EMU_DCDCMISCCTRL_NFETCNT_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 386 | EMU->DCDCMISCCTRL = tmp; |
<> | 150:02e0a0aed4ec | 387 | currentLimitersUpdate(); |
AnnaBridge | 179:b0033dcd6934 | 388 | } else { |
<> | 144:ef7eb2e8f9f7 | 389 | EMU->DCDCMISCCTRL = emuDcdcMiscCtrlReg; |
<> | 150:02e0a0aed4ec | 390 | currentLimitersUpdate(); |
<> | 144:ef7eb2e8f9f7 | 391 | } |
<> | 144:ef7eb2e8f9f7 | 392 | } |
<> | 150:02e0a0aed4ec | 393 | #endif |
<> | 144:ef7eb2e8f9f7 | 394 | |
AnnaBridge | 179:b0033dcd6934 | 395 | #if defined(ERRATA_FIX_DCDC_LNHS_BLOCK_ENABLE) |
<> | 150:02e0a0aed4ec | 396 | static void dcdcHsFixLnBlock(void) |
<> | 144:ef7eb2e8f9f7 | 397 | { |
AnnaBridge | 179:b0033dcd6934 | 398 | #define EMU_DCDCSTATUS (*(volatile uint32_t *)(EMU_BASE + 0x7C)) |
<> | 150:02e0a0aed4ec | 399 | if ((errataFixDcdcHsState == errataFixDcdcHsTrimSet) |
AnnaBridge | 179:b0033dcd6934 | 400 | || (errataFixDcdcHsState == errataFixDcdcHsBypassLn)) { |
<> | 144:ef7eb2e8f9f7 | 401 | /* Wait for LNRUNNING */ |
AnnaBridge | 179:b0033dcd6934 | 402 | if ((EMU->DCDCCTRL & _EMU_DCDCCTRL_DCDCMODE_MASK) == EMU_DCDCCTRL_DCDCMODE_LOWNOISE) { |
AnnaBridge | 179:b0033dcd6934 | 403 | while (!(EMU_DCDCSTATUS & (0x1 << 16))) ; |
<> | 144:ef7eb2e8f9f7 | 404 | } |
<> | 144:ef7eb2e8f9f7 | 405 | errataFixDcdcHsState = errataFixDcdcHsLnWaitDone; |
<> | 144:ef7eb2e8f9f7 | 406 | } |
<> | 144:ef7eb2e8f9f7 | 407 | } |
<> | 144:ef7eb2e8f9f7 | 408 | #endif |
<> | 144:ef7eb2e8f9f7 | 409 | |
AnnaBridge | 179:b0033dcd6934 | 410 | #if defined(_EMU_CTRL_EM23VSCALE_MASK) |
<> | 161:2cc1468da177 | 411 | /* Configure EMU and CMU for EM2 and 3 voltage downscale */ |
<> | 161:2cc1468da177 | 412 | static void vScaleDownEM23Setup(void) |
<> | 161:2cc1468da177 | 413 | { |
<> | 161:2cc1468da177 | 414 | uint32_t hfSrcClockFrequency; |
<> | 150:02e0a0aed4ec | 415 | |
<> | 161:2cc1468da177 | 416 | EMU_VScaleEM23_TypeDef scaleEM23Voltage = |
AnnaBridge | 179:b0033dcd6934 | 417 | (EMU_VScaleEM23_TypeDef)((EMU->CTRL & _EMU_CTRL_EM23VSCALE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 418 | >> _EMU_CTRL_EM23VSCALE_SHIFT); |
<> | 161:2cc1468da177 | 419 | |
<> | 161:2cc1468da177 | 420 | EMU_VScaleEM01_TypeDef currentEM01Voltage = |
AnnaBridge | 179:b0033dcd6934 | 421 | (EMU_VScaleEM01_TypeDef)((EMU->STATUS & _EMU_STATUS_VSCALE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 422 | >> _EMU_STATUS_VSCALE_SHIFT); |
<> | 161:2cc1468da177 | 423 | |
<> | 161:2cc1468da177 | 424 | /* Wait until previous scaling is done. */ |
<> | 161:2cc1468da177 | 425 | EMU_VScaleWait(); |
<> | 161:2cc1468da177 | 426 | |
<> | 161:2cc1468da177 | 427 | /* Inverse coding. */ |
AnnaBridge | 179:b0033dcd6934 | 428 | if ((uint32_t)scaleEM23Voltage > (uint32_t)currentEM01Voltage) { |
<> | 161:2cc1468da177 | 429 | /* Set safe clock and wait-states. */ |
AnnaBridge | 179:b0033dcd6934 | 430 | if (scaleEM23Voltage == emuVScaleEM23_LowPower) { |
<> | 161:2cc1468da177 | 431 | hfSrcClockFrequency = CMU_ClockDivGet(cmuClock_HF) * CMU_ClockFreqGet(cmuClock_HF); |
<> | 161:2cc1468da177 | 432 | /* Set default low power voltage HFRCO band as HF clock. */ |
AnnaBridge | 179:b0033dcd6934 | 433 | if (hfSrcClockFrequency > CMU_VSCALEEM01_LOWPOWER_VOLTAGE_CLOCK_MAX) { |
<> | 161:2cc1468da177 | 434 | CMU_HFRCOBandSet(cmuHFRCOFreq_19M0Hz); |
<> | 161:2cc1468da177 | 435 | } |
<> | 161:2cc1468da177 | 436 | CMU_ClockSelectSet(cmuClock_HF, cmuSelect_HFRCO); |
AnnaBridge | 179:b0033dcd6934 | 437 | } else { |
<> | 161:2cc1468da177 | 438 | /* Other voltage scaling levels are not currently supported. */ |
<> | 161:2cc1468da177 | 439 | EFM_ASSERT(false); |
<> | 161:2cc1468da177 | 440 | } |
AnnaBridge | 179:b0033dcd6934 | 441 | } else { |
<> | 161:2cc1468da177 | 442 | /* Same voltage or hardware will scale to min(EMU_CTRL_EM23VSCALE, EMU_STATUS_VSCALE) */ |
<> | 161:2cc1468da177 | 443 | } |
<> | 161:2cc1468da177 | 444 | } |
<> | 161:2cc1468da177 | 445 | #endif |
<> | 144:ef7eb2e8f9f7 | 446 | /** @endcond */ |
<> | 144:ef7eb2e8f9f7 | 447 | |
<> | 144:ef7eb2e8f9f7 | 448 | /******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 449 | ************************** GLOBAL FUNCTIONS ******************************* |
<> | 144:ef7eb2e8f9f7 | 450 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 451 | |
<> | 144:ef7eb2e8f9f7 | 452 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 453 | * @brief |
<> | 144:ef7eb2e8f9f7 | 454 | * Enter energy mode 2 (EM2). |
<> | 144:ef7eb2e8f9f7 | 455 | * |
<> | 144:ef7eb2e8f9f7 | 456 | * @details |
<> | 144:ef7eb2e8f9f7 | 457 | * When entering EM2, the high frequency clocks are disabled, ie HFXO, HFRCO |
<> | 144:ef7eb2e8f9f7 | 458 | * and AUXHFRCO (for AUXHFRCO, see exception note below). When re-entering |
<> | 144:ef7eb2e8f9f7 | 459 | * EM0, HFRCO is re-enabled and the core will be clocked by the configured |
<> | 144:ef7eb2e8f9f7 | 460 | * HFRCO band. This ensures a quick wakeup from EM2. |
<> | 144:ef7eb2e8f9f7 | 461 | * |
<> | 144:ef7eb2e8f9f7 | 462 | * However, prior to entering EM2, the core may have been using another |
<> | 144:ef7eb2e8f9f7 | 463 | * oscillator than HFRCO. The @p restore parameter gives the user the option |
<> | 144:ef7eb2e8f9f7 | 464 | * to restore all HF oscillators according to state prior to entering EM2, |
<> | 144:ef7eb2e8f9f7 | 465 | * as well as the clock used to clock the core. This restore procedure is |
<> | 144:ef7eb2e8f9f7 | 466 | * handled by SW. However, since handled by SW, it will not be restored |
<> | 144:ef7eb2e8f9f7 | 467 | * before completing the interrupt function(s) waking up the core! |
<> | 144:ef7eb2e8f9f7 | 468 | * |
<> | 144:ef7eb2e8f9f7 | 469 | * @note |
<> | 144:ef7eb2e8f9f7 | 470 | * If restoring core clock to use the HFXO oscillator, which has been |
<> | 144:ef7eb2e8f9f7 | 471 | * disabled during EM2 mode, this function will stall until the oscillator |
<> | 144:ef7eb2e8f9f7 | 472 | * has stabilized. Stalling time can be reduced by adding interrupt |
<> | 144:ef7eb2e8f9f7 | 473 | * support detecting stable oscillator, and an asynchronous switch to the |
<> | 144:ef7eb2e8f9f7 | 474 | * original oscillator. See CMU documentation. Such a feature is however |
<> | 144:ef7eb2e8f9f7 | 475 | * outside the scope of the implementation in this function. |
AnnaBridge | 179:b0033dcd6934 | 476 | * @note |
AnnaBridge | 179:b0033dcd6934 | 477 | * If ERRATA_FIX_EMU_E110_ENABLE is active, the core's SLEEPONEXIT feature |
AnnaBridge | 179:b0033dcd6934 | 478 | * can not be used. |
<> | 144:ef7eb2e8f9f7 | 479 | * @par |
<> | 144:ef7eb2e8f9f7 | 480 | * If HFXO is re-enabled by this function, and NOT used to clock the core, |
<> | 144:ef7eb2e8f9f7 | 481 | * this function will not wait for HFXO to stabilize. This must be considered |
<> | 144:ef7eb2e8f9f7 | 482 | * by the application if trying to use features relying on that oscillator |
<> | 144:ef7eb2e8f9f7 | 483 | * upon return. |
<> | 144:ef7eb2e8f9f7 | 484 | * @par |
<> | 144:ef7eb2e8f9f7 | 485 | * If a debugger is attached, the AUXHFRCO will not be disabled if enabled |
<> | 144:ef7eb2e8f9f7 | 486 | * upon entering EM2. It will thus remain enabled when returning to EM0 |
<> | 144:ef7eb2e8f9f7 | 487 | * regardless of the @p restore parameter. |
<> | 144:ef7eb2e8f9f7 | 488 | * @par |
AnnaBridge | 179:b0033dcd6934 | 489 | * If HFXO autostart and select is enabled by using @ref CMU_HFXOAutostartEnable(), |
<> | 144:ef7eb2e8f9f7 | 490 | * the starting and selecting of the core clocks will be identical to the user |
<> | 144:ef7eb2e8f9f7 | 491 | * independently of the value of the @p restore parameter when waking up on |
<> | 144:ef7eb2e8f9f7 | 492 | * the wakeup sources corresponding to the autostart and select setting. |
<> | 161:2cc1468da177 | 493 | * @par |
AnnaBridge | 179:b0033dcd6934 | 494 | * If voltage scaling is supported, the restore parameter is true and the EM0 |
AnnaBridge | 179:b0033dcd6934 | 495 | * voltage scaling level is set higher than the EM2 level, then the EM0 level is |
<> | 161:2cc1468da177 | 496 | * also restored. |
<> | 144:ef7eb2e8f9f7 | 497 | * |
<> | 144:ef7eb2e8f9f7 | 498 | * @param[in] restore |
AnnaBridge | 179:b0033dcd6934 | 499 | * @li true - save and restore oscillators, clocks and voltage scaling, see |
AnnaBridge | 179:b0033dcd6934 | 500 | * function details. |
AnnaBridge | 179:b0033dcd6934 | 501 | * @li false - do not save and restore oscillators and clocks, see function |
AnnaBridge | 179:b0033dcd6934 | 502 | * details. |
<> | 144:ef7eb2e8f9f7 | 503 | * @par |
<> | 144:ef7eb2e8f9f7 | 504 | * The @p restore option should only be used if all clock control is done |
<> | 144:ef7eb2e8f9f7 | 505 | * via the CMU API. |
<> | 144:ef7eb2e8f9f7 | 506 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 507 | void EMU_EnterEM2(bool restore) |
<> | 144:ef7eb2e8f9f7 | 508 | { |
AnnaBridge | 179:b0033dcd6934 | 509 | #if defined(ERRATA_FIX_EMU_E107_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 510 | bool errataFixEmuE107En; |
<> | 144:ef7eb2e8f9f7 | 511 | uint32_t nonWicIntEn[2]; |
<> | 144:ef7eb2e8f9f7 | 512 | #endif |
<> | 144:ef7eb2e8f9f7 | 513 | |
AnnaBridge | 179:b0033dcd6934 | 514 | /* Only save EMU and CMU state if restored on wake-up. */ |
AnnaBridge | 179:b0033dcd6934 | 515 | if (restore) { |
AnnaBridge | 179:b0033dcd6934 | 516 | emState(emState_Save); |
AnnaBridge | 179:b0033dcd6934 | 517 | } |
<> | 161:2cc1468da177 | 518 | |
AnnaBridge | 179:b0033dcd6934 | 519 | #if defined(_EMU_CTRL_EM23VSCALE_MASK) |
<> | 161:2cc1468da177 | 520 | vScaleDownEM23Setup(); |
<> | 144:ef7eb2e8f9f7 | 521 | #endif |
<> | 144:ef7eb2e8f9f7 | 522 | |
<> | 144:ef7eb2e8f9f7 | 523 | /* Enter Cortex deep sleep mode */ |
<> | 144:ef7eb2e8f9f7 | 524 | SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; |
<> | 144:ef7eb2e8f9f7 | 525 | |
<> | 144:ef7eb2e8f9f7 | 526 | /* Fix for errata EMU_E107 - store non-WIC interrupt enable flags. |
<> | 144:ef7eb2e8f9f7 | 527 | Disable the enabled non-WIC interrupts. */ |
AnnaBridge | 179:b0033dcd6934 | 528 | #if defined(ERRATA_FIX_EMU_E107_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 529 | errataFixEmuE107En = getErrataFixEmuE107En(); |
AnnaBridge | 179:b0033dcd6934 | 530 | if (errataFixEmuE107En) { |
<> | 144:ef7eb2e8f9f7 | 531 | nonWicIntEn[0] = NVIC->ISER[0] & NON_WIC_INT_MASK_0; |
<> | 144:ef7eb2e8f9f7 | 532 | NVIC->ICER[0] = nonWicIntEn[0]; |
<> | 144:ef7eb2e8f9f7 | 533 | #if (NON_WIC_INT_MASK_1 != (~(0x0U))) |
<> | 144:ef7eb2e8f9f7 | 534 | nonWicIntEn[1] = NVIC->ISER[1] & NON_WIC_INT_MASK_1; |
<> | 144:ef7eb2e8f9f7 | 535 | NVIC->ICER[1] = nonWicIntEn[1]; |
<> | 144:ef7eb2e8f9f7 | 536 | #endif |
<> | 144:ef7eb2e8f9f7 | 537 | } |
<> | 144:ef7eb2e8f9f7 | 538 | #endif |
<> | 144:ef7eb2e8f9f7 | 539 | |
AnnaBridge | 179:b0033dcd6934 | 540 | #if defined(ERRATA_FIX_DCDC_FETCNT_SET_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 541 | dcdcFetCntSet(true); |
<> | 150:02e0a0aed4ec | 542 | #endif |
AnnaBridge | 179:b0033dcd6934 | 543 | #if defined(ERRATA_FIX_DCDC_LNHS_BLOCK_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 544 | dcdcHsFixLnBlock(); |
<> | 144:ef7eb2e8f9f7 | 545 | #endif |
<> | 144:ef7eb2e8f9f7 | 546 | |
AnnaBridge | 179:b0033dcd6934 | 547 | #if defined(ERRATA_FIX_EMU_E110_ENABLE) |
AnnaBridge | 179:b0033dcd6934 | 548 | CORE_CRITICAL_SECTION(ramWFI(); ) |
AnnaBridge | 179:b0033dcd6934 | 549 | #else |
<> | 144:ef7eb2e8f9f7 | 550 | __WFI(); |
AnnaBridge | 179:b0033dcd6934 | 551 | #endif |
<> | 144:ef7eb2e8f9f7 | 552 | |
AnnaBridge | 179:b0033dcd6934 | 553 | #if defined(ERRATA_FIX_DCDC_FETCNT_SET_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 554 | dcdcFetCntSet(false); |
<> | 144:ef7eb2e8f9f7 | 555 | #endif |
<> | 144:ef7eb2e8f9f7 | 556 | |
<> | 144:ef7eb2e8f9f7 | 557 | /* Fix for errata EMU_E107 - restore state of non-WIC interrupt enable flags. */ |
AnnaBridge | 179:b0033dcd6934 | 558 | #if defined(ERRATA_FIX_EMU_E107_ENABLE) |
AnnaBridge | 179:b0033dcd6934 | 559 | if (errataFixEmuE107En) { |
<> | 144:ef7eb2e8f9f7 | 560 | NVIC->ISER[0] = nonWicIntEn[0]; |
<> | 144:ef7eb2e8f9f7 | 561 | #if (NON_WIC_INT_MASK_1 != (~(0x0U))) |
<> | 144:ef7eb2e8f9f7 | 562 | NVIC->ISER[1] = nonWicIntEn[1]; |
<> | 144:ef7eb2e8f9f7 | 563 | #endif |
<> | 144:ef7eb2e8f9f7 | 564 | } |
<> | 144:ef7eb2e8f9f7 | 565 | #endif |
<> | 144:ef7eb2e8f9f7 | 566 | |
<> | 161:2cc1468da177 | 567 | /* Restore oscillators/clocks and voltage scaling if supported. */ |
AnnaBridge | 179:b0033dcd6934 | 568 | if (restore) { |
<> | 161:2cc1468da177 | 569 | emState(emState_Restore); |
AnnaBridge | 179:b0033dcd6934 | 570 | } else { |
<> | 161:2cc1468da177 | 571 | /* If not restoring, and original clock was not HFRCO, we have to */ |
<> | 161:2cc1468da177 | 572 | /* update CMSIS core clock variable since HF clock has changed */ |
<> | 161:2cc1468da177 | 573 | /* to HFRCO. */ |
<> | 144:ef7eb2e8f9f7 | 574 | SystemCoreClockUpdate(); |
<> | 144:ef7eb2e8f9f7 | 575 | } |
<> | 144:ef7eb2e8f9f7 | 576 | } |
<> | 144:ef7eb2e8f9f7 | 577 | |
<> | 144:ef7eb2e8f9f7 | 578 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 579 | * @brief |
<> | 144:ef7eb2e8f9f7 | 580 | * Enter energy mode 3 (EM3). |
<> | 144:ef7eb2e8f9f7 | 581 | * |
<> | 144:ef7eb2e8f9f7 | 582 | * @details |
<> | 144:ef7eb2e8f9f7 | 583 | * When entering EM3, the high frequency clocks are disabled by HW, ie HFXO, |
<> | 144:ef7eb2e8f9f7 | 584 | * HFRCO and AUXHFRCO (for AUXHFRCO, see exception note below). In addition, |
<> | 144:ef7eb2e8f9f7 | 585 | * the low frequency clocks, ie LFXO and LFRCO are disabled by SW. When |
<> | 144:ef7eb2e8f9f7 | 586 | * re-entering EM0, HFRCO is re-enabled and the core will be clocked by the |
<> | 144:ef7eb2e8f9f7 | 587 | * configured HFRCO band. This ensures a quick wakeup from EM3. |
<> | 144:ef7eb2e8f9f7 | 588 | * |
<> | 144:ef7eb2e8f9f7 | 589 | * However, prior to entering EM3, the core may have been using another |
<> | 144:ef7eb2e8f9f7 | 590 | * oscillator than HFRCO. The @p restore parameter gives the user the option |
<> | 144:ef7eb2e8f9f7 | 591 | * to restore all HF/LF oscillators according to state prior to entering EM3, |
<> | 144:ef7eb2e8f9f7 | 592 | * as well as the clock used to clock the core. This restore procedure is |
<> | 144:ef7eb2e8f9f7 | 593 | * handled by SW. However, since handled by SW, it will not be restored |
<> | 144:ef7eb2e8f9f7 | 594 | * before completing the interrupt function(s) waking up the core! |
<> | 144:ef7eb2e8f9f7 | 595 | * |
<> | 144:ef7eb2e8f9f7 | 596 | * @note |
<> | 144:ef7eb2e8f9f7 | 597 | * If restoring core clock to use an oscillator other than HFRCO, this |
<> | 144:ef7eb2e8f9f7 | 598 | * function will stall until the oscillator has stabilized. Stalling time |
<> | 144:ef7eb2e8f9f7 | 599 | * can be reduced by adding interrupt support detecting stable oscillator, |
<> | 144:ef7eb2e8f9f7 | 600 | * and an asynchronous switch to the original oscillator. See CMU |
<> | 144:ef7eb2e8f9f7 | 601 | * documentation. Such a feature is however outside the scope of the |
<> | 144:ef7eb2e8f9f7 | 602 | * implementation in this function. |
AnnaBridge | 179:b0033dcd6934 | 603 | * @note |
AnnaBridge | 179:b0033dcd6934 | 604 | * If ERRATA_FIX_EMU_E110_ENABLE is active, the core's SLEEPONEXIT feature |
AnnaBridge | 179:b0033dcd6934 | 605 | * can not be used. |
<> | 144:ef7eb2e8f9f7 | 606 | * @par |
<> | 144:ef7eb2e8f9f7 | 607 | * If HFXO/LFXO/LFRCO are re-enabled by this function, and NOT used to clock |
<> | 144:ef7eb2e8f9f7 | 608 | * the core, this function will not wait for those oscillators to stabilize. |
<> | 144:ef7eb2e8f9f7 | 609 | * This must be considered by the application if trying to use features |
<> | 144:ef7eb2e8f9f7 | 610 | * relying on those oscillators upon return. |
<> | 144:ef7eb2e8f9f7 | 611 | * @par |
<> | 144:ef7eb2e8f9f7 | 612 | * If a debugger is attached, the AUXHFRCO will not be disabled if enabled |
<> | 144:ef7eb2e8f9f7 | 613 | * upon entering EM3. It will thus remain enabled when returning to EM0 |
<> | 144:ef7eb2e8f9f7 | 614 | * regardless of the @p restore parameter. |
<> | 161:2cc1468da177 | 615 | * @par |
AnnaBridge | 179:b0033dcd6934 | 616 | * If voltage scaling is supported, the restore parameter is true and the EM0 |
AnnaBridge | 179:b0033dcd6934 | 617 | * voltage scaling level is set higher than the EM3 level, then the EM0 level is |
<> | 161:2cc1468da177 | 618 | * also restored. |
<> | 144:ef7eb2e8f9f7 | 619 | * |
<> | 144:ef7eb2e8f9f7 | 620 | * @param[in] restore |
AnnaBridge | 179:b0033dcd6934 | 621 | * @li true - save and restore oscillators, clocks and voltage scaling, see |
AnnaBridge | 179:b0033dcd6934 | 622 | * function details. |
AnnaBridge | 179:b0033dcd6934 | 623 | * @li false - do not save and restore oscillators and clocks, see function |
AnnaBridge | 179:b0033dcd6934 | 624 | * details. |
<> | 144:ef7eb2e8f9f7 | 625 | * @par |
<> | 144:ef7eb2e8f9f7 | 626 | * The @p restore option should only be used if all clock control is done |
<> | 144:ef7eb2e8f9f7 | 627 | * via the CMU API. |
<> | 144:ef7eb2e8f9f7 | 628 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 629 | void EMU_EnterEM3(bool restore) |
<> | 144:ef7eb2e8f9f7 | 630 | { |
<> | 144:ef7eb2e8f9f7 | 631 | uint32_t cmuLocked; |
<> | 144:ef7eb2e8f9f7 | 632 | |
AnnaBridge | 179:b0033dcd6934 | 633 | #if defined(ERRATA_FIX_EMU_E107_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 634 | bool errataFixEmuE107En; |
<> | 144:ef7eb2e8f9f7 | 635 | uint32_t nonWicIntEn[2]; |
<> | 144:ef7eb2e8f9f7 | 636 | #endif |
<> | 144:ef7eb2e8f9f7 | 637 | |
AnnaBridge | 179:b0033dcd6934 | 638 | /* Only save EMU and CMU state if restored on wake-up. */ |
AnnaBridge | 179:b0033dcd6934 | 639 | if (restore) { |
AnnaBridge | 179:b0033dcd6934 | 640 | emState(emState_Save); |
AnnaBridge | 179:b0033dcd6934 | 641 | } |
<> | 161:2cc1468da177 | 642 | |
AnnaBridge | 179:b0033dcd6934 | 643 | #if defined(_EMU_CTRL_EM23VSCALE_MASK) |
<> | 161:2cc1468da177 | 644 | vScaleDownEM23Setup(); |
<> | 144:ef7eb2e8f9f7 | 645 | #endif |
<> | 144:ef7eb2e8f9f7 | 646 | |
<> | 144:ef7eb2e8f9f7 | 647 | /* CMU registers may be locked */ |
<> | 144:ef7eb2e8f9f7 | 648 | cmuLocked = CMU->LOCK & CMU_LOCK_LOCKKEY_LOCKED; |
<> | 144:ef7eb2e8f9f7 | 649 | CMU_Unlock(); |
<> | 144:ef7eb2e8f9f7 | 650 | |
<> | 144:ef7eb2e8f9f7 | 651 | /* Disable LF oscillators */ |
<> | 144:ef7eb2e8f9f7 | 652 | CMU->OSCENCMD = CMU_OSCENCMD_LFXODIS | CMU_OSCENCMD_LFRCODIS; |
<> | 144:ef7eb2e8f9f7 | 653 | |
<> | 144:ef7eb2e8f9f7 | 654 | /* Restore CMU register locking */ |
AnnaBridge | 179:b0033dcd6934 | 655 | if (cmuLocked) { |
<> | 144:ef7eb2e8f9f7 | 656 | CMU_Lock(); |
<> | 144:ef7eb2e8f9f7 | 657 | } |
<> | 144:ef7eb2e8f9f7 | 658 | |
<> | 144:ef7eb2e8f9f7 | 659 | /* Enter Cortex deep sleep mode */ |
<> | 144:ef7eb2e8f9f7 | 660 | SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; |
<> | 144:ef7eb2e8f9f7 | 661 | |
<> | 144:ef7eb2e8f9f7 | 662 | /* Fix for errata EMU_E107 - store non-WIC interrupt enable flags. |
<> | 144:ef7eb2e8f9f7 | 663 | Disable the enabled non-WIC interrupts. */ |
AnnaBridge | 179:b0033dcd6934 | 664 | #if defined(ERRATA_FIX_EMU_E107_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 665 | errataFixEmuE107En = getErrataFixEmuE107En(); |
AnnaBridge | 179:b0033dcd6934 | 666 | if (errataFixEmuE107En) { |
<> | 144:ef7eb2e8f9f7 | 667 | nonWicIntEn[0] = NVIC->ISER[0] & NON_WIC_INT_MASK_0; |
<> | 144:ef7eb2e8f9f7 | 668 | NVIC->ICER[0] = nonWicIntEn[0]; |
<> | 144:ef7eb2e8f9f7 | 669 | #if (NON_WIC_INT_MASK_1 != (~(0x0U))) |
<> | 144:ef7eb2e8f9f7 | 670 | nonWicIntEn[1] = NVIC->ISER[1] & NON_WIC_INT_MASK_1; |
<> | 144:ef7eb2e8f9f7 | 671 | NVIC->ICER[1] = nonWicIntEn[1]; |
<> | 144:ef7eb2e8f9f7 | 672 | #endif |
<> | 144:ef7eb2e8f9f7 | 673 | } |
<> | 144:ef7eb2e8f9f7 | 674 | #endif |
<> | 144:ef7eb2e8f9f7 | 675 | |
AnnaBridge | 179:b0033dcd6934 | 676 | #if defined(ERRATA_FIX_DCDC_FETCNT_SET_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 677 | dcdcFetCntSet(true); |
<> | 150:02e0a0aed4ec | 678 | #endif |
AnnaBridge | 179:b0033dcd6934 | 679 | #if defined(ERRATA_FIX_DCDC_LNHS_BLOCK_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 680 | dcdcHsFixLnBlock(); |
<> | 144:ef7eb2e8f9f7 | 681 | #endif |
<> | 144:ef7eb2e8f9f7 | 682 | |
AnnaBridge | 179:b0033dcd6934 | 683 | #if defined(ERRATA_FIX_EMU_E110_ENABLE) |
AnnaBridge | 179:b0033dcd6934 | 684 | CORE_CRITICAL_SECTION(ramWFI(); ) |
AnnaBridge | 179:b0033dcd6934 | 685 | #else |
<> | 144:ef7eb2e8f9f7 | 686 | __WFI(); |
AnnaBridge | 179:b0033dcd6934 | 687 | #endif |
<> | 144:ef7eb2e8f9f7 | 688 | |
AnnaBridge | 179:b0033dcd6934 | 689 | #if defined(ERRATA_FIX_DCDC_FETCNT_SET_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 690 | dcdcFetCntSet(false); |
<> | 144:ef7eb2e8f9f7 | 691 | #endif |
<> | 144:ef7eb2e8f9f7 | 692 | |
<> | 144:ef7eb2e8f9f7 | 693 | /* Fix for errata EMU_E107 - restore state of non-WIC interrupt enable flags. */ |
AnnaBridge | 179:b0033dcd6934 | 694 | #if defined(ERRATA_FIX_EMU_E107_ENABLE) |
AnnaBridge | 179:b0033dcd6934 | 695 | if (errataFixEmuE107En) { |
<> | 144:ef7eb2e8f9f7 | 696 | NVIC->ISER[0] = nonWicIntEn[0]; |
<> | 144:ef7eb2e8f9f7 | 697 | #if (NON_WIC_INT_MASK_1 != (~(0x0U))) |
<> | 144:ef7eb2e8f9f7 | 698 | NVIC->ISER[1] = nonWicIntEn[1]; |
<> | 144:ef7eb2e8f9f7 | 699 | #endif |
<> | 144:ef7eb2e8f9f7 | 700 | } |
<> | 144:ef7eb2e8f9f7 | 701 | #endif |
<> | 144:ef7eb2e8f9f7 | 702 | |
<> | 161:2cc1468da177 | 703 | /* Restore oscillators/clocks and voltage scaling if supported. */ |
AnnaBridge | 179:b0033dcd6934 | 704 | if (restore) { |
<> | 161:2cc1468da177 | 705 | emState(emState_Restore); |
AnnaBridge | 179:b0033dcd6934 | 706 | } else { |
<> | 161:2cc1468da177 | 707 | /* If not restoring, and original clock was not HFRCO, we have to */ |
<> | 161:2cc1468da177 | 708 | /* update CMSIS core clock variable since HF clock has changed */ |
<> | 161:2cc1468da177 | 709 | /* to HFRCO. */ |
<> | 144:ef7eb2e8f9f7 | 710 | SystemCoreClockUpdate(); |
<> | 144:ef7eb2e8f9f7 | 711 | } |
<> | 144:ef7eb2e8f9f7 | 712 | } |
<> | 144:ef7eb2e8f9f7 | 713 | |
AnnaBridge | 179:b0033dcd6934 | 714 | /***************************************************************************//** |
AnnaBridge | 179:b0033dcd6934 | 715 | * @brief |
AnnaBridge | 179:b0033dcd6934 | 716 | * Save CMU HF clock select state, oscillator enable and voltage scaling |
AnnaBridge | 179:b0033dcd6934 | 717 | * (if available) before @ref EMU_EnterEM2() or @ref EMU_EnterEM3() are called |
AnnaBridge | 179:b0033dcd6934 | 718 | * with the restore parameter set to false. Calling this function is |
AnnaBridge | 179:b0033dcd6934 | 719 | * equivalent to calling @ref EMU_EnterEM2() or @ref EMU_EnterEM3() with the |
AnnaBridge | 179:b0033dcd6934 | 720 | * restore parameter set to true, but it allows the state to be saved without |
AnnaBridge | 179:b0033dcd6934 | 721 | * going to sleep. The state can be restored manually by calling |
AnnaBridge | 179:b0033dcd6934 | 722 | * @ref EMU_Restore(). |
AnnaBridge | 179:b0033dcd6934 | 723 | ******************************************************************************/ |
AnnaBridge | 179:b0033dcd6934 | 724 | void EMU_Save(void) |
AnnaBridge | 179:b0033dcd6934 | 725 | { |
AnnaBridge | 179:b0033dcd6934 | 726 | emState(emState_Save); |
AnnaBridge | 179:b0033dcd6934 | 727 | } |
<> | 144:ef7eb2e8f9f7 | 728 | |
<> | 144:ef7eb2e8f9f7 | 729 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 730 | * @brief |
AnnaBridge | 179:b0033dcd6934 | 731 | * Restore CMU HF clock select state, oscillator enable and voltage scaling |
AnnaBridge | 179:b0033dcd6934 | 732 | * (if available) after @ref EMU_EnterEM2() or @ref EMU_EnterEM3() are called |
<> | 161:2cc1468da177 | 733 | * with the restore parameter set to false. Calling this function is |
AnnaBridge | 179:b0033dcd6934 | 734 | * equivalent to calling @ref EMU_EnterEM2() or @ref EMU_EnterEM3() with the |
<> | 161:2cc1468da177 | 735 | * restore parameter set to true, but it allows the application to evaluate the |
<> | 161:2cc1468da177 | 736 | * wakeup reason before restoring state. |
<> | 161:2cc1468da177 | 737 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 738 | void EMU_Restore(void) |
<> | 161:2cc1468da177 | 739 | { |
<> | 161:2cc1468da177 | 740 | emState(emState_Restore); |
<> | 161:2cc1468da177 | 741 | } |
<> | 161:2cc1468da177 | 742 | |
<> | 161:2cc1468da177 | 743 | /***************************************************************************//** |
<> | 161:2cc1468da177 | 744 | * @brief |
<> | 144:ef7eb2e8f9f7 | 745 | * Enter energy mode 4 (EM4). |
<> | 144:ef7eb2e8f9f7 | 746 | * |
<> | 144:ef7eb2e8f9f7 | 747 | * @note |
<> | 144:ef7eb2e8f9f7 | 748 | * Only a power on reset or external reset pin can wake the device from EM4. |
<> | 144:ef7eb2e8f9f7 | 749 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 750 | void EMU_EnterEM4(void) |
<> | 144:ef7eb2e8f9f7 | 751 | { |
<> | 144:ef7eb2e8f9f7 | 752 | int i; |
<> | 144:ef7eb2e8f9f7 | 753 | |
AnnaBridge | 179:b0033dcd6934 | 754 | #if defined(_EMU_EM4CTRL_EM4ENTRY_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 755 | uint32_t em4seq2 = (EMU->EM4CTRL & ~_EMU_EM4CTRL_EM4ENTRY_MASK) |
<> | 144:ef7eb2e8f9f7 | 756 | | (2 << _EMU_EM4CTRL_EM4ENTRY_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 757 | uint32_t em4seq3 = (EMU->EM4CTRL & ~_EMU_EM4CTRL_EM4ENTRY_MASK) |
<> | 144:ef7eb2e8f9f7 | 758 | | (3 << _EMU_EM4CTRL_EM4ENTRY_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 759 | #else |
<> | 144:ef7eb2e8f9f7 | 760 | uint32_t em4seq2 = (EMU->CTRL & ~_EMU_CTRL_EM4CTRL_MASK) |
<> | 144:ef7eb2e8f9f7 | 761 | | (2 << _EMU_CTRL_EM4CTRL_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 762 | uint32_t em4seq3 = (EMU->CTRL & ~_EMU_CTRL_EM4CTRL_MASK) |
<> | 144:ef7eb2e8f9f7 | 763 | | (3 << _EMU_CTRL_EM4CTRL_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 764 | #endif |
<> | 144:ef7eb2e8f9f7 | 765 | |
<> | 144:ef7eb2e8f9f7 | 766 | /* Make sure register write lock is disabled */ |
<> | 144:ef7eb2e8f9f7 | 767 | EMU_Unlock(); |
<> | 144:ef7eb2e8f9f7 | 768 | |
AnnaBridge | 179:b0033dcd6934 | 769 | #if defined(_EMU_EM4CTRL_MASK) |
AnnaBridge | 179:b0033dcd6934 | 770 | if ((EMU->EM4CTRL & _EMU_EM4CTRL_EM4STATE_MASK) == EMU_EM4CTRL_EM4STATE_EM4S) { |
<> | 150:02e0a0aed4ec | 771 | uint32_t dcdcMode = EMU->DCDCCTRL & _EMU_DCDCCTRL_DCDCMODE_MASK; |
<> | 150:02e0a0aed4ec | 772 | if (dcdcMode == EMU_DCDCCTRL_DCDCMODE_LOWNOISE |
AnnaBridge | 179:b0033dcd6934 | 773 | || dcdcMode == EMU_DCDCCTRL_DCDCMODE_LOWPOWER) { |
<> | 150:02e0a0aed4ec | 774 | /* DCDC is not supported in EM4S so we switch DCDC to bypass mode before |
<> | 150:02e0a0aed4ec | 775 | * entering EM4S */ |
<> | 150:02e0a0aed4ec | 776 | EMU_DCDCModeSet(emuDcdcMode_Bypass); |
<> | 150:02e0a0aed4ec | 777 | } |
<> | 150:02e0a0aed4ec | 778 | } |
<> | 150:02e0a0aed4ec | 779 | #endif |
<> | 150:02e0a0aed4ec | 780 | |
AnnaBridge | 179:b0033dcd6934 | 781 | #if defined(_EMU_EM4CTRL_MASK) && defined(ERRATA_FIX_EMU_E208_ENABLE) |
AnnaBridge | 179:b0033dcd6934 | 782 | if (EMU->EM4CTRL & EMU_EM4CTRL_EM4STATE_EM4H) { |
<> | 150:02e0a0aed4ec | 783 | /* Fix for errata EMU_E208 - Occasional Full Reset After Exiting EM4H. |
<> | 150:02e0a0aed4ec | 784 | * Full description of errata fix can be found in the errata document. */ |
<> | 150:02e0a0aed4ec | 785 | __disable_irq(); |
<> | 150:02e0a0aed4ec | 786 | *(volatile uint32_t *)(EMU_BASE + 0x190) = 0x0000ADE8UL; |
<> | 150:02e0a0aed4ec | 787 | *(volatile uint32_t *)(EMU_BASE + 0x198) |= (0x1UL << 7); |
<> | 150:02e0a0aed4ec | 788 | *(volatile uint32_t *)(EMU_BASE + 0x88) |= (0x1UL << 8); |
<> | 150:02e0a0aed4ec | 789 | } |
<> | 150:02e0a0aed4ec | 790 | #endif |
<> | 150:02e0a0aed4ec | 791 | |
AnnaBridge | 179:b0033dcd6934 | 792 | #if defined(ERRATA_FIX_EMU_E108_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 793 | /* Fix for errata EMU_E108 - High Current Consumption on EM4 Entry. */ |
<> | 144:ef7eb2e8f9f7 | 794 | __disable_irq(); |
<> | 144:ef7eb2e8f9f7 | 795 | *(volatile uint32_t *)0x400C80E4 = 0; |
<> | 144:ef7eb2e8f9f7 | 796 | #endif |
<> | 144:ef7eb2e8f9f7 | 797 | |
AnnaBridge | 179:b0033dcd6934 | 798 | #if defined(ERRATA_FIX_DCDC_FETCNT_SET_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 799 | dcdcFetCntSet(true); |
<> | 150:02e0a0aed4ec | 800 | #endif |
AnnaBridge | 179:b0033dcd6934 | 801 | #if defined(ERRATA_FIX_DCDC_LNHS_BLOCK_ENABLE) |
<> | 144:ef7eb2e8f9f7 | 802 | dcdcHsFixLnBlock(); |
<> | 144:ef7eb2e8f9f7 | 803 | #endif |
<> | 144:ef7eb2e8f9f7 | 804 | |
AnnaBridge | 179:b0033dcd6934 | 805 | for (i = 0; i < 4; i++) { |
AnnaBridge | 179:b0033dcd6934 | 806 | #if defined(_EMU_EM4CTRL_EM4ENTRY_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 807 | EMU->EM4CTRL = em4seq2; |
<> | 144:ef7eb2e8f9f7 | 808 | EMU->EM4CTRL = em4seq3; |
<> | 144:ef7eb2e8f9f7 | 809 | } |
<> | 144:ef7eb2e8f9f7 | 810 | EMU->EM4CTRL = em4seq2; |
<> | 144:ef7eb2e8f9f7 | 811 | #else |
<> | 144:ef7eb2e8f9f7 | 812 | EMU->CTRL = em4seq2; |
<> | 144:ef7eb2e8f9f7 | 813 | EMU->CTRL = em4seq3; |
<> | 144:ef7eb2e8f9f7 | 814 | } |
<> | 144:ef7eb2e8f9f7 | 815 | EMU->CTRL = em4seq2; |
<> | 144:ef7eb2e8f9f7 | 816 | #endif |
<> | 144:ef7eb2e8f9f7 | 817 | } |
<> | 144:ef7eb2e8f9f7 | 818 | |
AnnaBridge | 179:b0033dcd6934 | 819 | #if defined(_EMU_EM4CTRL_MASK) |
<> | 150:02e0a0aed4ec | 820 | /***************************************************************************//** |
<> | 150:02e0a0aed4ec | 821 | * @brief |
<> | 150:02e0a0aed4ec | 822 | * Enter energy mode 4 hibernate (EM4H). |
<> | 150:02e0a0aed4ec | 823 | * |
<> | 150:02e0a0aed4ec | 824 | * @note |
<> | 150:02e0a0aed4ec | 825 | * Retention of clocks and GPIO in EM4 can be configured using |
<> | 150:02e0a0aed4ec | 826 | * @ref EMU_EM4Init before calling this function. |
<> | 150:02e0a0aed4ec | 827 | ******************************************************************************/ |
<> | 150:02e0a0aed4ec | 828 | void EMU_EnterEM4H(void) |
<> | 150:02e0a0aed4ec | 829 | { |
<> | 150:02e0a0aed4ec | 830 | BUS_RegBitWrite(&EMU->EM4CTRL, _EMU_EM4CTRL_EM4STATE_SHIFT, 1); |
<> | 150:02e0a0aed4ec | 831 | EMU_EnterEM4(); |
<> | 150:02e0a0aed4ec | 832 | } |
<> | 150:02e0a0aed4ec | 833 | |
<> | 150:02e0a0aed4ec | 834 | /***************************************************************************//** |
<> | 150:02e0a0aed4ec | 835 | * @brief |
<> | 150:02e0a0aed4ec | 836 | * Enter energy mode 4 shutoff (EM4S). |
<> | 150:02e0a0aed4ec | 837 | * |
<> | 150:02e0a0aed4ec | 838 | * @note |
<> | 150:02e0a0aed4ec | 839 | * Retention of clocks and GPIO in EM4 can be configured using |
<> | 150:02e0a0aed4ec | 840 | * @ref EMU_EM4Init before calling this function. |
<> | 150:02e0a0aed4ec | 841 | ******************************************************************************/ |
<> | 150:02e0a0aed4ec | 842 | void EMU_EnterEM4S(void) |
<> | 150:02e0a0aed4ec | 843 | { |
<> | 150:02e0a0aed4ec | 844 | BUS_RegBitWrite(&EMU->EM4CTRL, _EMU_EM4CTRL_EM4STATE_SHIFT, 0); |
<> | 150:02e0a0aed4ec | 845 | EMU_EnterEM4(); |
<> | 150:02e0a0aed4ec | 846 | } |
<> | 150:02e0a0aed4ec | 847 | #endif |
<> | 144:ef7eb2e8f9f7 | 848 | |
<> | 144:ef7eb2e8f9f7 | 849 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 850 | * @brief |
<> | 144:ef7eb2e8f9f7 | 851 | * Power down memory block. |
<> | 144:ef7eb2e8f9f7 | 852 | * |
<> | 144:ef7eb2e8f9f7 | 853 | * @param[in] blocks |
<> | 144:ef7eb2e8f9f7 | 854 | * Specifies a logical OR of bits indicating memory blocks to power down. |
<> | 144:ef7eb2e8f9f7 | 855 | * Bit 0 selects block 1, bit 1 selects block 2, etc. Memory block 0 cannot |
<> | 144:ef7eb2e8f9f7 | 856 | * be disabled. Please refer to the reference manual for available |
<> | 144:ef7eb2e8f9f7 | 857 | * memory blocks for a device. |
<> | 144:ef7eb2e8f9f7 | 858 | * |
<> | 144:ef7eb2e8f9f7 | 859 | * @note |
<> | 161:2cc1468da177 | 860 | * Only a POR reset can power up the specified memory block(s) after powerdown. |
<> | 161:2cc1468da177 | 861 | * |
<> | 161:2cc1468da177 | 862 | * @deprecated |
<> | 161:2cc1468da177 | 863 | * This function is deprecated, use @ref EMU_RamPowerDown() instead which |
<> | 161:2cc1468da177 | 864 | * maps a user provided memory range into RAM blocks to power down. |
<> | 144:ef7eb2e8f9f7 | 865 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 866 | void EMU_MemPwrDown(uint32_t blocks) |
<> | 144:ef7eb2e8f9f7 | 867 | { |
AnnaBridge | 179:b0033dcd6934 | 868 | #if defined(_EMU_MEMCTRL_MASK) |
<> | 161:2cc1468da177 | 869 | EMU->MEMCTRL = blocks & _EMU_MEMCTRL_MASK; |
AnnaBridge | 179:b0033dcd6934 | 870 | #elif defined(_EMU_RAM0CTRL_MASK) |
<> | 161:2cc1468da177 | 871 | EMU->RAM0CTRL = blocks & _EMU_RAM0CTRL_MASK; |
<> | 144:ef7eb2e8f9f7 | 872 | #else |
<> | 144:ef7eb2e8f9f7 | 873 | (void)blocks; |
<> | 144:ef7eb2e8f9f7 | 874 | #endif |
<> | 144:ef7eb2e8f9f7 | 875 | } |
<> | 144:ef7eb2e8f9f7 | 876 | |
<> | 161:2cc1468da177 | 877 | /***************************************************************************//** |
<> | 161:2cc1468da177 | 878 | * @brief |
<> | 161:2cc1468da177 | 879 | * Power down RAM memory blocks. |
<> | 161:2cc1468da177 | 880 | * |
<> | 161:2cc1468da177 | 881 | * @details |
<> | 161:2cc1468da177 | 882 | * This function will power down all the RAM blocks that are within a given |
<> | 161:2cc1468da177 | 883 | * range. The RAM block layout is different between device families, so this |
<> | 161:2cc1468da177 | 884 | * function can be used in a generic way to power down a RAM memory region |
<> | 161:2cc1468da177 | 885 | * which is known to be unused. |
<> | 161:2cc1468da177 | 886 | * |
<> | 161:2cc1468da177 | 887 | * This function will only power down blocks which are completely enclosed |
<> | 161:2cc1468da177 | 888 | * by the memory range given by [start, end). |
<> | 161:2cc1468da177 | 889 | * |
<> | 161:2cc1468da177 | 890 | * Here is an example of how to power down all RAM blocks except the first |
<> | 161:2cc1468da177 | 891 | * one. The first RAM block is special in that it cannot be powered down |
<> | 161:2cc1468da177 | 892 | * by the hardware. The size of this first RAM block is device specific |
<> | 161:2cc1468da177 | 893 | * see the reference manual to find the RAM block sizes. |
<> | 161:2cc1468da177 | 894 | * |
<> | 161:2cc1468da177 | 895 | * @code |
<> | 161:2cc1468da177 | 896 | * EMU_RamPowerDown(SRAM_BASE, SRAM_BASE + SRAM_SIZE); |
<> | 161:2cc1468da177 | 897 | * @endcode |
<> | 161:2cc1468da177 | 898 | * |
<> | 161:2cc1468da177 | 899 | * @note |
<> | 161:2cc1468da177 | 900 | * Only a POR reset can power up the specified memory block(s) after powerdown. |
<> | 161:2cc1468da177 | 901 | * |
<> | 161:2cc1468da177 | 902 | * @param[in] start |
<> | 161:2cc1468da177 | 903 | * The start address of the RAM region to power down. This address is |
<> | 161:2cc1468da177 | 904 | * inclusive. |
<> | 161:2cc1468da177 | 905 | * |
<> | 161:2cc1468da177 | 906 | * @param[in] end |
<> | 161:2cc1468da177 | 907 | * The end address of the RAM region to power down. This address is |
<> | 161:2cc1468da177 | 908 | * exclusive. If this parameter is 0, then all RAM blocks contained in the |
<> | 161:2cc1468da177 | 909 | * region from start to the upper RAM address will be powered down. |
<> | 161:2cc1468da177 | 910 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 911 | void EMU_RamPowerDown(uint32_t start, uint32_t end) |
<> | 161:2cc1468da177 | 912 | { |
<> | 161:2cc1468da177 | 913 | uint32_t mask = 0; |
<> | 161:2cc1468da177 | 914 | |
AnnaBridge | 179:b0033dcd6934 | 915 | if (end == 0) { |
<> | 161:2cc1468da177 | 916 | end = SRAM_BASE + SRAM_SIZE; |
<> | 161:2cc1468da177 | 917 | } |
<> | 161:2cc1468da177 | 918 | |
<> | 161:2cc1468da177 | 919 | // Check to see if something in RAM0 can be powered down |
AnnaBridge | 179:b0033dcd6934 | 920 | if (end > RAM0_END) { |
<> | 161:2cc1468da177 | 921 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_84) // EFM32xG12 and EFR32xG12 |
<> | 161:2cc1468da177 | 922 | // Block 0 is 16 kB and cannot be powered off |
<> | 161:2cc1468da177 | 923 | mask |= ADDRESS_NOT_IN_BLOCK(start, 0x20004000) << 0; // Block 1, 16 kB |
<> | 161:2cc1468da177 | 924 | mask |= ADDRESS_NOT_IN_BLOCK(start, 0x20008000) << 1; // Block 2, 16 kB |
<> | 161:2cc1468da177 | 925 | mask |= ADDRESS_NOT_IN_BLOCK(start, 0x2000C000) << 2; // Block 3, 16 kB |
<> | 161:2cc1468da177 | 926 | mask |= ADDRESS_NOT_IN_BLOCK(start, 0x20010000) << 3; // Block 4, 64 kB |
<> | 161:2cc1468da177 | 927 | #elif defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) // EFM32xG1 and EFR32xG1 |
<> | 161:2cc1468da177 | 928 | // Block 0 is 4 kB and cannot be powered off |
<> | 161:2cc1468da177 | 929 | mask |= ADDRESS_NOT_IN_BLOCK(start, 0x20001000) << 0; // Block 1, 4 kB |
<> | 161:2cc1468da177 | 930 | mask |= ADDRESS_NOT_IN_BLOCK(start, 0x20002000) << 1; // Block 2, 8 kB |
<> | 161:2cc1468da177 | 931 | mask |= ADDRESS_NOT_IN_BLOCK(start, 0x20004000) << 2; // Block 3, 8 kB |
<> | 161:2cc1468da177 | 932 | mask |= ADDRESS_NOT_IN_BLOCK(start, 0x20006000) << 3; // Block 4, 7 kB |
<> | 161:2cc1468da177 | 933 | #elif defined(RAM0_BLOCKS) |
<> | 161:2cc1468da177 | 934 | // These platforms have equally sized RAM blocks |
AnnaBridge | 179:b0033dcd6934 | 935 | for (int i = 1; i < RAM0_BLOCKS; i++) { |
<> | 161:2cc1468da177 | 936 | mask |= ADDRESS_NOT_IN_BLOCK(start, RAM_MEM_BASE + (i * RAM0_BLOCK_SIZE)) << (i - 1); |
<> | 161:2cc1468da177 | 937 | } |
<> | 161:2cc1468da177 | 938 | #endif |
<> | 161:2cc1468da177 | 939 | } |
<> | 161:2cc1468da177 | 940 | |
<> | 161:2cc1468da177 | 941 | // Power down the selected blocks |
AnnaBridge | 179:b0033dcd6934 | 942 | #if defined(_EMU_MEMCTRL_MASK) |
<> | 161:2cc1468da177 | 943 | EMU->MEMCTRL = EMU->MEMCTRL | mask; |
AnnaBridge | 179:b0033dcd6934 | 944 | #elif defined(_EMU_RAM0CTRL_MASK) |
<> | 161:2cc1468da177 | 945 | EMU->RAM0CTRL = EMU->RAM0CTRL | mask; |
<> | 161:2cc1468da177 | 946 | #else |
<> | 161:2cc1468da177 | 947 | // These devices are unable to power down RAM blocks |
<> | 161:2cc1468da177 | 948 | (void) mask; |
<> | 161:2cc1468da177 | 949 | (void) start; |
<> | 161:2cc1468da177 | 950 | #endif |
<> | 161:2cc1468da177 | 951 | |
<> | 161:2cc1468da177 | 952 | #if defined(RAM1_MEM_END) |
<> | 161:2cc1468da177 | 953 | mask = 0; |
AnnaBridge | 179:b0033dcd6934 | 954 | if (end > RAM1_MEM_END) { |
AnnaBridge | 179:b0033dcd6934 | 955 | for (int i = 0; i < RAM1_BLOCKS; i++) { |
<> | 161:2cc1468da177 | 956 | mask |= ADDRESS_NOT_IN_BLOCK(start, RAM1_MEM_BASE + (i * RAM1_BLOCK_SIZE)) << i; |
<> | 161:2cc1468da177 | 957 | } |
<> | 161:2cc1468da177 | 958 | } |
<> | 161:2cc1468da177 | 959 | EMU->RAM1CTRL |= mask; |
<> | 161:2cc1468da177 | 960 | #endif |
AnnaBridge | 179:b0033dcd6934 | 961 | |
AnnaBridge | 179:b0033dcd6934 | 962 | #if defined(RAM2_MEM_END) |
AnnaBridge | 179:b0033dcd6934 | 963 | mask = 0; |
AnnaBridge | 179:b0033dcd6934 | 964 | if (end > RAM2_MEM_END) { |
AnnaBridge | 179:b0033dcd6934 | 965 | for (int i = 0; i < RAM2_BLOCKS; i++) { |
AnnaBridge | 179:b0033dcd6934 | 966 | mask |= ADDRESS_NOT_IN_BLOCK(start, RAM2_MEM_BASE + (i * RAM2_BLOCK_SIZE)) << i; |
AnnaBridge | 179:b0033dcd6934 | 967 | } |
AnnaBridge | 179:b0033dcd6934 | 968 | } |
AnnaBridge | 179:b0033dcd6934 | 969 | EMU->RAM2CTRL |= mask; |
AnnaBridge | 179:b0033dcd6934 | 970 | #endif |
<> | 161:2cc1468da177 | 971 | } |
<> | 161:2cc1468da177 | 972 | |
<> | 161:2cc1468da177 | 973 | #if defined(_EMU_EM23PERNORETAINCTRL_MASK) |
<> | 161:2cc1468da177 | 974 | /***************************************************************************//** |
<> | 161:2cc1468da177 | 975 | * @brief |
<> | 161:2cc1468da177 | 976 | * Set EM2 3 peripheral retention control. |
<> | 161:2cc1468da177 | 977 | * |
<> | 161:2cc1468da177 | 978 | * @param[in] periMask |
<> | 161:2cc1468da177 | 979 | * Peripheral select mask. Use | operator to select multiple peripheral, for example |
<> | 161:2cc1468da177 | 980 | * @ref emuPeripheralRetention_LEUART0 | @ref emuPeripheralRetention_VDAC0. |
<> | 161:2cc1468da177 | 981 | * @param[in] enable |
<> | 161:2cc1468da177 | 982 | * Peripheral retention enable (true) or disable (false). |
<> | 161:2cc1468da177 | 983 | * |
<> | 161:2cc1468da177 | 984 | * |
<> | 161:2cc1468da177 | 985 | * @note |
<> | 161:2cc1468da177 | 986 | * Only peripheral retention disable is currently supported. Peripherals are |
<> | 161:2cc1468da177 | 987 | * enabled by default, and can only be disabled. |
<> | 161:2cc1468da177 | 988 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 989 | void EMU_PeripheralRetention(EMU_PeripheralRetention_TypeDef periMask, bool enable) |
<> | 161:2cc1468da177 | 990 | { |
<> | 161:2cc1468da177 | 991 | EFM_ASSERT(!enable); |
<> | 161:2cc1468da177 | 992 | EMU->EM23PERNORETAINCTRL = periMask & emuPeripheralRetention_ALL; |
<> | 161:2cc1468da177 | 993 | } |
<> | 161:2cc1468da177 | 994 | #endif |
<> | 161:2cc1468da177 | 995 | |
<> | 144:ef7eb2e8f9f7 | 996 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 997 | * @brief |
<> | 144:ef7eb2e8f9f7 | 998 | * Update EMU module with CMU oscillator selection/enable status. |
<> | 144:ef7eb2e8f9f7 | 999 | * |
<> | 161:2cc1468da177 | 1000 | * @deprecated |
<> | 161:2cc1468da177 | 1001 | * Oscillator status is saved in @ref EMU_EnterEM2() and @ref EMU_EnterEM3(). |
<> | 144:ef7eb2e8f9f7 | 1002 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 1003 | void EMU_UpdateOscConfig(void) |
<> | 144:ef7eb2e8f9f7 | 1004 | { |
<> | 161:2cc1468da177 | 1005 | emState(emState_Save); |
<> | 161:2cc1468da177 | 1006 | } |
<> | 161:2cc1468da177 | 1007 | |
AnnaBridge | 179:b0033dcd6934 | 1008 | #if defined(_EMU_CMD_EM01VSCALE0_MASK) |
<> | 161:2cc1468da177 | 1009 | /***************************************************************************//** |
<> | 161:2cc1468da177 | 1010 | * @brief |
<> | 161:2cc1468da177 | 1011 | * Voltage scale in EM0 and 1 by clock frequency. |
<> | 161:2cc1468da177 | 1012 | * |
<> | 161:2cc1468da177 | 1013 | * @param[in] clockFrequency |
<> | 161:2cc1468da177 | 1014 | * Use CMSIS HF clock if 0, or override to custom clock. Providing a |
<> | 161:2cc1468da177 | 1015 | * custom clock frequency is required if using a non-standard HFXO |
<> | 161:2cc1468da177 | 1016 | * frequency. |
<> | 161:2cc1468da177 | 1017 | * @param[in] wait |
AnnaBridge | 179:b0033dcd6934 | 1018 | * Wait for scaling to complete. |
<> | 161:2cc1468da177 | 1019 | * |
<> | 161:2cc1468da177 | 1020 | * @note |
AnnaBridge | 179:b0033dcd6934 | 1021 | * This function is primarily needed by the @ref CMU module. |
<> | 161:2cc1468da177 | 1022 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1023 | void EMU_VScaleEM01ByClock(uint32_t clockFrequency, bool wait) |
<> | 161:2cc1468da177 | 1024 | { |
<> | 161:2cc1468da177 | 1025 | uint32_t hfSrcClockFrequency; |
<> | 161:2cc1468da177 | 1026 | uint32_t hfPresc = 1U + ((CMU->HFPRESC & _CMU_HFPRESC_PRESC_MASK) |
<> | 161:2cc1468da177 | 1027 | >> _CMU_HFPRESC_PRESC_SHIFT); |
<> | 161:2cc1468da177 | 1028 | |
<> | 161:2cc1468da177 | 1029 | /* VSCALE frequency is HFSRCCLK */ |
AnnaBridge | 179:b0033dcd6934 | 1030 | if (clockFrequency == 0) { |
<> | 161:2cc1468da177 | 1031 | hfSrcClockFrequency = SystemHFClockGet() * hfPresc; |
AnnaBridge | 179:b0033dcd6934 | 1032 | } else { |
<> | 161:2cc1468da177 | 1033 | hfSrcClockFrequency = clockFrequency; |
<> | 161:2cc1468da177 | 1034 | } |
<> | 161:2cc1468da177 | 1035 | |
<> | 161:2cc1468da177 | 1036 | /* Apply EM0 and 1 voltage scaling command. */ |
<> | 161:2cc1468da177 | 1037 | if (vScaleEM01Config.vScaleEM01LowPowerVoltageEnable |
AnnaBridge | 179:b0033dcd6934 | 1038 | && (hfSrcClockFrequency < CMU_VSCALEEM01_LOWPOWER_VOLTAGE_CLOCK_MAX)) { |
AnnaBridge | 179:b0033dcd6934 | 1039 | EMU_VScaleEM01(emuVScaleEM01_LowPower, wait); |
AnnaBridge | 179:b0033dcd6934 | 1040 | } else { |
AnnaBridge | 179:b0033dcd6934 | 1041 | EMU_VScaleEM01(emuVScaleEM01_HighPerformance, wait); |
<> | 161:2cc1468da177 | 1042 | } |
<> | 161:2cc1468da177 | 1043 | } |
<> | 144:ef7eb2e8f9f7 | 1044 | #endif |
<> | 161:2cc1468da177 | 1045 | |
AnnaBridge | 179:b0033dcd6934 | 1046 | #if defined(_EMU_CMD_EM01VSCALE0_MASK) |
<> | 161:2cc1468da177 | 1047 | /***************************************************************************//** |
<> | 161:2cc1468da177 | 1048 | * @brief |
<> | 161:2cc1468da177 | 1049 | * Force voltage scaling in EM0 and 1 to a specific voltage level. |
<> | 161:2cc1468da177 | 1050 | * |
<> | 161:2cc1468da177 | 1051 | * @param[in] voltage |
<> | 161:2cc1468da177 | 1052 | * Target VSCALE voltage level. |
<> | 161:2cc1468da177 | 1053 | * @param[in] wait |
<> | 161:2cc1468da177 | 1054 | * Wait for scaling to complate. |
<> | 161:2cc1468da177 | 1055 | * |
<> | 161:2cc1468da177 | 1056 | * @note |
<> | 161:2cc1468da177 | 1057 | * This function is useful for upscaling before programming Flash from @ref MSC, |
<> | 161:2cc1468da177 | 1058 | * and downscaling after programming is done. Flash programming is only supported |
<> | 161:2cc1468da177 | 1059 | * at @ref emuVScaleEM01_HighPerformance. |
<> | 161:2cc1468da177 | 1060 | * |
<> | 161:2cc1468da177 | 1061 | * @note |
<> | 161:2cc1468da177 | 1062 | * This function ignores @ref vScaleEM01LowPowerVoltageEnable set from @ref |
<> | 161:2cc1468da177 | 1063 | * EMU_EM01Init(). |
<> | 161:2cc1468da177 | 1064 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1065 | void EMU_VScaleEM01(EMU_VScaleEM01_TypeDef voltage, bool wait) |
<> | 161:2cc1468da177 | 1066 | { |
<> | 161:2cc1468da177 | 1067 | uint32_t hfSrcClockFrequency; |
<> | 161:2cc1468da177 | 1068 | uint32_t hfPresc = 1U + ((CMU->HFPRESC & _CMU_HFPRESC_PRESC_MASK) |
<> | 161:2cc1468da177 | 1069 | >> _CMU_HFPRESC_PRESC_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 1070 | uint32_t hfFreq = SystemHFClockGet(); |
AnnaBridge | 179:b0033dcd6934 | 1071 | EMU_VScaleEM01_TypeDef current = EMU_VScaleGet(); |
<> | 161:2cc1468da177 | 1072 | |
AnnaBridge | 179:b0033dcd6934 | 1073 | if (current == voltage) { |
AnnaBridge | 179:b0033dcd6934 | 1074 | /* Voltage is already at correct level. */ |
AnnaBridge | 179:b0033dcd6934 | 1075 | return; |
AnnaBridge | 179:b0033dcd6934 | 1076 | } |
AnnaBridge | 179:b0033dcd6934 | 1077 | |
AnnaBridge | 179:b0033dcd6934 | 1078 | hfSrcClockFrequency = hfFreq * hfPresc; |
AnnaBridge | 179:b0033dcd6934 | 1079 | |
AnnaBridge | 179:b0033dcd6934 | 1080 | if (voltage == emuVScaleEM01_LowPower) { |
<> | 161:2cc1468da177 | 1081 | EFM_ASSERT(hfSrcClockFrequency <= CMU_VSCALEEM01_LOWPOWER_VOLTAGE_CLOCK_MAX); |
AnnaBridge | 179:b0033dcd6934 | 1082 | /* Update wait states before scaling down voltage */ |
AnnaBridge | 179:b0033dcd6934 | 1083 | CMU_UpdateWaitStates(hfFreq, emuVScaleEM01_LowPower); |
<> | 161:2cc1468da177 | 1084 | } |
<> | 161:2cc1468da177 | 1085 | |
<> | 161:2cc1468da177 | 1086 | EMU->CMD = vScaleEM01Cmd(voltage); |
AnnaBridge | 179:b0033dcd6934 | 1087 | |
AnnaBridge | 179:b0033dcd6934 | 1088 | if (voltage == emuVScaleEM01_HighPerformance) { |
AnnaBridge | 179:b0033dcd6934 | 1089 | /* Update wait states after scaling up voltage */ |
AnnaBridge | 179:b0033dcd6934 | 1090 | CMU_UpdateWaitStates(hfFreq, emuVScaleEM01_HighPerformance); |
AnnaBridge | 179:b0033dcd6934 | 1091 | } |
AnnaBridge | 179:b0033dcd6934 | 1092 | |
AnnaBridge | 179:b0033dcd6934 | 1093 | if (wait) { |
<> | 161:2cc1468da177 | 1094 | EMU_VScaleWait(); |
<> | 161:2cc1468da177 | 1095 | } |
<> | 144:ef7eb2e8f9f7 | 1096 | } |
<> | 161:2cc1468da177 | 1097 | #endif |
<> | 161:2cc1468da177 | 1098 | |
AnnaBridge | 179:b0033dcd6934 | 1099 | #if defined(_EMU_CMD_EM01VSCALE0_MASK) |
<> | 161:2cc1468da177 | 1100 | /***************************************************************************//** |
<> | 161:2cc1468da177 | 1101 | * @brief |
<> | 161:2cc1468da177 | 1102 | * Update EMU module with Energy Mode 0 and 1 configuration |
<> | 161:2cc1468da177 | 1103 | * |
<> | 161:2cc1468da177 | 1104 | * @param[in] em01Init |
<> | 161:2cc1468da177 | 1105 | * Energy Mode 0 and 1 configuration structure |
<> | 161:2cc1468da177 | 1106 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1107 | void EMU_EM01Init(const EMU_EM01Init_TypeDef *em01Init) |
<> | 161:2cc1468da177 | 1108 | { |
<> | 161:2cc1468da177 | 1109 | vScaleEM01Config.vScaleEM01LowPowerVoltageEnable = |
<> | 161:2cc1468da177 | 1110 | em01Init->vScaleEM01LowPowerVoltageEnable; |
<> | 161:2cc1468da177 | 1111 | EMU_VScaleEM01ByClock(0, true); |
<> | 161:2cc1468da177 | 1112 | } |
<> | 161:2cc1468da177 | 1113 | #endif |
<> | 144:ef7eb2e8f9f7 | 1114 | |
<> | 144:ef7eb2e8f9f7 | 1115 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1116 | * @brief |
<> | 144:ef7eb2e8f9f7 | 1117 | * Update EMU module with Energy Mode 2 and 3 configuration |
<> | 144:ef7eb2e8f9f7 | 1118 | * |
<> | 144:ef7eb2e8f9f7 | 1119 | * @param[in] em23Init |
<> | 144:ef7eb2e8f9f7 | 1120 | * Energy Mode 2 and 3 configuration structure |
<> | 144:ef7eb2e8f9f7 | 1121 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1122 | void EMU_EM23Init(const EMU_EM23Init_TypeDef *em23Init) |
<> | 144:ef7eb2e8f9f7 | 1123 | { |
AnnaBridge | 179:b0033dcd6934 | 1124 | #if defined(_EMU_CTRL_EMVREG_MASK) |
<> | 144:ef7eb2e8f9f7 | 1125 | EMU->CTRL = em23Init->em23VregFullEn ? (EMU->CTRL | EMU_CTRL_EMVREG) |
AnnaBridge | 179:b0033dcd6934 | 1126 | : (EMU->CTRL & ~EMU_CTRL_EMVREG); |
AnnaBridge | 179:b0033dcd6934 | 1127 | #elif defined(_EMU_CTRL_EM23VREG_MASK) |
<> | 144:ef7eb2e8f9f7 | 1128 | EMU->CTRL = em23Init->em23VregFullEn ? (EMU->CTRL | EMU_CTRL_EM23VREG) |
AnnaBridge | 179:b0033dcd6934 | 1129 | : (EMU->CTRL & ~EMU_CTRL_EM23VREG); |
<> | 144:ef7eb2e8f9f7 | 1130 | #else |
<> | 144:ef7eb2e8f9f7 | 1131 | (void)em23Init; |
<> | 144:ef7eb2e8f9f7 | 1132 | #endif |
<> | 161:2cc1468da177 | 1133 | |
AnnaBridge | 179:b0033dcd6934 | 1134 | #if defined(_EMU_CTRL_EM23VSCALE_MASK) |
<> | 161:2cc1468da177 | 1135 | EMU->CTRL = (EMU->CTRL & ~_EMU_CTRL_EM23VSCALE_MASK) |
<> | 161:2cc1468da177 | 1136 | | (em23Init->vScaleEM23Voltage << _EMU_CTRL_EM23VSCALE_SHIFT); |
<> | 161:2cc1468da177 | 1137 | #endif |
<> | 144:ef7eb2e8f9f7 | 1138 | } |
<> | 144:ef7eb2e8f9f7 | 1139 | |
AnnaBridge | 179:b0033dcd6934 | 1140 | #if defined(_EMU_EM4CONF_MASK) || defined(_EMU_EM4CTRL_MASK) |
<> | 144:ef7eb2e8f9f7 | 1141 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1142 | * @brief |
<> | 144:ef7eb2e8f9f7 | 1143 | * Update EMU module with Energy Mode 4 configuration |
<> | 144:ef7eb2e8f9f7 | 1144 | * |
<> | 144:ef7eb2e8f9f7 | 1145 | * @param[in] em4Init |
<> | 144:ef7eb2e8f9f7 | 1146 | * Energy Mode 4 configuration structure |
<> | 144:ef7eb2e8f9f7 | 1147 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1148 | void EMU_EM4Init(const EMU_EM4Init_TypeDef *em4Init) |
<> | 144:ef7eb2e8f9f7 | 1149 | { |
AnnaBridge | 179:b0033dcd6934 | 1150 | #if defined(_EMU_EM4CONF_MASK) |
<> | 144:ef7eb2e8f9f7 | 1151 | /* Init for platforms with EMU->EM4CONF register */ |
<> | 144:ef7eb2e8f9f7 | 1152 | uint32_t em4conf = EMU->EM4CONF; |
<> | 144:ef7eb2e8f9f7 | 1153 | |
<> | 144:ef7eb2e8f9f7 | 1154 | /* Clear fields that will be reconfigured */ |
<> | 144:ef7eb2e8f9f7 | 1155 | em4conf &= ~(_EMU_EM4CONF_LOCKCONF_MASK |
<> | 144:ef7eb2e8f9f7 | 1156 | | _EMU_EM4CONF_OSC_MASK |
<> | 144:ef7eb2e8f9f7 | 1157 | | _EMU_EM4CONF_BURTCWU_MASK |
AnnaBridge | 179:b0033dcd6934 | 1158 | | _EMU_EM4CONF_VREGEN_MASK |
AnnaBridge | 179:b0033dcd6934 | 1159 | | _EMU_EM4CONF_BUBODRSTDIS_MASK); |
<> | 144:ef7eb2e8f9f7 | 1160 | |
<> | 144:ef7eb2e8f9f7 | 1161 | /* Configure new settings */ |
<> | 144:ef7eb2e8f9f7 | 1162 | em4conf |= (em4Init->lockConfig << _EMU_EM4CONF_LOCKCONF_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 1163 | | (em4Init->osc) |
<> | 144:ef7eb2e8f9f7 | 1164 | | (em4Init->buRtcWakeup << _EMU_EM4CONF_BURTCWU_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 1165 | | (em4Init->vreg << _EMU_EM4CONF_VREGEN_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 1166 | | (em4Init->buBodRstDis << _EMU_EM4CONF_BUBODRSTDIS_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 1167 | |
<> | 144:ef7eb2e8f9f7 | 1168 | /* Apply configuration. Note that lock can be set after this stage. */ |
<> | 144:ef7eb2e8f9f7 | 1169 | EMU->EM4CONF = em4conf; |
<> | 144:ef7eb2e8f9f7 | 1170 | |
AnnaBridge | 179:b0033dcd6934 | 1171 | #elif defined(_EMU_EM4CTRL_MASK) |
<> | 144:ef7eb2e8f9f7 | 1172 | /* Init for platforms with EMU->EM4CTRL register */ |
<> | 144:ef7eb2e8f9f7 | 1173 | |
<> | 144:ef7eb2e8f9f7 | 1174 | uint32_t em4ctrl = EMU->EM4CTRL; |
<> | 144:ef7eb2e8f9f7 | 1175 | |
<> | 144:ef7eb2e8f9f7 | 1176 | em4ctrl &= ~(_EMU_EM4CTRL_RETAINLFXO_MASK |
<> | 144:ef7eb2e8f9f7 | 1177 | | _EMU_EM4CTRL_RETAINLFRCO_MASK |
<> | 144:ef7eb2e8f9f7 | 1178 | | _EMU_EM4CTRL_RETAINULFRCO_MASK |
<> | 144:ef7eb2e8f9f7 | 1179 | | _EMU_EM4CTRL_EM4STATE_MASK |
<> | 144:ef7eb2e8f9f7 | 1180 | | _EMU_EM4CTRL_EM4IORETMODE_MASK); |
<> | 144:ef7eb2e8f9f7 | 1181 | |
<> | 150:02e0a0aed4ec | 1182 | em4ctrl |= (em4Init->retainLfxo ? EMU_EM4CTRL_RETAINLFXO : 0) |
AnnaBridge | 179:b0033dcd6934 | 1183 | | (em4Init->retainLfrco ? EMU_EM4CTRL_RETAINLFRCO : 0) |
AnnaBridge | 179:b0033dcd6934 | 1184 | | (em4Init->retainUlfrco ? EMU_EM4CTRL_RETAINULFRCO : 0) |
AnnaBridge | 179:b0033dcd6934 | 1185 | | (em4Init->em4State ? EMU_EM4CTRL_EM4STATE_EM4H : 0) |
AnnaBridge | 179:b0033dcd6934 | 1186 | | (em4Init->pinRetentionMode); |
<> | 144:ef7eb2e8f9f7 | 1187 | |
<> | 144:ef7eb2e8f9f7 | 1188 | EMU->EM4CTRL = em4ctrl; |
<> | 144:ef7eb2e8f9f7 | 1189 | #endif |
<> | 161:2cc1468da177 | 1190 | |
AnnaBridge | 179:b0033dcd6934 | 1191 | #if defined(_EMU_CTRL_EM4HVSCALE_MASK) |
<> | 161:2cc1468da177 | 1192 | EMU->CTRL = (EMU->CTRL & ~_EMU_CTRL_EM4HVSCALE_MASK) |
<> | 161:2cc1468da177 | 1193 | | (em4Init->vScaleEM4HVoltage << _EMU_CTRL_EM4HVSCALE_SHIFT); |
<> | 161:2cc1468da177 | 1194 | #endif |
<> | 144:ef7eb2e8f9f7 | 1195 | } |
<> | 144:ef7eb2e8f9f7 | 1196 | #endif |
<> | 144:ef7eb2e8f9f7 | 1197 | |
AnnaBridge | 179:b0033dcd6934 | 1198 | #if defined(BU_PRESENT) && defined(_SILICON_LABS_32B_SERIES_0) |
<> | 144:ef7eb2e8f9f7 | 1199 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1200 | * @brief |
<> | 144:ef7eb2e8f9f7 | 1201 | * Configure Backup Power Domain settings |
<> | 144:ef7eb2e8f9f7 | 1202 | * |
<> | 144:ef7eb2e8f9f7 | 1203 | * @param[in] bupdInit |
<> | 144:ef7eb2e8f9f7 | 1204 | * Backup power domain initialization structure |
<> | 144:ef7eb2e8f9f7 | 1205 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1206 | void EMU_BUPDInit(const EMU_BUPDInit_TypeDef *bupdInit) |
<> | 144:ef7eb2e8f9f7 | 1207 | { |
<> | 144:ef7eb2e8f9f7 | 1208 | uint32_t reg; |
<> | 144:ef7eb2e8f9f7 | 1209 | |
<> | 144:ef7eb2e8f9f7 | 1210 | /* Set power connection configuration */ |
<> | 144:ef7eb2e8f9f7 | 1211 | reg = EMU->PWRCONF & ~(_EMU_PWRCONF_PWRRES_MASK |
<> | 144:ef7eb2e8f9f7 | 1212 | | _EMU_PWRCONF_VOUTSTRONG_MASK |
<> | 144:ef7eb2e8f9f7 | 1213 | | _EMU_PWRCONF_VOUTMED_MASK |
<> | 144:ef7eb2e8f9f7 | 1214 | | _EMU_PWRCONF_VOUTWEAK_MASK); |
<> | 144:ef7eb2e8f9f7 | 1215 | |
<> | 144:ef7eb2e8f9f7 | 1216 | reg |= bupdInit->resistor |
<> | 144:ef7eb2e8f9f7 | 1217 | | (bupdInit->voutStrong << _EMU_PWRCONF_VOUTSTRONG_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 1218 | | (bupdInit->voutMed << _EMU_PWRCONF_VOUTMED_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 1219 | | (bupdInit->voutWeak << _EMU_PWRCONF_VOUTWEAK_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 1220 | |
<> | 144:ef7eb2e8f9f7 | 1221 | EMU->PWRCONF = reg; |
<> | 144:ef7eb2e8f9f7 | 1222 | |
<> | 144:ef7eb2e8f9f7 | 1223 | /* Set backup domain inactive mode configuration */ |
<> | 144:ef7eb2e8f9f7 | 1224 | reg = EMU->BUINACT & ~(_EMU_BUINACT_PWRCON_MASK); |
<> | 144:ef7eb2e8f9f7 | 1225 | reg |= (bupdInit->inactivePower); |
<> | 144:ef7eb2e8f9f7 | 1226 | EMU->BUINACT = reg; |
<> | 144:ef7eb2e8f9f7 | 1227 | |
<> | 144:ef7eb2e8f9f7 | 1228 | /* Set backup domain active mode configuration */ |
<> | 144:ef7eb2e8f9f7 | 1229 | reg = EMU->BUACT & ~(_EMU_BUACT_PWRCON_MASK); |
<> | 144:ef7eb2e8f9f7 | 1230 | reg |= (bupdInit->activePower); |
<> | 144:ef7eb2e8f9f7 | 1231 | EMU->BUACT = reg; |
<> | 144:ef7eb2e8f9f7 | 1232 | |
<> | 144:ef7eb2e8f9f7 | 1233 | /* Set power control configuration */ |
<> | 144:ef7eb2e8f9f7 | 1234 | reg = EMU->BUCTRL & ~(_EMU_BUCTRL_PROBE_MASK |
<> | 144:ef7eb2e8f9f7 | 1235 | | _EMU_BUCTRL_BODCAL_MASK |
<> | 144:ef7eb2e8f9f7 | 1236 | | _EMU_BUCTRL_STATEN_MASK |
<> | 144:ef7eb2e8f9f7 | 1237 | | _EMU_BUCTRL_EN_MASK); |
<> | 144:ef7eb2e8f9f7 | 1238 | |
<> | 144:ef7eb2e8f9f7 | 1239 | /* Note use of ->enable to both enable BUPD, use BU_VIN pin input and |
<> | 144:ef7eb2e8f9f7 | 1240 | release reset */ |
<> | 144:ef7eb2e8f9f7 | 1241 | reg |= bupdInit->probe |
<> | 144:ef7eb2e8f9f7 | 1242 | | (bupdInit->bodCal << _EMU_BUCTRL_BODCAL_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 1243 | | (bupdInit->statusPinEnable << _EMU_BUCTRL_STATEN_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 1244 | | (bupdInit->enable << _EMU_BUCTRL_EN_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 1245 | |
<> | 144:ef7eb2e8f9f7 | 1246 | /* Enable configuration */ |
<> | 144:ef7eb2e8f9f7 | 1247 | EMU->BUCTRL = reg; |
<> | 144:ef7eb2e8f9f7 | 1248 | |
<> | 144:ef7eb2e8f9f7 | 1249 | /* If enable is true, enable BU_VIN input power pin, if not disable it */ |
<> | 144:ef7eb2e8f9f7 | 1250 | EMU_BUPinEnable(bupdInit->enable); |
<> | 144:ef7eb2e8f9f7 | 1251 | |
<> | 144:ef7eb2e8f9f7 | 1252 | /* If enable is true, release BU reset, if not keep reset asserted */ |
<> | 144:ef7eb2e8f9f7 | 1253 | BUS_RegBitWrite(&(RMU->CTRL), _RMU_CTRL_BURSTEN_SHIFT, !bupdInit->enable); |
<> | 144:ef7eb2e8f9f7 | 1254 | } |
<> | 144:ef7eb2e8f9f7 | 1255 | |
<> | 144:ef7eb2e8f9f7 | 1256 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1257 | * @brief |
<> | 144:ef7eb2e8f9f7 | 1258 | * Configure Backup Power Domain BOD Threshold value |
<> | 144:ef7eb2e8f9f7 | 1259 | * @note |
<> | 144:ef7eb2e8f9f7 | 1260 | * These values are precalibrated |
<> | 144:ef7eb2e8f9f7 | 1261 | * @param[in] mode Active or Inactive mode |
<> | 144:ef7eb2e8f9f7 | 1262 | * @param[in] value |
<> | 144:ef7eb2e8f9f7 | 1263 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 1264 | void EMU_BUThresholdSet(EMU_BODMode_TypeDef mode, uint32_t value) |
<> | 144:ef7eb2e8f9f7 | 1265 | { |
AnnaBridge | 179:b0033dcd6934 | 1266 | EFM_ASSERT(value < 8); |
AnnaBridge | 179:b0033dcd6934 | 1267 | EFM_ASSERT(value <= (_EMU_BUACT_BUEXTHRES_MASK >> _EMU_BUACT_BUEXTHRES_SHIFT)); |
<> | 144:ef7eb2e8f9f7 | 1268 | |
AnnaBridge | 179:b0033dcd6934 | 1269 | switch (mode) { |
<> | 144:ef7eb2e8f9f7 | 1270 | case emuBODMode_Active: |
<> | 144:ef7eb2e8f9f7 | 1271 | EMU->BUACT = (EMU->BUACT & ~_EMU_BUACT_BUEXTHRES_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1272 | | (value << _EMU_BUACT_BUEXTHRES_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 1273 | break; |
<> | 144:ef7eb2e8f9f7 | 1274 | case emuBODMode_Inactive: |
<> | 144:ef7eb2e8f9f7 | 1275 | EMU->BUINACT = (EMU->BUINACT & ~_EMU_BUINACT_BUENTHRES_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1276 | | (value << _EMU_BUINACT_BUENTHRES_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 1277 | break; |
<> | 144:ef7eb2e8f9f7 | 1278 | } |
<> | 144:ef7eb2e8f9f7 | 1279 | } |
<> | 144:ef7eb2e8f9f7 | 1280 | |
<> | 144:ef7eb2e8f9f7 | 1281 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1282 | * @brief |
<> | 144:ef7eb2e8f9f7 | 1283 | * Configure Backup Power Domain BOD Threshold Range |
<> | 144:ef7eb2e8f9f7 | 1284 | * @note |
<> | 144:ef7eb2e8f9f7 | 1285 | * These values are precalibrated |
<> | 144:ef7eb2e8f9f7 | 1286 | * @param[in] mode Active or Inactive mode |
<> | 144:ef7eb2e8f9f7 | 1287 | * @param[in] value |
<> | 144:ef7eb2e8f9f7 | 1288 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 1289 | void EMU_BUThresRangeSet(EMU_BODMode_TypeDef mode, uint32_t value) |
<> | 144:ef7eb2e8f9f7 | 1290 | { |
<> | 144:ef7eb2e8f9f7 | 1291 | EFM_ASSERT(value < 4); |
AnnaBridge | 179:b0033dcd6934 | 1292 | EFM_ASSERT(value <= (_EMU_BUACT_BUEXRANGE_MASK >> _EMU_BUACT_BUEXRANGE_SHIFT)); |
<> | 144:ef7eb2e8f9f7 | 1293 | |
AnnaBridge | 179:b0033dcd6934 | 1294 | switch (mode) { |
<> | 144:ef7eb2e8f9f7 | 1295 | case emuBODMode_Active: |
<> | 144:ef7eb2e8f9f7 | 1296 | EMU->BUACT = (EMU->BUACT & ~_EMU_BUACT_BUEXRANGE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1297 | | (value << _EMU_BUACT_BUEXRANGE_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 1298 | break; |
<> | 144:ef7eb2e8f9f7 | 1299 | case emuBODMode_Inactive: |
<> | 144:ef7eb2e8f9f7 | 1300 | EMU->BUINACT = (EMU->BUINACT & ~_EMU_BUINACT_BUENRANGE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1301 | | (value << _EMU_BUINACT_BUENRANGE_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 1302 | break; |
<> | 144:ef7eb2e8f9f7 | 1303 | } |
<> | 144:ef7eb2e8f9f7 | 1304 | } |
<> | 144:ef7eb2e8f9f7 | 1305 | #endif |
<> | 144:ef7eb2e8f9f7 | 1306 | |
<> | 161:2cc1468da177 | 1307 | /** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */ |
AnnaBridge | 179:b0033dcd6934 | 1308 | #if defined(_EMU_DCDCCTRL_MASK) |
<> | 150:02e0a0aed4ec | 1309 | /* Translate fields with different names across platform generations to common names. */ |
AnnaBridge | 179:b0033dcd6934 | 1310 | #if defined(_EMU_DCDCMISCCTRL_LPCMPBIAS_MASK) |
<> | 150:02e0a0aed4ec | 1311 | #define _GENERIC_DCDCMISCCTRL_LPCMPBIASEM234H_MASK _EMU_DCDCMISCCTRL_LPCMPBIAS_MASK |
<> | 150:02e0a0aed4ec | 1312 | #define _GENERIC_DCDCMISCCTRL_LPCMPBIASEM234H_SHIFT _EMU_DCDCMISCCTRL_LPCMPBIAS_SHIFT |
AnnaBridge | 179:b0033dcd6934 | 1313 | #elif defined(_EMU_DCDCMISCCTRL_LPCMPBIASEM234H_MASK) |
<> | 150:02e0a0aed4ec | 1314 | #define _GENERIC_DCDCMISCCTRL_LPCMPBIASEM234H_MASK _EMU_DCDCMISCCTRL_LPCMPBIASEM234H_MASK |
<> | 150:02e0a0aed4ec | 1315 | #define _GENERIC_DCDCMISCCTRL_LPCMPBIASEM234H_SHIFT _EMU_DCDCMISCCTRL_LPCMPBIASEM234H_SHIFT |
<> | 150:02e0a0aed4ec | 1316 | #endif |
AnnaBridge | 179:b0033dcd6934 | 1317 | #if defined(_EMU_DCDCLPCTRL_LPCMPHYSSEL_MASK) |
<> | 150:02e0a0aed4ec | 1318 | #define _GENERIC_DCDCLPCTRL_LPCMPHYSSELEM234H_MASK _EMU_DCDCLPCTRL_LPCMPHYSSEL_MASK |
<> | 150:02e0a0aed4ec | 1319 | #define _GENERIC_DCDCLPCTRL_LPCMPHYSSELEM234H_SHIFT _EMU_DCDCLPCTRL_LPCMPHYSSEL_SHIFT |
AnnaBridge | 179:b0033dcd6934 | 1320 | #elif defined(_EMU_DCDCLPCTRL_LPCMPHYSSELEM234H_MASK) |
<> | 150:02e0a0aed4ec | 1321 | #define _GENERIC_DCDCLPCTRL_LPCMPHYSSELEM234H_MASK _EMU_DCDCLPCTRL_LPCMPHYSSELEM234H_MASK |
<> | 150:02e0a0aed4ec | 1322 | #define _GENERIC_DCDCLPCTRL_LPCMPHYSSELEM234H_SHIFT _EMU_DCDCLPCTRL_LPCMPHYSSELEM234H_SHIFT |
<> | 150:02e0a0aed4ec | 1323 | #endif |
<> | 150:02e0a0aed4ec | 1324 | |
<> | 161:2cc1468da177 | 1325 | /* Internal DCDC trim modes. */ |
AnnaBridge | 179:b0033dcd6934 | 1326 | typedef enum { |
<> | 161:2cc1468da177 | 1327 | dcdcTrimMode_EM234H_LP = 0, |
AnnaBridge | 179:b0033dcd6934 | 1328 | #if defined(_EMU_DCDCLPEM01CFG_LPCMPBIASEM01_MASK) |
<> | 161:2cc1468da177 | 1329 | dcdcTrimMode_EM01_LP, |
<> | 161:2cc1468da177 | 1330 | #endif |
<> | 161:2cc1468da177 | 1331 | dcdcTrimMode_LN, |
<> | 161:2cc1468da177 | 1332 | } dcdcTrimMode_TypeDef; |
<> | 144:ef7eb2e8f9f7 | 1333 | |
<> | 144:ef7eb2e8f9f7 | 1334 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1335 | * @brief |
<> | 144:ef7eb2e8f9f7 | 1336 | * Load DCDC calibration constants from DI page. Const means calibration |
<> | 144:ef7eb2e8f9f7 | 1337 | * data that does not change depending on other configuration parameters. |
<> | 144:ef7eb2e8f9f7 | 1338 | * |
<> | 144:ef7eb2e8f9f7 | 1339 | * @return |
<> | 144:ef7eb2e8f9f7 | 1340 | * False if calibration registers are locked |
<> | 144:ef7eb2e8f9f7 | 1341 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1342 | static bool dcdcConstCalibrationLoad(void) |
<> | 144:ef7eb2e8f9f7 | 1343 | { |
AnnaBridge | 179:b0033dcd6934 | 1344 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) |
<> | 144:ef7eb2e8f9f7 | 1345 | uint32_t val; |
<> | 144:ef7eb2e8f9f7 | 1346 | volatile uint32_t *reg; |
<> | 144:ef7eb2e8f9f7 | 1347 | |
<> | 144:ef7eb2e8f9f7 | 1348 | /* DI calib data in flash */ |
<> | 144:ef7eb2e8f9f7 | 1349 | volatile uint32_t* const diCal_EMU_DCDCLNFREQCTRL = (volatile uint32_t *)(0x0FE08038); |
<> | 144:ef7eb2e8f9f7 | 1350 | volatile uint32_t* const diCal_EMU_DCDCLNVCTRL = (volatile uint32_t *)(0x0FE08040); |
<> | 144:ef7eb2e8f9f7 | 1351 | volatile uint32_t* const diCal_EMU_DCDCLPCTRL = (volatile uint32_t *)(0x0FE08048); |
<> | 144:ef7eb2e8f9f7 | 1352 | volatile uint32_t* const diCal_EMU_DCDCLPVCTRL = (volatile uint32_t *)(0x0FE08050); |
<> | 144:ef7eb2e8f9f7 | 1353 | volatile uint32_t* const diCal_EMU_DCDCTRIM0 = (volatile uint32_t *)(0x0FE08058); |
<> | 144:ef7eb2e8f9f7 | 1354 | volatile uint32_t* const diCal_EMU_DCDCTRIM1 = (volatile uint32_t *)(0x0FE08060); |
<> | 144:ef7eb2e8f9f7 | 1355 | |
AnnaBridge | 179:b0033dcd6934 | 1356 | if (DEVINFO->DCDCLPVCTRL0 != UINT_MAX) { |
<> | 144:ef7eb2e8f9f7 | 1357 | val = *(diCal_EMU_DCDCLNFREQCTRL + 1); |
<> | 144:ef7eb2e8f9f7 | 1358 | reg = (volatile uint32_t *)*diCal_EMU_DCDCLNFREQCTRL; |
<> | 144:ef7eb2e8f9f7 | 1359 | *reg = val; |
<> | 144:ef7eb2e8f9f7 | 1360 | |
<> | 144:ef7eb2e8f9f7 | 1361 | val = *(diCal_EMU_DCDCLNVCTRL + 1); |
<> | 144:ef7eb2e8f9f7 | 1362 | reg = (volatile uint32_t *)*diCal_EMU_DCDCLNVCTRL; |
<> | 144:ef7eb2e8f9f7 | 1363 | *reg = val; |
<> | 144:ef7eb2e8f9f7 | 1364 | |
<> | 144:ef7eb2e8f9f7 | 1365 | val = *(diCal_EMU_DCDCLPCTRL + 1); |
<> | 144:ef7eb2e8f9f7 | 1366 | reg = (volatile uint32_t *)*diCal_EMU_DCDCLPCTRL; |
<> | 144:ef7eb2e8f9f7 | 1367 | *reg = val; |
<> | 144:ef7eb2e8f9f7 | 1368 | |
<> | 144:ef7eb2e8f9f7 | 1369 | val = *(diCal_EMU_DCDCLPVCTRL + 1); |
<> | 144:ef7eb2e8f9f7 | 1370 | reg = (volatile uint32_t *)*diCal_EMU_DCDCLPVCTRL; |
<> | 144:ef7eb2e8f9f7 | 1371 | *reg = val; |
<> | 144:ef7eb2e8f9f7 | 1372 | |
<> | 144:ef7eb2e8f9f7 | 1373 | val = *(diCal_EMU_DCDCTRIM0 + 1); |
<> | 144:ef7eb2e8f9f7 | 1374 | reg = (volatile uint32_t *)*diCal_EMU_DCDCTRIM0; |
<> | 144:ef7eb2e8f9f7 | 1375 | *reg = val; |
<> | 144:ef7eb2e8f9f7 | 1376 | |
<> | 144:ef7eb2e8f9f7 | 1377 | val = *(diCal_EMU_DCDCTRIM1 + 1); |
<> | 144:ef7eb2e8f9f7 | 1378 | reg = (volatile uint32_t *)*diCal_EMU_DCDCTRIM1; |
<> | 144:ef7eb2e8f9f7 | 1379 | *reg = val; |
<> | 144:ef7eb2e8f9f7 | 1380 | |
<> | 144:ef7eb2e8f9f7 | 1381 | return true; |
<> | 144:ef7eb2e8f9f7 | 1382 | } |
<> | 144:ef7eb2e8f9f7 | 1383 | EFM_ASSERT(false); |
<> | 144:ef7eb2e8f9f7 | 1384 | /* Return when assertions are disabled */ |
<> | 144:ef7eb2e8f9f7 | 1385 | return false; |
<> | 150:02e0a0aed4ec | 1386 | |
<> | 150:02e0a0aed4ec | 1387 | #else |
<> | 150:02e0a0aed4ec | 1388 | return true; |
<> | 150:02e0a0aed4ec | 1389 | #endif |
<> | 144:ef7eb2e8f9f7 | 1390 | } |
<> | 144:ef7eb2e8f9f7 | 1391 | |
<> | 144:ef7eb2e8f9f7 | 1392 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1393 | * @brief |
<> | 150:02e0a0aed4ec | 1394 | * Set recommended and validated current optimization and timing settings |
<> | 144:ef7eb2e8f9f7 | 1395 | * |
<> | 144:ef7eb2e8f9f7 | 1396 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1397 | static void dcdcValidatedConfigSet(void) |
<> | 144:ef7eb2e8f9f7 | 1398 | { |
<> | 150:02e0a0aed4ec | 1399 | /* Disable LP mode hysterysis in the state machine control */ |
<> | 150:02e0a0aed4ec | 1400 | #define EMU_DCDCMISCCTRL_LPCMPHYSDIS (0x1UL << 1) |
<> | 150:02e0a0aed4ec | 1401 | /* Comparator threshold on the high side */ |
<> | 150:02e0a0aed4ec | 1402 | #define EMU_DCDCMISCCTRL_LPCMPHYSHI (0x1UL << 2) |
AnnaBridge | 179:b0033dcd6934 | 1403 | #define EMU_DCDCSMCTRL (*(volatile uint32_t *)(EMU_BASE + 0x44)) |
<> | 144:ef7eb2e8f9f7 | 1404 | |
<> | 161:2cc1468da177 | 1405 | uint32_t lnForceCcm; |
<> | 161:2cc1468da177 | 1406 | |
AnnaBridge | 179:b0033dcd6934 | 1407 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) |
<> | 144:ef7eb2e8f9f7 | 1408 | uint32_t dcdcTiming; |
<> | 144:ef7eb2e8f9f7 | 1409 | SYSTEM_ChipRevision_TypeDef rev; |
<> | 150:02e0a0aed4ec | 1410 | #endif |
<> | 150:02e0a0aed4ec | 1411 | |
<> | 144:ef7eb2e8f9f7 | 1412 | /* Enable duty cycling of the bias */ |
<> | 144:ef7eb2e8f9f7 | 1413 | EMU->DCDCLPCTRL |= EMU_DCDCLPCTRL_LPVREFDUTYEN; |
<> | 144:ef7eb2e8f9f7 | 1414 | |
<> | 150:02e0a0aed4ec | 1415 | /* Set low-noise RCO for LNFORCECCM configuration |
<> | 150:02e0a0aed4ec | 1416 | * LNFORCECCM is default 1 for EFR32 |
<> | 150:02e0a0aed4ec | 1417 | * LNFORCECCM is default 0 for EFM32 |
<> | 150:02e0a0aed4ec | 1418 | */ |
<> | 161:2cc1468da177 | 1419 | lnForceCcm = BUS_RegBitRead(&EMU->DCDCMISCCTRL, _EMU_DCDCMISCCTRL_LNFORCECCM_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 1420 | if (lnForceCcm) { |
<> | 150:02e0a0aed4ec | 1421 | /* 7MHz is recommended for LNFORCECCM = 1 */ |
<> | 150:02e0a0aed4ec | 1422 | EMU_DCDCLnRcoBandSet(emuDcdcLnRcoBand_7MHz); |
AnnaBridge | 179:b0033dcd6934 | 1423 | } else { |
<> | 150:02e0a0aed4ec | 1424 | /* 3MHz is recommended for LNFORCECCM = 0 */ |
<> | 150:02e0a0aed4ec | 1425 | EMU_DCDCLnRcoBandSet(emuDcdcLnRcoBand_3MHz); |
<> | 150:02e0a0aed4ec | 1426 | } |
<> | 144:ef7eb2e8f9f7 | 1427 | |
AnnaBridge | 179:b0033dcd6934 | 1428 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) |
<> | 144:ef7eb2e8f9f7 | 1429 | EMU->DCDCTIMING &= ~_EMU_DCDCTIMING_DUTYSCALE_MASK; |
<> | 150:02e0a0aed4ec | 1430 | EMU->DCDCMISCCTRL |= EMU_DCDCMISCCTRL_LPCMPHYSDIS |
<> | 150:02e0a0aed4ec | 1431 | | EMU_DCDCMISCCTRL_LPCMPHYSHI; |
<> | 144:ef7eb2e8f9f7 | 1432 | |
<> | 144:ef7eb2e8f9f7 | 1433 | SYSTEM_ChipRevisionGet(&rev); |
<> | 161:2cc1468da177 | 1434 | if ((rev.major == 1) |
<> | 161:2cc1468da177 | 1435 | && (rev.minor < 3) |
AnnaBridge | 179:b0033dcd6934 | 1436 | && (errataFixDcdcHsState == errataFixDcdcHsInit)) { |
<> | 144:ef7eb2e8f9f7 | 1437 | /* LPCMPWAITDIS = 1 */ |
<> | 144:ef7eb2e8f9f7 | 1438 | EMU_DCDCSMCTRL |= 1; |
<> | 144:ef7eb2e8f9f7 | 1439 | |
<> | 144:ef7eb2e8f9f7 | 1440 | dcdcTiming = EMU->DCDCTIMING; |
<> | 144:ef7eb2e8f9f7 | 1441 | dcdcTiming &= ~(_EMU_DCDCTIMING_LPINITWAIT_MASK |
AnnaBridge | 179:b0033dcd6934 | 1442 | | _EMU_DCDCTIMING_LNWAIT_MASK |
AnnaBridge | 179:b0033dcd6934 | 1443 | | _EMU_DCDCTIMING_BYPWAIT_MASK); |
<> | 144:ef7eb2e8f9f7 | 1444 | |
<> | 144:ef7eb2e8f9f7 | 1445 | dcdcTiming |= ((180 << _EMU_DCDCTIMING_LPINITWAIT_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 1446 | | (12 << _EMU_DCDCTIMING_LNWAIT_SHIFT) |
<> | 144:ef7eb2e8f9f7 | 1447 | | (180 << _EMU_DCDCTIMING_BYPWAIT_SHIFT)); |
<> | 144:ef7eb2e8f9f7 | 1448 | EMU->DCDCTIMING = dcdcTiming; |
<> | 144:ef7eb2e8f9f7 | 1449 | |
<> | 144:ef7eb2e8f9f7 | 1450 | errataFixDcdcHsState = errataFixDcdcHsTrimSet; |
<> | 144:ef7eb2e8f9f7 | 1451 | } |
<> | 150:02e0a0aed4ec | 1452 | #endif |
<> | 144:ef7eb2e8f9f7 | 1453 | } |
<> | 144:ef7eb2e8f9f7 | 1454 | |
<> | 144:ef7eb2e8f9f7 | 1455 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1456 | * @brief |
<> | 150:02e0a0aed4ec | 1457 | * Compute current limiters: |
<> | 150:02e0a0aed4ec | 1458 | * LNCLIMILIMSEL: LN current limiter threshold |
<> | 150:02e0a0aed4ec | 1459 | * LPCLIMILIMSEL: LP current limiter threshold |
<> | 150:02e0a0aed4ec | 1460 | * DCDCZDETCTRL: zero detector limiter threshold |
<> | 144:ef7eb2e8f9f7 | 1461 | ******************************************************************************/ |
<> | 150:02e0a0aed4ec | 1462 | static void currentLimitersUpdate(void) |
<> | 144:ef7eb2e8f9f7 | 1463 | { |
<> | 150:02e0a0aed4ec | 1464 | uint32_t lncLimSel; |
<> | 150:02e0a0aed4ec | 1465 | uint32_t zdetLimSel; |
<> | 144:ef7eb2e8f9f7 | 1466 | uint32_t pFetCnt; |
<> | 150:02e0a0aed4ec | 1467 | uint16_t maxReverseCurrent_mA; |
<> | 144:ef7eb2e8f9f7 | 1468 | |
AnnaBridge | 179:b0033dcd6934 | 1469 | /* 80mA as recommended peak in Application Note AN0948. |
AnnaBridge | 179:b0033dcd6934 | 1470 | The peak current is the average current plus 50% of the current ripple. |
AnnaBridge | 179:b0033dcd6934 | 1471 | Hence, a 14mA average current is recommended in LP mode. Since LP PFETCNT is also |
AnnaBridge | 179:b0033dcd6934 | 1472 | a constant, we get lpcLimImSel = 1. The following calculation is provided |
AnnaBridge | 179:b0033dcd6934 | 1473 | for documentation only. */ |
<> | 150:02e0a0aed4ec | 1474 | const uint32_t lpcLim = (((14 + 40) + ((14 + 40) / 2)) |
<> | 150:02e0a0aed4ec | 1475 | / (5 * (DCDC_LP_PFET_CNT + 1))) |
<> | 150:02e0a0aed4ec | 1476 | - 1; |
<> | 150:02e0a0aed4ec | 1477 | const uint32_t lpcLimSel = lpcLim << _EMU_DCDCMISCCTRL_LPCLIMILIMSEL_SHIFT; |
<> | 150:02e0a0aed4ec | 1478 | |
<> | 150:02e0a0aed4ec | 1479 | /* Get enabled PFETs */ |
<> | 144:ef7eb2e8f9f7 | 1480 | pFetCnt = (EMU->DCDCMISCCTRL & _EMU_DCDCMISCCTRL_PFETCNT_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1481 | >> _EMU_DCDCMISCCTRL_PFETCNT_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 1482 | |
<> | 150:02e0a0aed4ec | 1483 | /* Compute LN current limiter threshold from nominal user input current and |
<> | 150:02e0a0aed4ec | 1484 | LN PFETCNT as described in the register description for |
<> | 150:02e0a0aed4ec | 1485 | EMU_DCDCMISCCTRL_LNCLIMILIMSEL. */ |
<> | 150:02e0a0aed4ec | 1486 | lncLimSel = (((dcdcMaxCurrent_mA + 40) + ((dcdcMaxCurrent_mA + 40) / 2)) |
<> | 150:02e0a0aed4ec | 1487 | / (5 * (pFetCnt + 1))) |
<> | 150:02e0a0aed4ec | 1488 | - 1; |
<> | 144:ef7eb2e8f9f7 | 1489 | |
<> | 150:02e0a0aed4ec | 1490 | /* Saturate the register field value */ |
<> | 150:02e0a0aed4ec | 1491 | lncLimSel = SL_MIN(lncLimSel, |
<> | 150:02e0a0aed4ec | 1492 | _EMU_DCDCMISCCTRL_LNCLIMILIMSEL_MASK |
AnnaBridge | 179:b0033dcd6934 | 1493 | >> _EMU_DCDCMISCCTRL_LNCLIMILIMSEL_SHIFT); |
<> | 150:02e0a0aed4ec | 1494 | |
<> | 150:02e0a0aed4ec | 1495 | lncLimSel <<= _EMU_DCDCMISCCTRL_LNCLIMILIMSEL_SHIFT; |
<> | 150:02e0a0aed4ec | 1496 | |
<> | 150:02e0a0aed4ec | 1497 | /* Check for overflow */ |
<> | 150:02e0a0aed4ec | 1498 | EFM_ASSERT((lncLimSel & ~_EMU_DCDCMISCCTRL_LNCLIMILIMSEL_MASK) == 0x0); |
<> | 150:02e0a0aed4ec | 1499 | EFM_ASSERT((lpcLimSel & ~_EMU_DCDCMISCCTRL_LPCLIMILIMSEL_MASK) == 0x0); |
<> | 150:02e0a0aed4ec | 1500 | |
<> | 144:ef7eb2e8f9f7 | 1501 | EMU->DCDCMISCCTRL = (EMU->DCDCMISCCTRL & ~(_EMU_DCDCMISCCTRL_LNCLIMILIMSEL_MASK |
<> | 144:ef7eb2e8f9f7 | 1502 | | _EMU_DCDCMISCCTRL_LPCLIMILIMSEL_MASK)) |
AnnaBridge | 179:b0033dcd6934 | 1503 | | (lncLimSel | lpcLimSel); |
<> | 150:02e0a0aed4ec | 1504 | |
<> | 150:02e0a0aed4ec | 1505 | /* Compute reverse current limit threshold for the zero detector from user input |
<> | 150:02e0a0aed4ec | 1506 | maximum reverse current and LN PFETCNT as described in the register description |
<> | 150:02e0a0aed4ec | 1507 | for EMU_DCDCZDETCTRL_ZDETILIMSEL. */ |
AnnaBridge | 179:b0033dcd6934 | 1508 | if (dcdcReverseCurrentControl >= 0) { |
<> | 150:02e0a0aed4ec | 1509 | /* If dcdcReverseCurrentControl < 0, then EMU_DCDCZDETCTRL_ZDETILIMSEL is "don't care" */ |
<> | 150:02e0a0aed4ec | 1510 | maxReverseCurrent_mA = (uint16_t)dcdcReverseCurrentControl; |
<> | 150:02e0a0aed4ec | 1511 | |
<> | 150:02e0a0aed4ec | 1512 | zdetLimSel = ( ((maxReverseCurrent_mA + 40) + ((maxReverseCurrent_mA + 40) / 2)) |
AnnaBridge | 179:b0033dcd6934 | 1513 | / ((2 * (pFetCnt + 1)) + ((pFetCnt + 1) / 2)) ); |
<> | 150:02e0a0aed4ec | 1514 | /* Saturate the register field value */ |
<> | 150:02e0a0aed4ec | 1515 | zdetLimSel = SL_MIN(zdetLimSel, |
<> | 150:02e0a0aed4ec | 1516 | _EMU_DCDCZDETCTRL_ZDETILIMSEL_MASK |
AnnaBridge | 179:b0033dcd6934 | 1517 | >> _EMU_DCDCZDETCTRL_ZDETILIMSEL_SHIFT); |
<> | 150:02e0a0aed4ec | 1518 | |
<> | 150:02e0a0aed4ec | 1519 | zdetLimSel <<= _EMU_DCDCZDETCTRL_ZDETILIMSEL_SHIFT; |
<> | 150:02e0a0aed4ec | 1520 | |
<> | 150:02e0a0aed4ec | 1521 | /* Check for overflow */ |
<> | 150:02e0a0aed4ec | 1522 | EFM_ASSERT((zdetLimSel & ~_EMU_DCDCZDETCTRL_ZDETILIMSEL_MASK) == 0x0); |
<> | 150:02e0a0aed4ec | 1523 | |
<> | 150:02e0a0aed4ec | 1524 | EMU->DCDCZDETCTRL = (EMU->DCDCZDETCTRL & ~_EMU_DCDCZDETCTRL_ZDETILIMSEL_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1525 | | zdetLimSel; |
<> | 150:02e0a0aed4ec | 1526 | } |
<> | 144:ef7eb2e8f9f7 | 1527 | } |
<> | 144:ef7eb2e8f9f7 | 1528 | |
<> | 144:ef7eb2e8f9f7 | 1529 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1530 | * @brief |
<> | 150:02e0a0aed4ec | 1531 | * Set static variables that hold the user set maximum peak current |
<> | 150:02e0a0aed4ec | 1532 | * and reverse current. Update limiters. |
<> | 144:ef7eb2e8f9f7 | 1533 | * |
<> | 150:02e0a0aed4ec | 1534 | * @param[in] maxCurrent_mA |
<> | 150:02e0a0aed4ec | 1535 | * Set the maximum peak current that the DCDC can draw from the power source. |
<> | 150:02e0a0aed4ec | 1536 | * @param[in] reverseCurrentControl |
<> | 150:02e0a0aed4ec | 1537 | * Reverse current control as defined by |
<> | 150:02e0a0aed4ec | 1538 | * @ref EMU_DcdcLnReverseCurrentControl_TypeDef. Positive values have unit mA. |
<> | 144:ef7eb2e8f9f7 | 1539 | ******************************************************************************/ |
<> | 150:02e0a0aed4ec | 1540 | static void userCurrentLimitsSet(uint32_t maxCurrent_mA, |
<> | 150:02e0a0aed4ec | 1541 | EMU_DcdcLnReverseCurrentControl_TypeDef reverseCurrentControl) |
<> | 144:ef7eb2e8f9f7 | 1542 | { |
<> | 150:02e0a0aed4ec | 1543 | dcdcMaxCurrent_mA = maxCurrent_mA; |
<> | 150:02e0a0aed4ec | 1544 | dcdcReverseCurrentControl = reverseCurrentControl; |
<> | 144:ef7eb2e8f9f7 | 1545 | } |
<> | 144:ef7eb2e8f9f7 | 1546 | |
<> | 144:ef7eb2e8f9f7 | 1547 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1548 | * @brief |
<> | 150:02e0a0aed4ec | 1549 | * Set DCDC low noise compensator control register |
<> | 150:02e0a0aed4ec | 1550 | * |
<> | 150:02e0a0aed4ec | 1551 | * @param[in] comp |
<> | 150:02e0a0aed4ec | 1552 | * Low-noise mode compensator trim setpoint |
<> | 150:02e0a0aed4ec | 1553 | ******************************************************************************/ |
<> | 150:02e0a0aed4ec | 1554 | static void compCtrlSet(EMU_DcdcLnCompCtrl_TypeDef comp) |
<> | 150:02e0a0aed4ec | 1555 | { |
AnnaBridge | 179:b0033dcd6934 | 1556 | switch (comp) { |
<> | 150:02e0a0aed4ec | 1557 | case emuDcdcLnCompCtrl_1u0F: |
<> | 161:2cc1468da177 | 1558 | EMU->DCDCLNCOMPCTRL = 0x57204077UL; |
<> | 150:02e0a0aed4ec | 1559 | break; |
<> | 150:02e0a0aed4ec | 1560 | |
<> | 150:02e0a0aed4ec | 1561 | case emuDcdcLnCompCtrl_4u7F: |
<> | 161:2cc1468da177 | 1562 | EMU->DCDCLNCOMPCTRL = 0xB7102137UL; |
<> | 150:02e0a0aed4ec | 1563 | break; |
<> | 150:02e0a0aed4ec | 1564 | |
<> | 150:02e0a0aed4ec | 1565 | default: |
<> | 150:02e0a0aed4ec | 1566 | EFM_ASSERT(false); |
<> | 150:02e0a0aed4ec | 1567 | break; |
<> | 150:02e0a0aed4ec | 1568 | } |
<> | 150:02e0a0aed4ec | 1569 | } |
<> | 150:02e0a0aed4ec | 1570 | |
<> | 150:02e0a0aed4ec | 1571 | /***************************************************************************//** |
<> | 150:02e0a0aed4ec | 1572 | * @brief |
<> | 144:ef7eb2e8f9f7 | 1573 | * Load EMU_DCDCLPCTRL_LPCMPHYSSEL depending on LP bias, LP feedback |
<> | 144:ef7eb2e8f9f7 | 1574 | * attenuation and DEVINFOREV. |
<> | 144:ef7eb2e8f9f7 | 1575 | * |
<> | 161:2cc1468da177 | 1576 | * @param[in] lpAttenuation |
<> | 144:ef7eb2e8f9f7 | 1577 | * LP feedback attenuation. |
<> | 144:ef7eb2e8f9f7 | 1578 | * @param[in] lpCmpBias |
<> | 161:2cc1468da177 | 1579 | * lpCmpBias selection. |
<> | 161:2cc1468da177 | 1580 | * @param[in] trimMode |
<> | 161:2cc1468da177 | 1581 | * DCDC trim mode. |
<> | 144:ef7eb2e8f9f7 | 1582 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1583 | static bool lpCmpHystCalibrationLoad(bool lpAttenuation, |
<> | 161:2cc1468da177 | 1584 | uint8_t lpCmpBias, |
<> | 161:2cc1468da177 | 1585 | dcdcTrimMode_TypeDef trimMode) |
<> | 144:ef7eb2e8f9f7 | 1586 | { |
<> | 144:ef7eb2e8f9f7 | 1587 | uint32_t lpcmpHystSel; |
<> | 144:ef7eb2e8f9f7 | 1588 | |
<> | 144:ef7eb2e8f9f7 | 1589 | /* Get calib data revision */ |
<> | 161:2cc1468da177 | 1590 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) |
<> | 161:2cc1468da177 | 1591 | uint8_t devinfoRev = SYSTEM_GetDevinfoRev(); |
<> | 144:ef7eb2e8f9f7 | 1592 | |
<> | 144:ef7eb2e8f9f7 | 1593 | /* Load LPATT indexed calibration data */ |
<> | 144:ef7eb2e8f9f7 | 1594 | if (devinfoRev < 4) |
<> | 161:2cc1468da177 | 1595 | #else |
<> | 161:2cc1468da177 | 1596 | /* Format change not present of newer families. */ |
<> | 161:2cc1468da177 | 1597 | if (false) |
<> | 161:2cc1468da177 | 1598 | #endif |
<> | 144:ef7eb2e8f9f7 | 1599 | { |
<> | 144:ef7eb2e8f9f7 | 1600 | lpcmpHystSel = DEVINFO->DCDCLPCMPHYSSEL0; |
<> | 144:ef7eb2e8f9f7 | 1601 | |
AnnaBridge | 179:b0033dcd6934 | 1602 | if (lpAttenuation) { |
<> | 144:ef7eb2e8f9f7 | 1603 | lpcmpHystSel = (lpcmpHystSel & _DEVINFO_DCDCLPCMPHYSSEL0_LPCMPHYSSELLPATT1_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1604 | >> _DEVINFO_DCDCLPCMPHYSSEL0_LPCMPHYSSELLPATT1_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 1605 | } else { |
AnnaBridge | 179:b0033dcd6934 | 1606 | lpcmpHystSel = (lpcmpHystSel & _DEVINFO_DCDCLPCMPHYSSEL0_LPCMPHYSSELLPATT0_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1607 | >> _DEVINFO_DCDCLPCMPHYSSEL0_LPCMPHYSSELLPATT0_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 1608 | } |
AnnaBridge | 179:b0033dcd6934 | 1609 | } else { |
<> | 150:02e0a0aed4ec | 1610 | /* devinfoRev >= 4: load LPCMPBIAS indexed calibration data */ |
<> | 144:ef7eb2e8f9f7 | 1611 | lpcmpHystSel = DEVINFO->DCDCLPCMPHYSSEL1; |
AnnaBridge | 179:b0033dcd6934 | 1612 | switch (lpCmpBias) { |
<> | 150:02e0a0aed4ec | 1613 | case 0: |
<> | 144:ef7eb2e8f9f7 | 1614 | lpcmpHystSel = (lpcmpHystSel & _DEVINFO_DCDCLPCMPHYSSEL1_LPCMPHYSSELLPCMPBIAS0_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1615 | >> _DEVINFO_DCDCLPCMPHYSSEL1_LPCMPHYSSELLPCMPBIAS0_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 1616 | break; |
<> | 144:ef7eb2e8f9f7 | 1617 | |
<> | 161:2cc1468da177 | 1618 | case 1: |
<> | 144:ef7eb2e8f9f7 | 1619 | lpcmpHystSel = (lpcmpHystSel & _DEVINFO_DCDCLPCMPHYSSEL1_LPCMPHYSSELLPCMPBIAS1_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1620 | >> _DEVINFO_DCDCLPCMPHYSSEL1_LPCMPHYSSELLPCMPBIAS1_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 1621 | break; |
<> | 144:ef7eb2e8f9f7 | 1622 | |
<> | 161:2cc1468da177 | 1623 | case 2: |
<> | 144:ef7eb2e8f9f7 | 1624 | lpcmpHystSel = (lpcmpHystSel & _DEVINFO_DCDCLPCMPHYSSEL1_LPCMPHYSSELLPCMPBIAS2_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1625 | >> _DEVINFO_DCDCLPCMPHYSSEL1_LPCMPHYSSELLPCMPBIAS2_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 1626 | break; |
<> | 144:ef7eb2e8f9f7 | 1627 | |
<> | 161:2cc1468da177 | 1628 | case 3: |
<> | 144:ef7eb2e8f9f7 | 1629 | lpcmpHystSel = (lpcmpHystSel & _DEVINFO_DCDCLPCMPHYSSEL1_LPCMPHYSSELLPCMPBIAS3_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1630 | >> _DEVINFO_DCDCLPCMPHYSSEL1_LPCMPHYSSELLPCMPBIAS3_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 1631 | break; |
<> | 144:ef7eb2e8f9f7 | 1632 | |
<> | 144:ef7eb2e8f9f7 | 1633 | default: |
<> | 144:ef7eb2e8f9f7 | 1634 | EFM_ASSERT(false); |
<> | 144:ef7eb2e8f9f7 | 1635 | /* Return when assertions are disabled */ |
<> | 144:ef7eb2e8f9f7 | 1636 | return false; |
<> | 144:ef7eb2e8f9f7 | 1637 | } |
<> | 144:ef7eb2e8f9f7 | 1638 | } |
<> | 161:2cc1468da177 | 1639 | |
<> | 161:2cc1468da177 | 1640 | /* Set trims */ |
AnnaBridge | 179:b0033dcd6934 | 1641 | if (trimMode == dcdcTrimMode_EM234H_LP) { |
<> | 161:2cc1468da177 | 1642 | /* Make sure the sel value is within the field range. */ |
<> | 161:2cc1468da177 | 1643 | lpcmpHystSel <<= _GENERIC_DCDCLPCTRL_LPCMPHYSSELEM234H_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 1644 | if (lpcmpHystSel & ~_GENERIC_DCDCLPCTRL_LPCMPHYSSELEM234H_MASK) { |
<> | 161:2cc1468da177 | 1645 | EFM_ASSERT(false); |
<> | 161:2cc1468da177 | 1646 | /* Return when assertions are disabled */ |
<> | 161:2cc1468da177 | 1647 | return false; |
<> | 161:2cc1468da177 | 1648 | } |
<> | 161:2cc1468da177 | 1649 | EMU->DCDCLPCTRL = (EMU->DCDCLPCTRL & ~_GENERIC_DCDCLPCTRL_LPCMPHYSSELEM234H_MASK) | lpcmpHystSel; |
<> | 144:ef7eb2e8f9f7 | 1650 | } |
<> | 161:2cc1468da177 | 1651 | |
AnnaBridge | 179:b0033dcd6934 | 1652 | #if defined(_EMU_DCDCLPEM01CFG_LPCMPHYSSELEM01_MASK) |
AnnaBridge | 179:b0033dcd6934 | 1653 | if (trimMode == dcdcTrimMode_EM01_LP) { |
<> | 161:2cc1468da177 | 1654 | /* Make sure the sel value is within the field range. */ |
<> | 161:2cc1468da177 | 1655 | lpcmpHystSel <<= _EMU_DCDCLPEM01CFG_LPCMPHYSSELEM01_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 1656 | if (lpcmpHystSel & ~_EMU_DCDCLPEM01CFG_LPCMPHYSSELEM01_MASK) { |
<> | 161:2cc1468da177 | 1657 | EFM_ASSERT(false); |
<> | 161:2cc1468da177 | 1658 | /* Return when assertions are disabled */ |
<> | 161:2cc1468da177 | 1659 | return false; |
<> | 161:2cc1468da177 | 1660 | } |
<> | 161:2cc1468da177 | 1661 | EMU->DCDCLPEM01CFG = (EMU->DCDCLPEM01CFG & ~_EMU_DCDCLPEM01CFG_LPCMPHYSSELEM01_MASK) | lpcmpHystSel; |
<> | 161:2cc1468da177 | 1662 | } |
<> | 161:2cc1468da177 | 1663 | #endif |
<> | 144:ef7eb2e8f9f7 | 1664 | |
<> | 144:ef7eb2e8f9f7 | 1665 | return true; |
<> | 144:ef7eb2e8f9f7 | 1666 | } |
<> | 144:ef7eb2e8f9f7 | 1667 | |
<> | 161:2cc1468da177 | 1668 | /***************************************************************************//** |
<> | 161:2cc1468da177 | 1669 | * @brief |
<> | 161:2cc1468da177 | 1670 | * Load LPVREF low and high from DEVINFO. |
<> | 161:2cc1468da177 | 1671 | * |
<> | 161:2cc1468da177 | 1672 | * @param[out] vrefL |
<> | 161:2cc1468da177 | 1673 | * LPVREF low from DEVINFO. |
<> | 161:2cc1468da177 | 1674 | * @param[out] vrefH |
<> | 161:2cc1468da177 | 1675 | * LPVREF high from DEVINFO. |
<> | 161:2cc1468da177 | 1676 | * @param[in] lpAttenuation |
<> | 161:2cc1468da177 | 1677 | * LP feedback attenuation. |
<> | 161:2cc1468da177 | 1678 | * @param[in] lpcmpBias |
<> | 161:2cc1468da177 | 1679 | * lpcmpBias to lookup in DEVINFO. |
<> | 161:2cc1468da177 | 1680 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1681 | static void lpGetDevinfoVrefLowHigh(uint32_t *vrefL, |
<> | 161:2cc1468da177 | 1682 | uint32_t *vrefH, |
<> | 161:2cc1468da177 | 1683 | bool lpAttenuation, |
<> | 161:2cc1468da177 | 1684 | uint8_t lpcmpBias) |
<> | 161:2cc1468da177 | 1685 | { |
<> | 161:2cc1468da177 | 1686 | uint32_t vrefLow = 0; |
<> | 161:2cc1468da177 | 1687 | uint32_t vrefHigh = 0; |
<> | 161:2cc1468da177 | 1688 | |
<> | 161:2cc1468da177 | 1689 | /* Find VREF high and low in DEVINFO indexed by LPCMPBIAS (lpcmpBias) |
<> | 161:2cc1468da177 | 1690 | and LPATT (lpAttenuation) */ |
<> | 161:2cc1468da177 | 1691 | uint32_t switchVal = (lpcmpBias << 8) | (lpAttenuation ? 1 : 0); |
AnnaBridge | 179:b0033dcd6934 | 1692 | switch (switchVal) { |
<> | 161:2cc1468da177 | 1693 | case ((0 << 8) | 1): |
<> | 161:2cc1468da177 | 1694 | vrefLow = DEVINFO->DCDCLPVCTRL2; |
<> | 161:2cc1468da177 | 1695 | vrefHigh = (vrefLow & _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS0_MASK) |
<> | 161:2cc1468da177 | 1696 | >> _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS0_SHIFT; |
<> | 161:2cc1468da177 | 1697 | vrefLow = (vrefLow & _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS0_MASK) |
<> | 161:2cc1468da177 | 1698 | >> _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS0_SHIFT; |
<> | 161:2cc1468da177 | 1699 | break; |
<> | 161:2cc1468da177 | 1700 | |
<> | 161:2cc1468da177 | 1701 | case ((1 << 8) | 1): |
<> | 161:2cc1468da177 | 1702 | vrefLow = DEVINFO->DCDCLPVCTRL2; |
<> | 161:2cc1468da177 | 1703 | vrefHigh = (vrefLow & _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS1_MASK) |
<> | 161:2cc1468da177 | 1704 | >> _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS1_SHIFT; |
<> | 161:2cc1468da177 | 1705 | vrefLow = (vrefLow & _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS1_MASK) |
<> | 161:2cc1468da177 | 1706 | >> _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS1_SHIFT; |
<> | 161:2cc1468da177 | 1707 | break; |
<> | 161:2cc1468da177 | 1708 | |
<> | 161:2cc1468da177 | 1709 | case ((2 << 8) | 1): |
<> | 161:2cc1468da177 | 1710 | vrefLow = DEVINFO->DCDCLPVCTRL3; |
<> | 161:2cc1468da177 | 1711 | vrefHigh = (vrefLow & _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS2_MASK) |
<> | 161:2cc1468da177 | 1712 | >> _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS2_SHIFT; |
<> | 161:2cc1468da177 | 1713 | vrefLow = (vrefLow & _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS2_MASK) |
<> | 161:2cc1468da177 | 1714 | >> _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS2_SHIFT; |
<> | 161:2cc1468da177 | 1715 | break; |
<> | 161:2cc1468da177 | 1716 | |
<> | 161:2cc1468da177 | 1717 | case ((3 << 8) | 1): |
<> | 161:2cc1468da177 | 1718 | vrefLow = DEVINFO->DCDCLPVCTRL3; |
<> | 161:2cc1468da177 | 1719 | vrefHigh = (vrefLow & _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS3_MASK) |
<> | 161:2cc1468da177 | 1720 | >> _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS3_SHIFT; |
<> | 161:2cc1468da177 | 1721 | vrefLow = (vrefLow & _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS3_MASK) |
<> | 161:2cc1468da177 | 1722 | >> _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS3_SHIFT; |
<> | 161:2cc1468da177 | 1723 | break; |
<> | 161:2cc1468da177 | 1724 | |
<> | 161:2cc1468da177 | 1725 | case ((0 << 8) | 0): |
<> | 161:2cc1468da177 | 1726 | vrefLow = DEVINFO->DCDCLPVCTRL0; |
<> | 161:2cc1468da177 | 1727 | vrefHigh = (vrefLow & _DEVINFO_DCDCLPVCTRL0_1V8LPATT0LPCMPBIAS0_MASK) |
<> | 161:2cc1468da177 | 1728 | >> _DEVINFO_DCDCLPVCTRL0_1V8LPATT0LPCMPBIAS0_SHIFT; |
<> | 161:2cc1468da177 | 1729 | vrefLow = (vrefLow & _DEVINFO_DCDCLPVCTRL0_1V2LPATT0LPCMPBIAS0_MASK) |
<> | 161:2cc1468da177 | 1730 | >> _DEVINFO_DCDCLPVCTRL0_1V2LPATT0LPCMPBIAS0_SHIFT; |
<> | 161:2cc1468da177 | 1731 | break; |
<> | 161:2cc1468da177 | 1732 | |
<> | 161:2cc1468da177 | 1733 | case ((1 << 8) | 0): |
<> | 161:2cc1468da177 | 1734 | vrefLow = DEVINFO->DCDCLPVCTRL0; |
<> | 161:2cc1468da177 | 1735 | vrefHigh = (vrefLow & _DEVINFO_DCDCLPVCTRL0_1V8LPATT0LPCMPBIAS1_MASK) |
<> | 161:2cc1468da177 | 1736 | >> _DEVINFO_DCDCLPVCTRL0_1V8LPATT0LPCMPBIAS1_SHIFT; |
<> | 161:2cc1468da177 | 1737 | vrefLow = (vrefLow & _DEVINFO_DCDCLPVCTRL0_1V2LPATT0LPCMPBIAS1_MASK) |
<> | 161:2cc1468da177 | 1738 | >> _DEVINFO_DCDCLPVCTRL0_1V2LPATT0LPCMPBIAS1_SHIFT; |
<> | 161:2cc1468da177 | 1739 | break; |
<> | 161:2cc1468da177 | 1740 | |
<> | 161:2cc1468da177 | 1741 | case ((2 << 8) | 0): |
<> | 161:2cc1468da177 | 1742 | vrefLow = DEVINFO->DCDCLPVCTRL1; |
<> | 161:2cc1468da177 | 1743 | vrefHigh = (vrefLow & _DEVINFO_DCDCLPVCTRL1_1V8LPATT0LPCMPBIAS2_MASK) |
<> | 161:2cc1468da177 | 1744 | >> _DEVINFO_DCDCLPVCTRL1_1V8LPATT0LPCMPBIAS2_SHIFT; |
<> | 161:2cc1468da177 | 1745 | vrefLow = (vrefLow & _DEVINFO_DCDCLPVCTRL1_1V2LPATT0LPCMPBIAS2_MASK) |
<> | 161:2cc1468da177 | 1746 | >> _DEVINFO_DCDCLPVCTRL1_1V2LPATT0LPCMPBIAS2_SHIFT; |
<> | 161:2cc1468da177 | 1747 | break; |
<> | 161:2cc1468da177 | 1748 | |
<> | 161:2cc1468da177 | 1749 | case ((3 << 8) | 0): |
<> | 161:2cc1468da177 | 1750 | vrefLow = DEVINFO->DCDCLPVCTRL1; |
<> | 161:2cc1468da177 | 1751 | vrefHigh = (vrefLow & _DEVINFO_DCDCLPVCTRL1_1V8LPATT0LPCMPBIAS3_MASK) |
<> | 161:2cc1468da177 | 1752 | >> _DEVINFO_DCDCLPVCTRL1_1V8LPATT0LPCMPBIAS3_SHIFT; |
<> | 161:2cc1468da177 | 1753 | vrefLow = (vrefLow & _DEVINFO_DCDCLPVCTRL1_1V2LPATT0LPCMPBIAS3_MASK) |
<> | 161:2cc1468da177 | 1754 | >> _DEVINFO_DCDCLPVCTRL1_1V2LPATT0LPCMPBIAS3_SHIFT; |
<> | 161:2cc1468da177 | 1755 | break; |
<> | 161:2cc1468da177 | 1756 | |
<> | 161:2cc1468da177 | 1757 | default: |
<> | 161:2cc1468da177 | 1758 | EFM_ASSERT(false); |
<> | 161:2cc1468da177 | 1759 | break; |
<> | 161:2cc1468da177 | 1760 | } |
<> | 161:2cc1468da177 | 1761 | *vrefL = vrefLow; |
<> | 161:2cc1468da177 | 1762 | *vrefH = vrefHigh; |
<> | 161:2cc1468da177 | 1763 | } |
<> | 161:2cc1468da177 | 1764 | |
<> | 144:ef7eb2e8f9f7 | 1765 | /** @endcond */ |
<> | 144:ef7eb2e8f9f7 | 1766 | |
<> | 144:ef7eb2e8f9f7 | 1767 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1768 | * @brief |
<> | 144:ef7eb2e8f9f7 | 1769 | * Set DCDC regulator operating mode |
<> | 144:ef7eb2e8f9f7 | 1770 | * |
<> | 144:ef7eb2e8f9f7 | 1771 | * @param[in] dcdcMode |
<> | 144:ef7eb2e8f9f7 | 1772 | * DCDC mode |
<> | 144:ef7eb2e8f9f7 | 1773 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 1774 | void EMU_DCDCModeSet(EMU_DcdcMode_TypeDef dcdcMode) |
<> | 144:ef7eb2e8f9f7 | 1775 | { |
AnnaBridge | 179:b0033dcd6934 | 1776 | uint32_t currentDcdcMode; |
AnnaBridge | 179:b0033dcd6934 | 1777 | |
AnnaBridge | 179:b0033dcd6934 | 1778 | /* Wait for any previous write sync to complete and read DCDC mode. */ |
AnnaBridge | 179:b0033dcd6934 | 1779 | while (EMU->DCDCSYNC & EMU_DCDCSYNC_DCDCCTRLBUSY) ; |
AnnaBridge | 179:b0033dcd6934 | 1780 | currentDcdcMode = (EMU->DCDCCTRL & _EMU_DCDCCTRL_DCDCMODE_MASK); |
<> | 150:02e0a0aed4ec | 1781 | |
AnnaBridge | 179:b0033dcd6934 | 1782 | /* Enable bypass current limiter when not in bypass mode to prevent |
AnnaBridge | 179:b0033dcd6934 | 1783 | excessive current between VREGVDD and DVDD supplies when reentering bypass mode. */ |
AnnaBridge | 179:b0033dcd6934 | 1784 | if (currentDcdcMode != EMU_DCDCCTRL_DCDCMODE_BYPASS) { |
AnnaBridge | 179:b0033dcd6934 | 1785 | BUS_RegBitWrite(&EMU->DCDCCLIMCTRL, _EMU_DCDCCLIMCTRL_BYPLIMEN_SHIFT, 1); |
AnnaBridge | 179:b0033dcd6934 | 1786 | } |
AnnaBridge | 179:b0033dcd6934 | 1787 | |
AnnaBridge | 179:b0033dcd6934 | 1788 | if ((EMU_DcdcMode_TypeDef)currentDcdcMode == dcdcMode) { |
AnnaBridge | 179:b0033dcd6934 | 1789 | /* Mode already set. If already in bypass, make sure bypass current limiter |
AnnaBridge | 179:b0033dcd6934 | 1790 | is disabled. */ |
AnnaBridge | 179:b0033dcd6934 | 1791 | if (dcdcMode == emuDcdcMode_Bypass) { |
AnnaBridge | 179:b0033dcd6934 | 1792 | BUS_RegBitWrite(&EMU->DCDCCLIMCTRL, _EMU_DCDCCLIMCTRL_BYPLIMEN_SHIFT, 0); |
AnnaBridge | 179:b0033dcd6934 | 1793 | } |
<> | 150:02e0a0aed4ec | 1794 | return; |
<> | 150:02e0a0aed4ec | 1795 | } |
<> | 150:02e0a0aed4ec | 1796 | |
<> | 161:2cc1468da177 | 1797 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) |
<> | 150:02e0a0aed4ec | 1798 | |
<> | 150:02e0a0aed4ec | 1799 | /* Fix for errata DCDC_E203 */ |
AnnaBridge | 179:b0033dcd6934 | 1800 | if ((currentDcdcMode == EMU_DCDCCTRL_DCDCMODE_BYPASS) |
AnnaBridge | 179:b0033dcd6934 | 1801 | && (dcdcMode == emuDcdcMode_LowNoise)) { |
<> | 150:02e0a0aed4ec | 1802 | errataFixDcdcHsState = errataFixDcdcHsBypassLn; |
<> | 150:02e0a0aed4ec | 1803 | } |
<> | 150:02e0a0aed4ec | 1804 | |
<> | 161:2cc1468da177 | 1805 | #else |
<> | 150:02e0a0aed4ec | 1806 | |
<> | 161:2cc1468da177 | 1807 | /* Fix for errata DCDC_E204 */ |
<> | 150:02e0a0aed4ec | 1808 | if (((currentDcdcMode == EMU_DCDCCTRL_DCDCMODE_OFF) || (currentDcdcMode == EMU_DCDCCTRL_DCDCMODE_BYPASS)) |
AnnaBridge | 179:b0033dcd6934 | 1809 | && ((dcdcMode == emuDcdcMode_LowPower) || (dcdcMode == emuDcdcMode_LowNoise))) { |
<> | 150:02e0a0aed4ec | 1810 | /* Always start in LOWNOISE mode and then switch to LOWPOWER mode once LOWNOISE startup is complete. */ |
<> | 150:02e0a0aed4ec | 1811 | EMU_IntClear(EMU_IFC_DCDCLNRUNNING); |
AnnaBridge | 179:b0033dcd6934 | 1812 | while (EMU->DCDCSYNC & EMU_DCDCSYNC_DCDCCTRLBUSY) ; |
<> | 150:02e0a0aed4ec | 1813 | EMU->DCDCCTRL = (EMU->DCDCCTRL & ~_EMU_DCDCCTRL_DCDCMODE_MASK) | EMU_DCDCCTRL_DCDCMODE_LOWNOISE; |
AnnaBridge | 179:b0033dcd6934 | 1814 | while (!(EMU_IntGet() & EMU_IF_DCDCLNRUNNING)) ; |
<> | 150:02e0a0aed4ec | 1815 | } |
<> | 150:02e0a0aed4ec | 1816 | #endif |
<> | 150:02e0a0aed4ec | 1817 | |
<> | 150:02e0a0aed4ec | 1818 | /* Set user requested mode. */ |
AnnaBridge | 179:b0033dcd6934 | 1819 | while (EMU->DCDCSYNC & EMU_DCDCSYNC_DCDCCTRLBUSY) ; |
<> | 144:ef7eb2e8f9f7 | 1820 | EMU->DCDCCTRL = (EMU->DCDCCTRL & ~_EMU_DCDCCTRL_DCDCMODE_MASK) | dcdcMode; |
AnnaBridge | 179:b0033dcd6934 | 1821 | |
AnnaBridge | 179:b0033dcd6934 | 1822 | /* Disable bypass current limiter after bypass mode is entered. |
AnnaBridge | 179:b0033dcd6934 | 1823 | Enable the limiter if any other mode is entered. */ |
AnnaBridge | 179:b0033dcd6934 | 1824 | while (EMU->DCDCSYNC & EMU_DCDCSYNC_DCDCCTRLBUSY) ; |
AnnaBridge | 179:b0033dcd6934 | 1825 | BUS_RegBitWrite(&EMU->DCDCCLIMCTRL, _EMU_DCDCCLIMCTRL_BYPLIMEN_SHIFT, dcdcMode == emuDcdcMode_Bypass ? 0 : 1); |
<> | 144:ef7eb2e8f9f7 | 1826 | } |
<> | 144:ef7eb2e8f9f7 | 1827 | |
<> | 144:ef7eb2e8f9f7 | 1828 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 1829 | * @brief |
<> | 161:2cc1468da177 | 1830 | * Set DCDC LN regulator conduction mode |
<> | 161:2cc1468da177 | 1831 | * |
<> | 161:2cc1468da177 | 1832 | * @param[in] conductionMode |
<> | 161:2cc1468da177 | 1833 | * DCDC LN conduction mode. |
<> | 161:2cc1468da177 | 1834 | * @param[in] rcoDefaultSet |
<> | 161:2cc1468da177 | 1835 | * The default DCDC RCO band for the conductionMode will be used if true. |
<> | 161:2cc1468da177 | 1836 | * Otherwise the current RCO configuration is used. |
<> | 161:2cc1468da177 | 1837 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1838 | void EMU_DCDCConductionModeSet(EMU_DcdcConductionMode_TypeDef conductionMode, bool rcoDefaultSet) |
<> | 161:2cc1468da177 | 1839 | { |
<> | 161:2cc1468da177 | 1840 | EMU_DcdcMode_TypeDef currentDcdcMode |
<> | 161:2cc1468da177 | 1841 | = (EMU_DcdcMode_TypeDef)(EMU->DCDCCTRL & _EMU_DCDCCTRL_DCDCMODE_MASK); |
<> | 161:2cc1468da177 | 1842 | EMU_DcdcLnRcoBand_TypeDef rcoBand |
<> | 161:2cc1468da177 | 1843 | = (EMU_DcdcLnRcoBand_TypeDef)((EMU->DCDCLNFREQCTRL & _EMU_DCDCLNFREQCTRL_RCOBAND_MASK) |
<> | 161:2cc1468da177 | 1844 | >> _EMU_DCDCLNFREQCTRL_RCOBAND_SHIFT); |
<> | 161:2cc1468da177 | 1845 | |
<> | 161:2cc1468da177 | 1846 | /* Set bypass mode and wait for bypass mode to settle before |
<> | 161:2cc1468da177 | 1847 | EMU_DCDCMISCCTRL_LNFORCECCM is set. Restore current DCDC mode. */ |
<> | 161:2cc1468da177 | 1848 | EMU_IntClear(EMU_IFC_DCDCINBYPASS); |
<> | 161:2cc1468da177 | 1849 | EMU_DCDCModeSet(emuDcdcMode_Bypass); |
AnnaBridge | 179:b0033dcd6934 | 1850 | while (EMU->DCDCSYNC & EMU_DCDCSYNC_DCDCCTRLBUSY) ; |
AnnaBridge | 179:b0033dcd6934 | 1851 | while (!(EMU_IntGet() & EMU_IF_DCDCINBYPASS)) ; |
AnnaBridge | 179:b0033dcd6934 | 1852 | if (conductionMode == emuDcdcConductionMode_DiscontinuousLN) { |
AnnaBridge | 179:b0033dcd6934 | 1853 | EMU->DCDCMISCCTRL &= ~EMU_DCDCMISCCTRL_LNFORCECCM; |
AnnaBridge | 179:b0033dcd6934 | 1854 | if (rcoDefaultSet) { |
<> | 161:2cc1468da177 | 1855 | EMU_DCDCLnRcoBandSet(emuDcdcLnRcoBand_3MHz); |
AnnaBridge | 179:b0033dcd6934 | 1856 | } else { |
<> | 161:2cc1468da177 | 1857 | /* emuDcdcConductionMode_DiscontinuousLN supports up to 4MHz LN RCO. */ |
<> | 161:2cc1468da177 | 1858 | EFM_ASSERT(rcoBand <= emuDcdcLnRcoBand_4MHz); |
<> | 161:2cc1468da177 | 1859 | } |
AnnaBridge | 179:b0033dcd6934 | 1860 | } else { |
<> | 161:2cc1468da177 | 1861 | EMU->DCDCMISCCTRL |= EMU_DCDCMISCCTRL_LNFORCECCM; |
AnnaBridge | 179:b0033dcd6934 | 1862 | if (rcoDefaultSet) { |
<> | 161:2cc1468da177 | 1863 | EMU_DCDCLnRcoBandSet(emuDcdcLnRcoBand_7MHz); |
<> | 161:2cc1468da177 | 1864 | } |
<> | 161:2cc1468da177 | 1865 | } |
<> | 161:2cc1468da177 | 1866 | EMU_DCDCModeSet(currentDcdcMode); |
<> | 161:2cc1468da177 | 1867 | /* Update slice configuration as it depends on conduction mode and RCO band. */ |
<> | 161:2cc1468da177 | 1868 | EMU_DCDCOptimizeSlice(dcdcEm01LoadCurrent_mA); |
<> | 161:2cc1468da177 | 1869 | } |
<> | 161:2cc1468da177 | 1870 | |
<> | 161:2cc1468da177 | 1871 | /***************************************************************************//** |
<> | 161:2cc1468da177 | 1872 | * @brief |
<> | 144:ef7eb2e8f9f7 | 1873 | * Configure DCDC regulator |
<> | 144:ef7eb2e8f9f7 | 1874 | * |
<> | 144:ef7eb2e8f9f7 | 1875 | * @note |
<> | 150:02e0a0aed4ec | 1876 | * If the power circuit is configured for NODCDC as described in Section |
<> | 150:02e0a0aed4ec | 1877 | * 11.3.4.3 of the Reference Manual, do not call this function. Instead call |
AnnaBridge | 179:b0033dcd6934 | 1878 | * @ref EMU_DCDCPowerOff(). |
<> | 144:ef7eb2e8f9f7 | 1879 | * |
<> | 144:ef7eb2e8f9f7 | 1880 | * @param[in] dcdcInit |
<> | 144:ef7eb2e8f9f7 | 1881 | * DCDC initialization structure |
<> | 144:ef7eb2e8f9f7 | 1882 | * |
<> | 144:ef7eb2e8f9f7 | 1883 | * @return |
<> | 144:ef7eb2e8f9f7 | 1884 | * True if initialization parameters are valid |
<> | 144:ef7eb2e8f9f7 | 1885 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 1886 | bool EMU_DCDCInit(const EMU_DCDCInit_TypeDef *dcdcInit) |
<> | 144:ef7eb2e8f9f7 | 1887 | { |
<> | 150:02e0a0aed4ec | 1888 | uint32_t lpCmpBiasSelEM234H; |
<> | 144:ef7eb2e8f9f7 | 1889 | |
<> | 161:2cc1468da177 | 1890 | #if defined(_EMU_PWRCFG_MASK) |
<> | 144:ef7eb2e8f9f7 | 1891 | /* Set external power configuration. This enables writing to the other |
<> | 144:ef7eb2e8f9f7 | 1892 | DCDC registers. */ |
<> | 161:2cc1468da177 | 1893 | EMU->PWRCFG = EMU_PWRCFG_PWRCFG_DCDCTODVDD; |
<> | 144:ef7eb2e8f9f7 | 1894 | |
<> | 144:ef7eb2e8f9f7 | 1895 | /* EMU->PWRCFG is write-once and POR reset only. Check that |
<> | 144:ef7eb2e8f9f7 | 1896 | we could set the desired power configuration. */ |
AnnaBridge | 179:b0033dcd6934 | 1897 | if ((EMU->PWRCFG & _EMU_PWRCFG_PWRCFG_MASK) != EMU_PWRCFG_PWRCFG_DCDCTODVDD) { |
<> | 144:ef7eb2e8f9f7 | 1898 | /* If this assert triggers unexpectedly, please power cycle the |
<> | 144:ef7eb2e8f9f7 | 1899 | kit to reset the power configuration. */ |
<> | 144:ef7eb2e8f9f7 | 1900 | EFM_ASSERT(false); |
<> | 144:ef7eb2e8f9f7 | 1901 | /* Return when assertions are disabled */ |
<> | 144:ef7eb2e8f9f7 | 1902 | return false; |
<> | 144:ef7eb2e8f9f7 | 1903 | } |
<> | 161:2cc1468da177 | 1904 | #endif |
<> | 144:ef7eb2e8f9f7 | 1905 | |
<> | 144:ef7eb2e8f9f7 | 1906 | /* Load DCDC calibration data from the DI page */ |
<> | 161:2cc1468da177 | 1907 | dcdcConstCalibrationLoad(); |
<> | 144:ef7eb2e8f9f7 | 1908 | |
<> | 144:ef7eb2e8f9f7 | 1909 | /* Check current parameters */ |
<> | 144:ef7eb2e8f9f7 | 1910 | EFM_ASSERT(dcdcInit->maxCurrent_mA <= 200); |
<> | 144:ef7eb2e8f9f7 | 1911 | EFM_ASSERT(dcdcInit->em01LoadCurrent_mA <= dcdcInit->maxCurrent_mA); |
<> | 150:02e0a0aed4ec | 1912 | EFM_ASSERT(dcdcInit->reverseCurrentControl <= 200); |
<> | 144:ef7eb2e8f9f7 | 1913 | |
AnnaBridge | 179:b0033dcd6934 | 1914 | if (dcdcInit->dcdcMode == emuDcdcMode_LowNoise) { |
<> | 161:2cc1468da177 | 1915 | /* DCDC low-noise supports max 200mA */ |
<> | 144:ef7eb2e8f9f7 | 1916 | EFM_ASSERT(dcdcInit->em01LoadCurrent_mA <= 200); |
<> | 144:ef7eb2e8f9f7 | 1917 | } |
<> | 161:2cc1468da177 | 1918 | #if (_SILICON_LABS_GECKO_INTERNAL_SDID != 80) |
AnnaBridge | 179:b0033dcd6934 | 1919 | else if (dcdcInit->dcdcMode == emuDcdcMode_LowPower) { |
<> | 161:2cc1468da177 | 1920 | /* Up to 10mA is supported for EM01-LP mode. */ |
<> | 150:02e0a0aed4ec | 1921 | EFM_ASSERT(dcdcInit->em01LoadCurrent_mA <= 10); |
<> | 150:02e0a0aed4ec | 1922 | } |
<> | 150:02e0a0aed4ec | 1923 | #endif |
<> | 144:ef7eb2e8f9f7 | 1924 | |
<> | 150:02e0a0aed4ec | 1925 | /* EM2/3/4 current above 10mA is not supported */ |
<> | 150:02e0a0aed4ec | 1926 | EFM_ASSERT(dcdcInit->em234LoadCurrent_uA <= 10000); |
<> | 144:ef7eb2e8f9f7 | 1927 | |
AnnaBridge | 179:b0033dcd6934 | 1928 | if (dcdcInit->em234LoadCurrent_uA < 75) { |
<> | 150:02e0a0aed4ec | 1929 | lpCmpBiasSelEM234H = 0; |
AnnaBridge | 179:b0033dcd6934 | 1930 | } else if (dcdcInit->em234LoadCurrent_uA < 500) { |
<> | 150:02e0a0aed4ec | 1931 | lpCmpBiasSelEM234H = 1 << _GENERIC_DCDCMISCCTRL_LPCMPBIASEM234H_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 1932 | } else if (dcdcInit->em234LoadCurrent_uA < 2500) { |
<> | 150:02e0a0aed4ec | 1933 | lpCmpBiasSelEM234H = 2 << _GENERIC_DCDCMISCCTRL_LPCMPBIASEM234H_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 1934 | } else { |
<> | 150:02e0a0aed4ec | 1935 | lpCmpBiasSelEM234H = 3 << _GENERIC_DCDCMISCCTRL_LPCMPBIASEM234H_SHIFT; |
<> | 150:02e0a0aed4ec | 1936 | } |
<> | 150:02e0a0aed4ec | 1937 | |
<> | 150:02e0a0aed4ec | 1938 | /* ==== THESE NEXT STEPS ARE STRONGLY ORDER DEPENDENT ==== */ |
<> | 144:ef7eb2e8f9f7 | 1939 | |
<> | 144:ef7eb2e8f9f7 | 1940 | /* Set DCDC low-power mode comparator bias selection */ |
<> | 150:02e0a0aed4ec | 1941 | |
<> | 150:02e0a0aed4ec | 1942 | /* 1. Set DCDC low-power mode comparator bias selection and forced CCM |
<> | 150:02e0a0aed4ec | 1943 | => Updates DCDCMISCCTRL_LNFORCECCM */ |
<> | 150:02e0a0aed4ec | 1944 | EMU->DCDCMISCCTRL = (EMU->DCDCMISCCTRL & ~(_GENERIC_DCDCMISCCTRL_LPCMPBIASEM234H_MASK |
<> | 144:ef7eb2e8f9f7 | 1945 | | _EMU_DCDCMISCCTRL_LNFORCECCM_MASK)) |
AnnaBridge | 179:b0033dcd6934 | 1946 | | ((uint32_t)lpCmpBiasSelEM234H |
AnnaBridge | 179:b0033dcd6934 | 1947 | | (dcdcInit->reverseCurrentControl >= 0 |
AnnaBridge | 179:b0033dcd6934 | 1948 | ? EMU_DCDCMISCCTRL_LNFORCECCM : 0)); |
<> | 150:02e0a0aed4ec | 1949 | #if defined(_EMU_DCDCLPEM01CFG_LPCMPBIASEM01_MASK) |
<> | 161:2cc1468da177 | 1950 | /* Only 10mA EM01-LP current is supported */ |
<> | 150:02e0a0aed4ec | 1951 | EMU->DCDCLPEM01CFG = (EMU->DCDCLPEM01CFG & ~_EMU_DCDCLPEM01CFG_LPCMPBIASEM01_MASK) |
<> | 161:2cc1468da177 | 1952 | | EMU_DCDCLPEM01CFG_LPCMPBIASEM01_BIAS3; |
<> | 150:02e0a0aed4ec | 1953 | #endif |
<> | 144:ef7eb2e8f9f7 | 1954 | |
<> | 150:02e0a0aed4ec | 1955 | /* 2. Set recommended and validated current optimization settings |
<> | 150:02e0a0aed4ec | 1956 | <= Depends on LNFORCECCM |
<> | 150:02e0a0aed4ec | 1957 | => Updates DCDCLNFREQCTRL_RCOBAND */ |
<> | 161:2cc1468da177 | 1958 | dcdcValidatedConfigSet(); |
<> | 144:ef7eb2e8f9f7 | 1959 | |
<> | 150:02e0a0aed4ec | 1960 | /* 3. Updated static currents and limits user data. |
AnnaBridge | 179:b0033dcd6934 | 1961 | Limiters are updated in @ref EMU_DCDCOptimizeSlice() */ |
<> | 150:02e0a0aed4ec | 1962 | userCurrentLimitsSet(dcdcInit->maxCurrent_mA, |
<> | 150:02e0a0aed4ec | 1963 | dcdcInit->reverseCurrentControl); |
<> | 150:02e0a0aed4ec | 1964 | dcdcEm01LoadCurrent_mA = dcdcInit->em01LoadCurrent_mA; |
<> | 144:ef7eb2e8f9f7 | 1965 | |
<> | 150:02e0a0aed4ec | 1966 | /* 4. Optimize LN slice based on given user input load current |
<> | 150:02e0a0aed4ec | 1967 | <= Depends on DCDCMISCCTRL_LNFORCECCM and DCDCLNFREQCTRL_RCOBAND |
<> | 150:02e0a0aed4ec | 1968 | <= Depends on dcdcInit->maxCurrent_mA and dcdcInit->reverseCurrentControl |
<> | 150:02e0a0aed4ec | 1969 | => Updates DCDCMISCCTRL_P/NFETCNT |
<> | 150:02e0a0aed4ec | 1970 | => Updates DCDCMISCCTRL_LNCLIMILIMSEL and DCDCMISCCTRL_LPCLIMILIMSEL |
<> | 150:02e0a0aed4ec | 1971 | => Updates DCDCZDETCTRL_ZDETILIMSEL */ |
<> | 144:ef7eb2e8f9f7 | 1972 | EMU_DCDCOptimizeSlice(dcdcInit->em01LoadCurrent_mA); |
<> | 144:ef7eb2e8f9f7 | 1973 | |
<> | 150:02e0a0aed4ec | 1974 | /* ======================================================= */ |
<> | 150:02e0a0aed4ec | 1975 | |
<> | 150:02e0a0aed4ec | 1976 | /* Set DCDC low noise mode compensator control register. */ |
<> | 150:02e0a0aed4ec | 1977 | compCtrlSet(dcdcInit->dcdcLnCompCtrl); |
<> | 150:02e0a0aed4ec | 1978 | |
<> | 144:ef7eb2e8f9f7 | 1979 | /* Set DCDC output voltage */ |
AnnaBridge | 179:b0033dcd6934 | 1980 | if (!EMU_DCDCOutputVoltageSet(dcdcInit->mVout, true, true)) { |
<> | 144:ef7eb2e8f9f7 | 1981 | EFM_ASSERT(false); |
<> | 144:ef7eb2e8f9f7 | 1982 | /* Return when assertions are disabled */ |
<> | 144:ef7eb2e8f9f7 | 1983 | return false; |
<> | 144:ef7eb2e8f9f7 | 1984 | } |
<> | 144:ef7eb2e8f9f7 | 1985 | |
AnnaBridge | 179:b0033dcd6934 | 1986 | #if (_SILICON_LABS_GECKO_INTERNAL_SDID == 80) |
<> | 150:02e0a0aed4ec | 1987 | /* Select analog peripheral power supply. This must be done before |
<> | 161:2cc1468da177 | 1988 | DCDC mode is set for all EFM32xG1 and EFR32xG1 devices. */ |
<> | 150:02e0a0aed4ec | 1989 | BUS_RegBitWrite(&EMU->PWRCTRL, |
<> | 150:02e0a0aed4ec | 1990 | _EMU_PWRCTRL_ANASW_SHIFT, |
<> | 150:02e0a0aed4ec | 1991 | dcdcInit->anaPeripheralPower ? 1 : 0); |
<> | 150:02e0a0aed4ec | 1992 | #endif |
<> | 150:02e0a0aed4ec | 1993 | |
<> | 161:2cc1468da177 | 1994 | #if defined(_EMU_PWRCTRL_REGPWRSEL_MASK) |
<> | 161:2cc1468da177 | 1995 | /* Select DVDD as input to the digital regulator. The switch to DVDD will take |
<> | 161:2cc1468da177 | 1996 | effect once the DCDC output is stable. */ |
<> | 161:2cc1468da177 | 1997 | EMU->PWRCTRL |= EMU_PWRCTRL_REGPWRSEL_DVDD; |
<> | 161:2cc1468da177 | 1998 | #endif |
<> | 161:2cc1468da177 | 1999 | |
<> | 150:02e0a0aed4ec | 2000 | /* Set EM0 DCDC operating mode. Output voltage set in |
AnnaBridge | 179:b0033dcd6934 | 2001 | @ref EMU_DCDCOutputVoltageSet() above takes effect if mode |
<> | 150:02e0a0aed4ec | 2002 | is changed from bypass/off mode. */ |
<> | 144:ef7eb2e8f9f7 | 2003 | EMU_DCDCModeSet(dcdcInit->dcdcMode); |
<> | 144:ef7eb2e8f9f7 | 2004 | |
AnnaBridge | 179:b0033dcd6934 | 2005 | #if (_SILICON_LABS_GECKO_INTERNAL_SDID != 80) |
<> | 150:02e0a0aed4ec | 2006 | /* Select analog peripheral power supply. This must be done after |
<> | 161:2cc1468da177 | 2007 | DCDC mode is set for all devices other than EFM32xG1 and EFR32xG1. */ |
<> | 150:02e0a0aed4ec | 2008 | BUS_RegBitWrite(&EMU->PWRCTRL, |
<> | 150:02e0a0aed4ec | 2009 | _EMU_PWRCTRL_ANASW_SHIFT, |
<> | 150:02e0a0aed4ec | 2010 | dcdcInit->anaPeripheralPower ? 1 : 0); |
<> | 150:02e0a0aed4ec | 2011 | #endif |
<> | 144:ef7eb2e8f9f7 | 2012 | |
<> | 144:ef7eb2e8f9f7 | 2013 | return true; |
<> | 144:ef7eb2e8f9f7 | 2014 | } |
<> | 144:ef7eb2e8f9f7 | 2015 | |
<> | 144:ef7eb2e8f9f7 | 2016 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2017 | * @brief |
<> | 144:ef7eb2e8f9f7 | 2018 | * Set DCDC output voltage |
<> | 144:ef7eb2e8f9f7 | 2019 | * |
<> | 144:ef7eb2e8f9f7 | 2020 | * @param[in] mV |
<> | 144:ef7eb2e8f9f7 | 2021 | * Target DCDC output voltage in mV |
<> | 144:ef7eb2e8f9f7 | 2022 | * |
<> | 144:ef7eb2e8f9f7 | 2023 | * @return |
<> | 144:ef7eb2e8f9f7 | 2024 | * True if the mV parameter is valid |
<> | 144:ef7eb2e8f9f7 | 2025 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 2026 | bool EMU_DCDCOutputVoltageSet(uint32_t mV, |
<> | 144:ef7eb2e8f9f7 | 2027 | bool setLpVoltage, |
<> | 144:ef7eb2e8f9f7 | 2028 | bool setLnVoltage) |
<> | 144:ef7eb2e8f9f7 | 2029 | { |
AnnaBridge | 179:b0033dcd6934 | 2030 | #if defined(_DEVINFO_DCDCLNVCTRL0_3V0LNATT1_MASK) |
<> | 144:ef7eb2e8f9f7 | 2031 | |
<> | 161:2cc1468da177 | 2032 | #define DCDC_TRIM_MODES ((uint8_t)dcdcTrimMode_LN + 1) |
<> | 144:ef7eb2e8f9f7 | 2033 | bool validOutVoltage; |
<> | 161:2cc1468da177 | 2034 | bool attenuationSet; |
<> | 144:ef7eb2e8f9f7 | 2035 | uint32_t mVlow = 0; |
<> | 144:ef7eb2e8f9f7 | 2036 | uint32_t mVhigh = 0; |
<> | 161:2cc1468da177 | 2037 | uint32_t mVdiff; |
AnnaBridge | 179:b0033dcd6934 | 2038 | uint32_t vrefVal[DCDC_TRIM_MODES] = { 0 }; |
AnnaBridge | 179:b0033dcd6934 | 2039 | uint32_t vrefLow[DCDC_TRIM_MODES] = { 0 }; |
AnnaBridge | 179:b0033dcd6934 | 2040 | uint32_t vrefHigh[DCDC_TRIM_MODES] = { 0 }; |
AnnaBridge | 179:b0033dcd6934 | 2041 | uint8_t lpcmpBias[DCDC_TRIM_MODES] = { 0 }; |
<> | 144:ef7eb2e8f9f7 | 2042 | |
<> | 144:ef7eb2e8f9f7 | 2043 | /* Check that the set voltage is within valid range. |
<> | 144:ef7eb2e8f9f7 | 2044 | Voltages are obtained from the datasheet. */ |
<> | 161:2cc1468da177 | 2045 | validOutVoltage = ((mV >= PWRCFG_DCDCTODVDD_VMIN) |
<> | 161:2cc1468da177 | 2046 | && (mV <= PWRCFG_DCDCTODVDD_VMAX)); |
<> | 144:ef7eb2e8f9f7 | 2047 | |
AnnaBridge | 179:b0033dcd6934 | 2048 | if (!validOutVoltage) { |
<> | 144:ef7eb2e8f9f7 | 2049 | EFM_ASSERT(false); |
<> | 144:ef7eb2e8f9f7 | 2050 | /* Return when assertions are disabled */ |
<> | 144:ef7eb2e8f9f7 | 2051 | return false; |
<> | 144:ef7eb2e8f9f7 | 2052 | } |
<> | 144:ef7eb2e8f9f7 | 2053 | |
<> | 161:2cc1468da177 | 2054 | /* Set attenuation to use and low/high range. */ |
<> | 161:2cc1468da177 | 2055 | attenuationSet = (mV > 1800); |
AnnaBridge | 179:b0033dcd6934 | 2056 | if (attenuationSet) { |
<> | 161:2cc1468da177 | 2057 | mVlow = 1800; |
<> | 161:2cc1468da177 | 2058 | mVhigh = 3000; |
<> | 161:2cc1468da177 | 2059 | mVdiff = mVhigh - mVlow; |
AnnaBridge | 179:b0033dcd6934 | 2060 | } else { |
<> | 161:2cc1468da177 | 2061 | mVlow = 1200; |
<> | 161:2cc1468da177 | 2062 | mVhigh = 1800; |
<> | 161:2cc1468da177 | 2063 | mVdiff = mVhigh - mVlow; |
<> | 161:2cc1468da177 | 2064 | } |
<> | 144:ef7eb2e8f9f7 | 2065 | |
AnnaBridge | 179:b0033dcd6934 | 2066 | /* Get 2-point calib data from DEVINFO */ |
AnnaBridge | 179:b0033dcd6934 | 2067 | |
AnnaBridge | 179:b0033dcd6934 | 2068 | /* LN mode */ |
AnnaBridge | 179:b0033dcd6934 | 2069 | if (attenuationSet) { |
AnnaBridge | 179:b0033dcd6934 | 2070 | vrefLow[dcdcTrimMode_LN] = DEVINFO->DCDCLNVCTRL0; |
AnnaBridge | 179:b0033dcd6934 | 2071 | vrefHigh[dcdcTrimMode_LN] = (vrefLow[dcdcTrimMode_LN] & _DEVINFO_DCDCLNVCTRL0_3V0LNATT1_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2072 | >> _DEVINFO_DCDCLNVCTRL0_3V0LNATT1_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2073 | vrefLow[dcdcTrimMode_LN] = (vrefLow[dcdcTrimMode_LN] & _DEVINFO_DCDCLNVCTRL0_1V8LNATT1_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2074 | >> _DEVINFO_DCDCLNVCTRL0_1V8LNATT1_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2075 | } else { |
AnnaBridge | 179:b0033dcd6934 | 2076 | vrefLow[dcdcTrimMode_LN] = DEVINFO->DCDCLNVCTRL0; |
AnnaBridge | 179:b0033dcd6934 | 2077 | vrefHigh[dcdcTrimMode_LN] = (vrefLow[dcdcTrimMode_LN] & _DEVINFO_DCDCLNVCTRL0_1V8LNATT0_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2078 | >> _DEVINFO_DCDCLNVCTRL0_1V8LNATT0_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2079 | vrefLow[dcdcTrimMode_LN] = (vrefLow[dcdcTrimMode_LN] & _DEVINFO_DCDCLNVCTRL0_1V2LNATT0_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2080 | >> _DEVINFO_DCDCLNVCTRL0_1V2LNATT0_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2081 | } |
<> | 144:ef7eb2e8f9f7 | 2082 | |
AnnaBridge | 179:b0033dcd6934 | 2083 | /* LP EM234H mode */ |
AnnaBridge | 179:b0033dcd6934 | 2084 | lpcmpBias[dcdcTrimMode_EM234H_LP] = (EMU->DCDCMISCCTRL & _GENERIC_DCDCMISCCTRL_LPCMPBIASEM234H_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2085 | >> _GENERIC_DCDCMISCCTRL_LPCMPBIASEM234H_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2086 | lpGetDevinfoVrefLowHigh(&vrefLow[dcdcTrimMode_EM234H_LP], |
AnnaBridge | 179:b0033dcd6934 | 2087 | &vrefHigh[dcdcTrimMode_EM234H_LP], |
AnnaBridge | 179:b0033dcd6934 | 2088 | attenuationSet, |
AnnaBridge | 179:b0033dcd6934 | 2089 | lpcmpBias[dcdcTrimMode_EM234H_LP]); |
<> | 144:ef7eb2e8f9f7 | 2090 | |
AnnaBridge | 179:b0033dcd6934 | 2091 | #if defined(_EMU_DCDCLPEM01CFG_LPCMPBIASEM01_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2092 | /* LP EM01 mode */ |
AnnaBridge | 179:b0033dcd6934 | 2093 | lpcmpBias[dcdcTrimMode_EM01_LP] = (EMU->DCDCLPEM01CFG & _EMU_DCDCLPEM01CFG_LPCMPBIASEM01_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2094 | >> _EMU_DCDCLPEM01CFG_LPCMPBIASEM01_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2095 | lpGetDevinfoVrefLowHigh(&vrefLow[dcdcTrimMode_EM01_LP], |
AnnaBridge | 179:b0033dcd6934 | 2096 | &vrefHigh[dcdcTrimMode_EM01_LP], |
AnnaBridge | 179:b0033dcd6934 | 2097 | attenuationSet, |
AnnaBridge | 179:b0033dcd6934 | 2098 | lpcmpBias[dcdcTrimMode_EM01_LP]); |
<> | 161:2cc1468da177 | 2099 | #endif |
<> | 144:ef7eb2e8f9f7 | 2100 | |
AnnaBridge | 179:b0033dcd6934 | 2101 | /* Calculate output voltage trims */ |
AnnaBridge | 179:b0033dcd6934 | 2102 | vrefVal[dcdcTrimMode_LN] = ((mV - mVlow) * (vrefHigh[dcdcTrimMode_LN] - vrefLow[dcdcTrimMode_LN])) |
AnnaBridge | 179:b0033dcd6934 | 2103 | / mVdiff; |
AnnaBridge | 179:b0033dcd6934 | 2104 | vrefVal[dcdcTrimMode_LN] += vrefLow[dcdcTrimMode_LN]; |
<> | 161:2cc1468da177 | 2105 | |
AnnaBridge | 179:b0033dcd6934 | 2106 | vrefVal[dcdcTrimMode_EM234H_LP] = ((mV - mVlow) * (vrefHigh[dcdcTrimMode_EM234H_LP] - vrefLow[dcdcTrimMode_EM234H_LP])) |
AnnaBridge | 179:b0033dcd6934 | 2107 | / mVdiff; |
AnnaBridge | 179:b0033dcd6934 | 2108 | vrefVal[dcdcTrimMode_EM234H_LP] += vrefLow[dcdcTrimMode_EM234H_LP]; |
<> | 161:2cc1468da177 | 2109 | |
AnnaBridge | 179:b0033dcd6934 | 2110 | #if defined(_EMU_DCDCLPEM01CFG_LPCMPBIASEM01_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2111 | vrefVal[dcdcTrimMode_EM01_LP] = ((mV - mVlow) * (vrefHigh[dcdcTrimMode_EM01_LP] - vrefLow[dcdcTrimMode_EM01_LP])) |
AnnaBridge | 179:b0033dcd6934 | 2112 | / mVdiff; |
AnnaBridge | 179:b0033dcd6934 | 2113 | vrefVal[dcdcTrimMode_EM01_LP] += vrefLow[dcdcTrimMode_EM01_LP]; |
<> | 161:2cc1468da177 | 2114 | #endif |
<> | 161:2cc1468da177 | 2115 | |
<> | 161:2cc1468da177 | 2116 | /* Range checks */ |
<> | 161:2cc1468da177 | 2117 | if ((vrefVal[dcdcTrimMode_LN] > vrefHigh[dcdcTrimMode_LN]) |
<> | 161:2cc1468da177 | 2118 | || (vrefVal[dcdcTrimMode_LN] < vrefLow[dcdcTrimMode_LN]) |
AnnaBridge | 179:b0033dcd6934 | 2119 | #if defined(_EMU_DCDCLPEM01CFG_LPCMPBIASEM01_MASK) |
<> | 161:2cc1468da177 | 2120 | || (vrefVal[dcdcTrimMode_EM01_LP] > vrefHigh[dcdcTrimMode_EM01_LP]) |
<> | 161:2cc1468da177 | 2121 | || (vrefVal[dcdcTrimMode_EM01_LP] < vrefLow[dcdcTrimMode_EM01_LP]) |
<> | 161:2cc1468da177 | 2122 | #endif |
<> | 161:2cc1468da177 | 2123 | || (vrefVal[dcdcTrimMode_EM234H_LP] > vrefHigh[dcdcTrimMode_EM234H_LP]) |
AnnaBridge | 179:b0033dcd6934 | 2124 | || (vrefVal[dcdcTrimMode_EM234H_LP] < vrefLow[dcdcTrimMode_EM234H_LP])) { |
<> | 161:2cc1468da177 | 2125 | EFM_ASSERT(false); |
<> | 161:2cc1468da177 | 2126 | /* Return when assertions are disabled */ |
<> | 161:2cc1468da177 | 2127 | return false; |
<> | 161:2cc1468da177 | 2128 | } |
<> | 161:2cc1468da177 | 2129 | |
<> | 161:2cc1468da177 | 2130 | /* Update output voltage tuning for LN and LP modes. */ |
AnnaBridge | 179:b0033dcd6934 | 2131 | if (setLnVoltage) { |
<> | 161:2cc1468da177 | 2132 | EMU->DCDCLNVCTRL = (EMU->DCDCLNVCTRL & ~(_EMU_DCDCLNVCTRL_LNVREF_MASK | _EMU_DCDCLNVCTRL_LNATT_MASK)) |
AnnaBridge | 179:b0033dcd6934 | 2133 | | (vrefVal[dcdcTrimMode_LN] << _EMU_DCDCLNVCTRL_LNVREF_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2134 | | (attenuationSet ? EMU_DCDCLNVCTRL_LNATT : 0); |
<> | 161:2cc1468da177 | 2135 | } |
<> | 161:2cc1468da177 | 2136 | |
AnnaBridge | 179:b0033dcd6934 | 2137 | if (setLpVoltage) { |
<> | 161:2cc1468da177 | 2138 | /* Load LP EM234H comparator hysteresis calibration */ |
AnnaBridge | 179:b0033dcd6934 | 2139 | if (!(lpCmpHystCalibrationLoad(attenuationSet, lpcmpBias[dcdcTrimMode_EM234H_LP], dcdcTrimMode_EM234H_LP))) { |
<> | 144:ef7eb2e8f9f7 | 2140 | EFM_ASSERT(false); |
<> | 144:ef7eb2e8f9f7 | 2141 | /* Return when assertions are disabled */ |
<> | 144:ef7eb2e8f9f7 | 2142 | return false; |
<> | 144:ef7eb2e8f9f7 | 2143 | } |
<> | 144:ef7eb2e8f9f7 | 2144 | |
AnnaBridge | 179:b0033dcd6934 | 2145 | #if defined(_EMU_DCDCLPEM01CFG_LPCMPBIASEM01_MASK) |
<> | 161:2cc1468da177 | 2146 | /* Load LP EM234H comparator hysteresis calibration */ |
AnnaBridge | 179:b0033dcd6934 | 2147 | if (!(lpCmpHystCalibrationLoad(attenuationSet, lpcmpBias[dcdcTrimMode_EM01_LP], dcdcTrimMode_EM01_LP))) { |
<> | 144:ef7eb2e8f9f7 | 2148 | EFM_ASSERT(false); |
<> | 144:ef7eb2e8f9f7 | 2149 | /* Return when assertions are disabled */ |
<> | 144:ef7eb2e8f9f7 | 2150 | return false; |
<> | 144:ef7eb2e8f9f7 | 2151 | } |
<> | 144:ef7eb2e8f9f7 | 2152 | |
<> | 161:2cc1468da177 | 2153 | /* LP VREF is that max of trims for EM01 and EM234H. */ |
<> | 161:2cc1468da177 | 2154 | vrefVal[dcdcTrimMode_EM234H_LP] = SL_MAX(vrefVal[dcdcTrimMode_EM234H_LP], vrefVal[dcdcTrimMode_EM01_LP]); |
<> | 161:2cc1468da177 | 2155 | #endif |
<> | 161:2cc1468da177 | 2156 | |
<> | 161:2cc1468da177 | 2157 | /* Don't exceed max available code as specified in the reference manual for EMU_DCDCLPVCTRL. */ |
<> | 161:2cc1468da177 | 2158 | vrefVal[dcdcTrimMode_EM234H_LP] = SL_MIN(vrefVal[dcdcTrimMode_EM234H_LP], 0xE7U); |
<> | 161:2cc1468da177 | 2159 | EMU->DCDCLPVCTRL = (EMU->DCDCLPVCTRL & ~(_EMU_DCDCLPVCTRL_LPVREF_MASK | _EMU_DCDCLPVCTRL_LPATT_MASK)) |
AnnaBridge | 179:b0033dcd6934 | 2160 | | (vrefVal[dcdcTrimMode_EM234H_LP] << _EMU_DCDCLPVCTRL_LPVREF_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2161 | | (attenuationSet ? EMU_DCDCLPVCTRL_LPATT : 0); |
<> | 144:ef7eb2e8f9f7 | 2162 | } |
<> | 144:ef7eb2e8f9f7 | 2163 | #endif |
<> | 144:ef7eb2e8f9f7 | 2164 | return true; |
<> | 144:ef7eb2e8f9f7 | 2165 | } |
<> | 144:ef7eb2e8f9f7 | 2166 | |
<> | 144:ef7eb2e8f9f7 | 2167 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2168 | * @brief |
<> | 144:ef7eb2e8f9f7 | 2169 | * Optimize DCDC slice count based on the estimated average load current |
<> | 144:ef7eb2e8f9f7 | 2170 | * in EM0 |
<> | 144:ef7eb2e8f9f7 | 2171 | * |
<> | 150:02e0a0aed4ec | 2172 | * @param[in] em0LoadCurrent_mA |
<> | 144:ef7eb2e8f9f7 | 2173 | * Estimated average EM0 load current in mA. |
<> | 144:ef7eb2e8f9f7 | 2174 | ******************************************************************************/ |
<> | 150:02e0a0aed4ec | 2175 | void EMU_DCDCOptimizeSlice(uint32_t em0LoadCurrent_mA) |
<> | 144:ef7eb2e8f9f7 | 2176 | { |
<> | 144:ef7eb2e8f9f7 | 2177 | uint32_t sliceCount = 0; |
<> | 144:ef7eb2e8f9f7 | 2178 | uint32_t rcoBand = (EMU->DCDCLNFREQCTRL & _EMU_DCDCLNFREQCTRL_RCOBAND_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2179 | >> _EMU_DCDCLNFREQCTRL_RCOBAND_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 2180 | |
<> | 144:ef7eb2e8f9f7 | 2181 | /* Set recommended slice count */ |
AnnaBridge | 179:b0033dcd6934 | 2182 | if ((EMU->DCDCMISCCTRL & _EMU_DCDCMISCCTRL_LNFORCECCM_MASK) && (rcoBand >= emuDcdcLnRcoBand_5MHz)) { |
AnnaBridge | 179:b0033dcd6934 | 2183 | if (em0LoadCurrent_mA < 20) { |
<> | 144:ef7eb2e8f9f7 | 2184 | sliceCount = 4; |
AnnaBridge | 179:b0033dcd6934 | 2185 | } else if ((em0LoadCurrent_mA >= 20) && (em0LoadCurrent_mA < 40)) { |
<> | 144:ef7eb2e8f9f7 | 2186 | sliceCount = 8; |
AnnaBridge | 179:b0033dcd6934 | 2187 | } else { |
<> | 144:ef7eb2e8f9f7 | 2188 | sliceCount = 16; |
<> | 144:ef7eb2e8f9f7 | 2189 | } |
AnnaBridge | 179:b0033dcd6934 | 2190 | } else if ((!(EMU->DCDCMISCCTRL & _EMU_DCDCMISCCTRL_LNFORCECCM_MASK)) && (rcoBand <= emuDcdcLnRcoBand_4MHz)) { |
AnnaBridge | 179:b0033dcd6934 | 2191 | if (em0LoadCurrent_mA < 10) { |
<> | 144:ef7eb2e8f9f7 | 2192 | sliceCount = 4; |
AnnaBridge | 179:b0033dcd6934 | 2193 | } else if ((em0LoadCurrent_mA >= 10) && (em0LoadCurrent_mA < 20)) { |
<> | 144:ef7eb2e8f9f7 | 2194 | sliceCount = 8; |
AnnaBridge | 179:b0033dcd6934 | 2195 | } else { |
<> | 144:ef7eb2e8f9f7 | 2196 | sliceCount = 16; |
<> | 144:ef7eb2e8f9f7 | 2197 | } |
AnnaBridge | 179:b0033dcd6934 | 2198 | } else if ((EMU->DCDCMISCCTRL & _EMU_DCDCMISCCTRL_LNFORCECCM_MASK) && (rcoBand <= emuDcdcLnRcoBand_4MHz)) { |
AnnaBridge | 179:b0033dcd6934 | 2199 | if (em0LoadCurrent_mA < 40) { |
<> | 144:ef7eb2e8f9f7 | 2200 | sliceCount = 8; |
AnnaBridge | 179:b0033dcd6934 | 2201 | } else { |
<> | 144:ef7eb2e8f9f7 | 2202 | sliceCount = 16; |
<> | 144:ef7eb2e8f9f7 | 2203 | } |
AnnaBridge | 179:b0033dcd6934 | 2204 | } else { |
AnnaBridge | 179:b0033dcd6934 | 2205 | /* This configuration is not recommended. @ref EMU_DCDCInit() applies a recommended |
<> | 144:ef7eb2e8f9f7 | 2206 | configuration. */ |
<> | 144:ef7eb2e8f9f7 | 2207 | EFM_ASSERT(false); |
<> | 144:ef7eb2e8f9f7 | 2208 | } |
<> | 144:ef7eb2e8f9f7 | 2209 | |
<> | 150:02e0a0aed4ec | 2210 | /* The selected slices are PSLICESEL + 1 */ |
<> | 144:ef7eb2e8f9f7 | 2211 | sliceCount--; |
<> | 144:ef7eb2e8f9f7 | 2212 | |
<> | 144:ef7eb2e8f9f7 | 2213 | /* Apply slice count to both N and P slice */ |
<> | 144:ef7eb2e8f9f7 | 2214 | sliceCount = (sliceCount << _EMU_DCDCMISCCTRL_PFETCNT_SHIFT |
<> | 144:ef7eb2e8f9f7 | 2215 | | sliceCount << _EMU_DCDCMISCCTRL_NFETCNT_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 2216 | EMU->DCDCMISCCTRL = (EMU->DCDCMISCCTRL & ~(_EMU_DCDCMISCCTRL_PFETCNT_MASK |
<> | 144:ef7eb2e8f9f7 | 2217 | | _EMU_DCDCMISCCTRL_NFETCNT_MASK)) |
<> | 144:ef7eb2e8f9f7 | 2218 | | sliceCount; |
<> | 144:ef7eb2e8f9f7 | 2219 | |
<> | 150:02e0a0aed4ec | 2220 | /* Update current limiters */ |
<> | 150:02e0a0aed4ec | 2221 | currentLimitersUpdate(); |
<> | 144:ef7eb2e8f9f7 | 2222 | } |
<> | 144:ef7eb2e8f9f7 | 2223 | |
<> | 144:ef7eb2e8f9f7 | 2224 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2225 | * @brief |
<> | 144:ef7eb2e8f9f7 | 2226 | * Set DCDC Low-noise RCO band. |
<> | 144:ef7eb2e8f9f7 | 2227 | * |
<> | 144:ef7eb2e8f9f7 | 2228 | * @param[in] band |
<> | 144:ef7eb2e8f9f7 | 2229 | * RCO band to set. |
<> | 144:ef7eb2e8f9f7 | 2230 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 2231 | void EMU_DCDCLnRcoBandSet(EMU_DcdcLnRcoBand_TypeDef band) |
<> | 144:ef7eb2e8f9f7 | 2232 | { |
<> | 150:02e0a0aed4ec | 2233 | uint32_t forcedCcm; |
<> | 150:02e0a0aed4ec | 2234 | forcedCcm = BUS_RegBitRead(&EMU->DCDCMISCCTRL, _EMU_DCDCMISCCTRL_LNFORCECCM_SHIFT); |
<> | 150:02e0a0aed4ec | 2235 | |
<> | 150:02e0a0aed4ec | 2236 | /* DCM mode supports up to 4MHz LN RCO. */ |
<> | 150:02e0a0aed4ec | 2237 | EFM_ASSERT((!forcedCcm && band <= emuDcdcLnRcoBand_4MHz) || forcedCcm); |
<> | 150:02e0a0aed4ec | 2238 | |
<> | 144:ef7eb2e8f9f7 | 2239 | EMU->DCDCLNFREQCTRL = (EMU->DCDCLNFREQCTRL & ~_EMU_DCDCLNFREQCTRL_RCOBAND_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2240 | | (band << _EMU_DCDCLNFREQCTRL_RCOBAND_SHIFT); |
<> | 150:02e0a0aed4ec | 2241 | |
<> | 150:02e0a0aed4ec | 2242 | /* Update slice configuration as this depends on the RCO band. */ |
<> | 150:02e0a0aed4ec | 2243 | EMU_DCDCOptimizeSlice(dcdcEm01LoadCurrent_mA); |
<> | 144:ef7eb2e8f9f7 | 2244 | } |
<> | 144:ef7eb2e8f9f7 | 2245 | |
<> | 144:ef7eb2e8f9f7 | 2246 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2247 | * @brief |
<> | 144:ef7eb2e8f9f7 | 2248 | * Power off the DCDC regulator. |
<> | 144:ef7eb2e8f9f7 | 2249 | * |
<> | 144:ef7eb2e8f9f7 | 2250 | * @details |
<> | 144:ef7eb2e8f9f7 | 2251 | * This function powers off the DCDC controller. This function should only be |
<> | 144:ef7eb2e8f9f7 | 2252 | * used if the external power circuit is wired for no DCDC. If the external power |
AnnaBridge | 179:b0033dcd6934 | 2253 | * circuit is wired for DCDC usage, then use @ref EMU_DCDCInit() and set the |
<> | 144:ef7eb2e8f9f7 | 2254 | * DCDC in bypass mode to disable DCDC. |
<> | 144:ef7eb2e8f9f7 | 2255 | * |
<> | 144:ef7eb2e8f9f7 | 2256 | * @return |
<> | 144:ef7eb2e8f9f7 | 2257 | * Return false if the DCDC could not be disabled. |
<> | 144:ef7eb2e8f9f7 | 2258 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 2259 | bool EMU_DCDCPowerOff(void) |
<> | 144:ef7eb2e8f9f7 | 2260 | { |
<> | 150:02e0a0aed4ec | 2261 | bool dcdcModeSet; |
<> | 150:02e0a0aed4ec | 2262 | |
<> | 161:2cc1468da177 | 2263 | #if defined(_EMU_PWRCFG_MASK) |
<> | 150:02e0a0aed4ec | 2264 | /* Set DCDCTODVDD only to enable write access to EMU->DCDCCTRL */ |
<> | 150:02e0a0aed4ec | 2265 | EMU->PWRCFG = EMU_PWRCFG_PWRCFG_DCDCTODVDD; |
<> | 161:2cc1468da177 | 2266 | #endif |
<> | 150:02e0a0aed4ec | 2267 | |
<> | 150:02e0a0aed4ec | 2268 | /* Select DVDD as input to the digital regulator */ |
<> | 161:2cc1468da177 | 2269 | #if defined(EMU_PWRCTRL_IMMEDIATEPWRSWITCH) |
<> | 161:2cc1468da177 | 2270 | EMU->PWRCTRL |= EMU_PWRCTRL_REGPWRSEL_DVDD | EMU_PWRCTRL_IMMEDIATEPWRSWITCH; |
<> | 161:2cc1468da177 | 2271 | #elif defined(EMU_PWRCTRL_REGPWRSEL_DVDD) |
<> | 150:02e0a0aed4ec | 2272 | EMU->PWRCTRL |= EMU_PWRCTRL_REGPWRSEL_DVDD; |
<> | 150:02e0a0aed4ec | 2273 | #endif |
<> | 144:ef7eb2e8f9f7 | 2274 | |
<> | 150:02e0a0aed4ec | 2275 | /* Set DCDC to OFF and disable LP in EM2/3/4. Verify that the required |
<> | 150:02e0a0aed4ec | 2276 | mode could be set. */ |
AnnaBridge | 179:b0033dcd6934 | 2277 | while (EMU->DCDCSYNC & EMU_DCDCSYNC_DCDCCTRLBUSY) ; |
<> | 144:ef7eb2e8f9f7 | 2278 | EMU->DCDCCTRL = EMU_DCDCCTRL_DCDCMODE_OFF; |
<> | 150:02e0a0aed4ec | 2279 | |
<> | 150:02e0a0aed4ec | 2280 | dcdcModeSet = (EMU->DCDCCTRL == EMU_DCDCCTRL_DCDCMODE_OFF); |
<> | 150:02e0a0aed4ec | 2281 | EFM_ASSERT(dcdcModeSet); |
<> | 150:02e0a0aed4ec | 2282 | |
<> | 150:02e0a0aed4ec | 2283 | return dcdcModeSet; |
<> | 144:ef7eb2e8f9f7 | 2284 | } |
<> | 144:ef7eb2e8f9f7 | 2285 | #endif |
<> | 144:ef7eb2e8f9f7 | 2286 | |
AnnaBridge | 179:b0033dcd6934 | 2287 | #if defined(EMU_STATUS_VMONRDY) |
<> | 144:ef7eb2e8f9f7 | 2288 | /** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */ |
AnnaBridge | 179:b0033dcd6934 | 2289 | |
AnnaBridge | 179:b0033dcd6934 | 2290 | /***************************************************************************//** |
AnnaBridge | 179:b0033dcd6934 | 2291 | * @brief |
AnnaBridge | 179:b0033dcd6934 | 2292 | * Get calibrated threshold value. |
AnnaBridge | 179:b0033dcd6934 | 2293 | * |
AnnaBridge | 179:b0033dcd6934 | 2294 | * @details |
AnnaBridge | 179:b0033dcd6934 | 2295 | * All VMON channels have two calibration fields in the DI page that |
AnnaBridge | 179:b0033dcd6934 | 2296 | * describes the threshold at 1.86V and 2.98V. This function will convert |
AnnaBridge | 179:b0033dcd6934 | 2297 | * the uncalibrated input voltage threshold in millivolts into a calibrated |
AnnaBridge | 179:b0033dcd6934 | 2298 | * threshold. |
AnnaBridge | 179:b0033dcd6934 | 2299 | * |
AnnaBridge | 179:b0033dcd6934 | 2300 | * @param[in] channel |
AnnaBridge | 179:b0033dcd6934 | 2301 | * VMON channel |
AnnaBridge | 179:b0033dcd6934 | 2302 | * |
AnnaBridge | 179:b0033dcd6934 | 2303 | * @param[in] threshold |
AnnaBridge | 179:b0033dcd6934 | 2304 | * Desired threshold in millivolts. |
AnnaBridge | 179:b0033dcd6934 | 2305 | * |
AnnaBridge | 179:b0033dcd6934 | 2306 | * @return |
AnnaBridge | 179:b0033dcd6934 | 2307 | * Calibrated threshold value to use. First digit of return value is placed |
AnnaBridge | 179:b0033dcd6934 | 2308 | * in the "fine" register fields while the next digits are placed in the |
AnnaBridge | 179:b0033dcd6934 | 2309 | * "coarse" register fields. |
AnnaBridge | 179:b0033dcd6934 | 2310 | ******************************************************************************/ |
AnnaBridge | 179:b0033dcd6934 | 2311 | static uint32_t vmonCalibratedThreshold(EMU_VmonChannel_TypeDef channel, |
AnnaBridge | 179:b0033dcd6934 | 2312 | int threshold) |
<> | 144:ef7eb2e8f9f7 | 2313 | { |
AnnaBridge | 179:b0033dcd6934 | 2314 | uint32_t tLow; |
AnnaBridge | 179:b0033dcd6934 | 2315 | uint32_t tHigh; |
AnnaBridge | 179:b0033dcd6934 | 2316 | uint32_t calReg; |
AnnaBridge | 179:b0033dcd6934 | 2317 | |
AnnaBridge | 179:b0033dcd6934 | 2318 | /* Get calibration values for 1.86V and 2.98V */ |
AnnaBridge | 179:b0033dcd6934 | 2319 | switch (channel) { |
AnnaBridge | 179:b0033dcd6934 | 2320 | case emuVmonChannel_AVDD: |
AnnaBridge | 179:b0033dcd6934 | 2321 | calReg = DEVINFO->VMONCAL0; |
AnnaBridge | 179:b0033dcd6934 | 2322 | tLow = (10 * ((calReg & _DEVINFO_VMONCAL0_AVDD1V86THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2323 | >> _DEVINFO_VMONCAL0_AVDD1V86THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2324 | + ((calReg & _DEVINFO_VMONCAL0_AVDD1V86THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2325 | >> _DEVINFO_VMONCAL0_AVDD1V86THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2326 | tHigh = (10 * ((calReg & _DEVINFO_VMONCAL0_AVDD2V98THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2327 | >> _DEVINFO_VMONCAL0_AVDD2V98THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2328 | + ((calReg & _DEVINFO_VMONCAL0_AVDD2V98THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2329 | >> _DEVINFO_VMONCAL0_AVDD2V98THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2330 | break; |
AnnaBridge | 179:b0033dcd6934 | 2331 | case emuVmonChannel_ALTAVDD: |
AnnaBridge | 179:b0033dcd6934 | 2332 | calReg = DEVINFO->VMONCAL0; |
AnnaBridge | 179:b0033dcd6934 | 2333 | tLow = (10 * ((calReg & _DEVINFO_VMONCAL0_ALTAVDD1V86THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2334 | >> _DEVINFO_VMONCAL0_ALTAVDD1V86THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2335 | + ((calReg & _DEVINFO_VMONCAL0_ALTAVDD1V86THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2336 | >> _DEVINFO_VMONCAL0_ALTAVDD1V86THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2337 | tHigh = (10 * ((calReg & _DEVINFO_VMONCAL0_ALTAVDD2V98THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2338 | >> _DEVINFO_VMONCAL0_ALTAVDD2V98THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2339 | + ((calReg & _DEVINFO_VMONCAL0_ALTAVDD2V98THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2340 | >> _DEVINFO_VMONCAL0_ALTAVDD2V98THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2341 | break; |
AnnaBridge | 179:b0033dcd6934 | 2342 | case emuVmonChannel_DVDD: |
AnnaBridge | 179:b0033dcd6934 | 2343 | calReg = DEVINFO->VMONCAL1; |
AnnaBridge | 179:b0033dcd6934 | 2344 | tLow = (10 * ((calReg & _DEVINFO_VMONCAL1_DVDD1V86THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2345 | >> _DEVINFO_VMONCAL1_DVDD1V86THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2346 | + ((calReg & _DEVINFO_VMONCAL1_DVDD1V86THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2347 | >> _DEVINFO_VMONCAL1_DVDD1V86THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2348 | tHigh = (10 * ((calReg & _DEVINFO_VMONCAL1_DVDD2V98THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2349 | >> _DEVINFO_VMONCAL1_DVDD2V98THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2350 | + ((calReg & _DEVINFO_VMONCAL1_DVDD2V98THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2351 | >> _DEVINFO_VMONCAL1_DVDD2V98THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2352 | break; |
AnnaBridge | 179:b0033dcd6934 | 2353 | case emuVmonChannel_IOVDD0: |
AnnaBridge | 179:b0033dcd6934 | 2354 | calReg = DEVINFO->VMONCAL1; |
AnnaBridge | 179:b0033dcd6934 | 2355 | tLow = (10 * ((calReg & _DEVINFO_VMONCAL1_IO01V86THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2356 | >> _DEVINFO_VMONCAL1_IO01V86THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2357 | + ((calReg & _DEVINFO_VMONCAL1_IO01V86THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2358 | >> _DEVINFO_VMONCAL1_IO01V86THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2359 | tHigh = (10 * ((calReg & _DEVINFO_VMONCAL1_IO02V98THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2360 | >> _DEVINFO_VMONCAL1_IO02V98THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2361 | + ((calReg & _DEVINFO_VMONCAL1_IO02V98THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2362 | >> _DEVINFO_VMONCAL1_IO02V98THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2363 | break; |
AnnaBridge | 179:b0033dcd6934 | 2364 | #if defined(_EMU_VMONIO1CTRL_EN_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2365 | case emuVmonChannel_IOVDD1: |
AnnaBridge | 179:b0033dcd6934 | 2366 | calReg = DEVINFO->VMONCAL2; |
AnnaBridge | 179:b0033dcd6934 | 2367 | tLow = (10 * ((calReg & _DEVINFO_VMONCAL2_IO11V86THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2368 | >> _DEVINFO_VMONCAL2_IO11V86THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2369 | + ((calReg & _DEVINFO_VMONCAL2_IO11V86THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2370 | >> _DEVINFO_VMONCAL2_IO11V86THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2371 | tHigh = (10 * ((calReg & _DEVINFO_VMONCAL2_IO12V98THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2372 | >> _DEVINFO_VMONCAL2_IO12V98THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2373 | + ((calReg & _DEVINFO_VMONCAL2_IO12V98THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2374 | >> _DEVINFO_VMONCAL2_IO12V98THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2375 | break; |
AnnaBridge | 179:b0033dcd6934 | 2376 | #endif |
AnnaBridge | 179:b0033dcd6934 | 2377 | #if defined(_EMU_VMONBUVDDCTRL_EN_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2378 | case emuVmonChannel_BUVDD: |
AnnaBridge | 179:b0033dcd6934 | 2379 | calReg = DEVINFO->VMONCAL2; |
AnnaBridge | 179:b0033dcd6934 | 2380 | tLow = (10 * ((calReg & _DEVINFO_VMONCAL2_BUVDD1V86THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2381 | >> _DEVINFO_VMONCAL2_BUVDD1V86THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2382 | + ((calReg & _DEVINFO_VMONCAL2_BUVDD1V86THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2383 | >> _DEVINFO_VMONCAL2_BUVDD1V86THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2384 | tHigh = (10 * ((calReg & _DEVINFO_VMONCAL2_BUVDD2V98THRESCOARSE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2385 | >> _DEVINFO_VMONCAL2_BUVDD2V98THRESCOARSE_SHIFT)) |
AnnaBridge | 179:b0033dcd6934 | 2386 | + ((calReg & _DEVINFO_VMONCAL2_BUVDD2V98THRESFINE_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2387 | >> _DEVINFO_VMONCAL2_BUVDD2V98THRESFINE_SHIFT); |
AnnaBridge | 179:b0033dcd6934 | 2388 | break; |
AnnaBridge | 179:b0033dcd6934 | 2389 | #endif |
AnnaBridge | 179:b0033dcd6934 | 2390 | default: |
AnnaBridge | 179:b0033dcd6934 | 2391 | EFM_ASSERT(false); |
AnnaBridge | 179:b0033dcd6934 | 2392 | return threshold; |
AnnaBridge | 179:b0033dcd6934 | 2393 | } |
AnnaBridge | 179:b0033dcd6934 | 2394 | |
AnnaBridge | 179:b0033dcd6934 | 2395 | int32_t divisor = tHigh - tLow; |
AnnaBridge | 179:b0033dcd6934 | 2396 | if (divisor <= 0) { |
AnnaBridge | 179:b0033dcd6934 | 2397 | /* Uncalibrated device guard */ |
AnnaBridge | 179:b0033dcd6934 | 2398 | return threshold; |
AnnaBridge | 179:b0033dcd6934 | 2399 | } else { |
AnnaBridge | 179:b0033dcd6934 | 2400 | /* Calculate threshold. |
AnnaBridge | 179:b0033dcd6934 | 2401 | * |
AnnaBridge | 179:b0033dcd6934 | 2402 | * Note that volt is used in the reference manual, however we are interested |
AnnaBridge | 179:b0033dcd6934 | 2403 | * in millivolt results. We also increase the precision of Va and Vb in the |
AnnaBridge | 179:b0033dcd6934 | 2404 | * calculation instead of using floating points. |
AnnaBridge | 179:b0033dcd6934 | 2405 | */ |
AnnaBridge | 179:b0033dcd6934 | 2406 | uint32_t va = (1120 * 100) / (divisor); |
AnnaBridge | 179:b0033dcd6934 | 2407 | uint32_t vb = (1860 * 100) - (va * tLow); |
AnnaBridge | 179:b0033dcd6934 | 2408 | /* Round threshold to nearest integer value. */ |
AnnaBridge | 179:b0033dcd6934 | 2409 | return ((threshold * 100) - vb + (va / 2)) / va; |
AnnaBridge | 179:b0033dcd6934 | 2410 | } |
<> | 144:ef7eb2e8f9f7 | 2411 | } |
<> | 144:ef7eb2e8f9f7 | 2412 | |
<> | 144:ef7eb2e8f9f7 | 2413 | /** @endcond */ |
<> | 144:ef7eb2e8f9f7 | 2414 | |
<> | 144:ef7eb2e8f9f7 | 2415 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2416 | * @brief |
<> | 144:ef7eb2e8f9f7 | 2417 | * Initialize VMON channel. |
<> | 144:ef7eb2e8f9f7 | 2418 | * |
<> | 144:ef7eb2e8f9f7 | 2419 | * @details |
<> | 144:ef7eb2e8f9f7 | 2420 | * Initialize a VMON channel without hysteresis. If the channel supports |
<> | 144:ef7eb2e8f9f7 | 2421 | * separate rise and fall triggers, both thresholds will be set to the same |
AnnaBridge | 179:b0033dcd6934 | 2422 | * value. The threshold will be converted to a register field value based |
AnnaBridge | 179:b0033dcd6934 | 2423 | * on calibration values from the DI page. |
<> | 144:ef7eb2e8f9f7 | 2424 | * |
<> | 144:ef7eb2e8f9f7 | 2425 | * @param[in] vmonInit |
<> | 144:ef7eb2e8f9f7 | 2426 | * VMON initialization struct |
<> | 144:ef7eb2e8f9f7 | 2427 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 2428 | void EMU_VmonInit(const EMU_VmonInit_TypeDef *vmonInit) |
<> | 144:ef7eb2e8f9f7 | 2429 | { |
<> | 144:ef7eb2e8f9f7 | 2430 | uint32_t thresholdCoarse, thresholdFine; |
AnnaBridge | 179:b0033dcd6934 | 2431 | uint32_t threshold; |
AnnaBridge | 179:b0033dcd6934 | 2432 | |
AnnaBridge | 179:b0033dcd6934 | 2433 | EFM_ASSERT((vmonInit->threshold >= 1620) && (vmonInit->threshold <= 3400)); |
<> | 144:ef7eb2e8f9f7 | 2434 | |
AnnaBridge | 179:b0033dcd6934 | 2435 | threshold = vmonCalibratedThreshold(vmonInit->channel, vmonInit->threshold); |
AnnaBridge | 179:b0033dcd6934 | 2436 | thresholdFine = threshold % 10; |
AnnaBridge | 179:b0033dcd6934 | 2437 | thresholdCoarse = threshold / 10; |
AnnaBridge | 179:b0033dcd6934 | 2438 | |
AnnaBridge | 179:b0033dcd6934 | 2439 | /* Saturate threshold to max values. */ |
AnnaBridge | 179:b0033dcd6934 | 2440 | if (thresholdCoarse > 0xF) { |
AnnaBridge | 179:b0033dcd6934 | 2441 | thresholdCoarse = 0xF; |
AnnaBridge | 179:b0033dcd6934 | 2442 | thresholdFine = 9; |
AnnaBridge | 179:b0033dcd6934 | 2443 | } |
<> | 144:ef7eb2e8f9f7 | 2444 | |
AnnaBridge | 179:b0033dcd6934 | 2445 | switch (vmonInit->channel) { |
AnnaBridge | 179:b0033dcd6934 | 2446 | case emuVmonChannel_AVDD: |
AnnaBridge | 179:b0033dcd6934 | 2447 | EMU->VMONAVDDCTRL = (thresholdCoarse << _EMU_VMONAVDDCTRL_RISETHRESCOARSE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2448 | | (thresholdFine << _EMU_VMONAVDDCTRL_RISETHRESFINE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2449 | | (thresholdCoarse << _EMU_VMONAVDDCTRL_FALLTHRESCOARSE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2450 | | (thresholdFine << _EMU_VMONAVDDCTRL_FALLTHRESFINE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2451 | | (vmonInit->riseWakeup ? EMU_VMONAVDDCTRL_RISEWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2452 | | (vmonInit->fallWakeup ? EMU_VMONAVDDCTRL_FALLWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2453 | | (vmonInit->enable ? EMU_VMONAVDDCTRL_EN : 0); |
AnnaBridge | 179:b0033dcd6934 | 2454 | break; |
AnnaBridge | 179:b0033dcd6934 | 2455 | case emuVmonChannel_ALTAVDD: |
AnnaBridge | 179:b0033dcd6934 | 2456 | EMU->VMONALTAVDDCTRL = (thresholdCoarse << _EMU_VMONALTAVDDCTRL_THRESCOARSE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2457 | | (thresholdFine << _EMU_VMONALTAVDDCTRL_THRESFINE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2458 | | (vmonInit->riseWakeup ? EMU_VMONALTAVDDCTRL_RISEWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2459 | | (vmonInit->fallWakeup ? EMU_VMONALTAVDDCTRL_FALLWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2460 | | (vmonInit->enable ? EMU_VMONALTAVDDCTRL_EN : 0); |
AnnaBridge | 179:b0033dcd6934 | 2461 | break; |
AnnaBridge | 179:b0033dcd6934 | 2462 | case emuVmonChannel_DVDD: |
AnnaBridge | 179:b0033dcd6934 | 2463 | EMU->VMONDVDDCTRL = (thresholdCoarse << _EMU_VMONDVDDCTRL_THRESCOARSE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2464 | | (thresholdFine << _EMU_VMONDVDDCTRL_THRESFINE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2465 | | (vmonInit->riseWakeup ? EMU_VMONDVDDCTRL_RISEWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2466 | | (vmonInit->fallWakeup ? EMU_VMONDVDDCTRL_FALLWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2467 | | (vmonInit->enable ? EMU_VMONDVDDCTRL_EN : 0); |
AnnaBridge | 179:b0033dcd6934 | 2468 | break; |
AnnaBridge | 179:b0033dcd6934 | 2469 | case emuVmonChannel_IOVDD0: |
AnnaBridge | 179:b0033dcd6934 | 2470 | EMU->VMONIO0CTRL = (thresholdCoarse << _EMU_VMONIO0CTRL_THRESCOARSE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2471 | | (thresholdFine << _EMU_VMONIO0CTRL_THRESFINE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2472 | | (vmonInit->retDisable ? EMU_VMONIO0CTRL_RETDIS : 0) |
AnnaBridge | 179:b0033dcd6934 | 2473 | | (vmonInit->riseWakeup ? EMU_VMONIO0CTRL_RISEWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2474 | | (vmonInit->fallWakeup ? EMU_VMONIO0CTRL_FALLWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2475 | | (vmonInit->enable ? EMU_VMONIO0CTRL_EN : 0); |
AnnaBridge | 179:b0033dcd6934 | 2476 | break; |
AnnaBridge | 179:b0033dcd6934 | 2477 | #if defined(_EMU_VMONIO1CTRL_EN_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2478 | case emuVmonChannel_IOVDD1: |
AnnaBridge | 179:b0033dcd6934 | 2479 | EMU->VMONIO1CTRL = (thresholdCoarse << _EMU_VMONIO1CTRL_THRESCOARSE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2480 | | (thresholdFine << _EMU_VMONIO1CTRL_THRESFINE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2481 | | (vmonInit->retDisable ? EMU_VMONIO1CTRL_RETDIS : 0) |
AnnaBridge | 179:b0033dcd6934 | 2482 | | (vmonInit->riseWakeup ? EMU_VMONIO1CTRL_RISEWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2483 | | (vmonInit->fallWakeup ? EMU_VMONIO1CTRL_FALLWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2484 | | (vmonInit->enable ? EMU_VMONIO1CTRL_EN : 0); |
AnnaBridge | 179:b0033dcd6934 | 2485 | break; |
AnnaBridge | 179:b0033dcd6934 | 2486 | #endif |
AnnaBridge | 179:b0033dcd6934 | 2487 | #if defined(_EMU_VMONBUVDDCTRL_EN_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2488 | case emuVmonChannel_BUVDD: |
AnnaBridge | 179:b0033dcd6934 | 2489 | EMU->VMONBUVDDCTRL = (thresholdCoarse << _EMU_VMONBUVDDCTRL_THRESCOARSE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2490 | | (thresholdFine << _EMU_VMONBUVDDCTRL_THRESFINE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2491 | | (vmonInit->riseWakeup ? EMU_VMONBUVDDCTRL_RISEWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2492 | | (vmonInit->fallWakeup ? EMU_VMONBUVDDCTRL_FALLWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2493 | | (vmonInit->enable ? EMU_VMONBUVDDCTRL_EN : 0); |
AnnaBridge | 179:b0033dcd6934 | 2494 | break; |
AnnaBridge | 179:b0033dcd6934 | 2495 | #endif |
AnnaBridge | 179:b0033dcd6934 | 2496 | default: |
AnnaBridge | 179:b0033dcd6934 | 2497 | EFM_ASSERT(false); |
AnnaBridge | 179:b0033dcd6934 | 2498 | return; |
<> | 144:ef7eb2e8f9f7 | 2499 | } |
<> | 144:ef7eb2e8f9f7 | 2500 | } |
<> | 144:ef7eb2e8f9f7 | 2501 | |
<> | 144:ef7eb2e8f9f7 | 2502 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2503 | * @brief |
<> | 144:ef7eb2e8f9f7 | 2504 | * Initialize VMON channel with hysteresis (separate rise and fall triggers). |
<> | 144:ef7eb2e8f9f7 | 2505 | * |
<> | 144:ef7eb2e8f9f7 | 2506 | * @details |
<> | 144:ef7eb2e8f9f7 | 2507 | * Initialize a VMON channel which supports hysteresis. The AVDD channel is |
AnnaBridge | 179:b0033dcd6934 | 2508 | * the only channel to support separate rise and fall triggers. The rise and |
AnnaBridge | 179:b0033dcd6934 | 2509 | * fall thresholds will be converted to a register field value based on |
AnnaBridge | 179:b0033dcd6934 | 2510 | * calibration values from the DI page. |
<> | 144:ef7eb2e8f9f7 | 2511 | * |
<> | 144:ef7eb2e8f9f7 | 2512 | * @param[in] vmonInit |
<> | 144:ef7eb2e8f9f7 | 2513 | * VMON Hysteresis initialization struct |
<> | 144:ef7eb2e8f9f7 | 2514 | ******************************************************************************/ |
<> | 161:2cc1468da177 | 2515 | void EMU_VmonHystInit(const EMU_VmonHystInit_TypeDef *vmonInit) |
<> | 144:ef7eb2e8f9f7 | 2516 | { |
AnnaBridge | 179:b0033dcd6934 | 2517 | uint32_t riseThreshold; |
AnnaBridge | 179:b0033dcd6934 | 2518 | uint32_t fallThreshold; |
AnnaBridge | 179:b0033dcd6934 | 2519 | |
AnnaBridge | 179:b0033dcd6934 | 2520 | /* VMON supports voltages between 1620 mV and 3400 mV (inclusive) */ |
AnnaBridge | 179:b0033dcd6934 | 2521 | EFM_ASSERT((vmonInit->riseThreshold >= 1620) && (vmonInit->riseThreshold <= 3400)); |
AnnaBridge | 179:b0033dcd6934 | 2522 | EFM_ASSERT((vmonInit->fallThreshold >= 1620) && (vmonInit->fallThreshold <= 3400)); |
<> | 144:ef7eb2e8f9f7 | 2523 | /* Fall threshold has to be lower than rise threshold */ |
<> | 144:ef7eb2e8f9f7 | 2524 | EFM_ASSERT(vmonInit->fallThreshold <= vmonInit->riseThreshold); |
<> | 144:ef7eb2e8f9f7 | 2525 | |
AnnaBridge | 179:b0033dcd6934 | 2526 | riseThreshold = vmonCalibratedThreshold(vmonInit->channel, vmonInit->riseThreshold); |
AnnaBridge | 179:b0033dcd6934 | 2527 | fallThreshold = vmonCalibratedThreshold(vmonInit->channel, vmonInit->fallThreshold); |
<> | 144:ef7eb2e8f9f7 | 2528 | |
AnnaBridge | 179:b0033dcd6934 | 2529 | switch (vmonInit->channel) { |
AnnaBridge | 179:b0033dcd6934 | 2530 | case emuVmonChannel_AVDD: |
AnnaBridge | 179:b0033dcd6934 | 2531 | EMU->VMONAVDDCTRL = ((riseThreshold / 10) << _EMU_VMONAVDDCTRL_RISETHRESCOARSE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2532 | | ((riseThreshold % 10) << _EMU_VMONAVDDCTRL_RISETHRESFINE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2533 | | ((fallThreshold / 10) << _EMU_VMONAVDDCTRL_FALLTHRESCOARSE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2534 | | ((fallThreshold % 10) << _EMU_VMONAVDDCTRL_FALLTHRESFINE_SHIFT) |
AnnaBridge | 179:b0033dcd6934 | 2535 | | (vmonInit->riseWakeup ? EMU_VMONAVDDCTRL_RISEWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2536 | | (vmonInit->fallWakeup ? EMU_VMONAVDDCTRL_FALLWU : 0) |
AnnaBridge | 179:b0033dcd6934 | 2537 | | (vmonInit->enable ? EMU_VMONAVDDCTRL_EN : 0); |
AnnaBridge | 179:b0033dcd6934 | 2538 | break; |
AnnaBridge | 179:b0033dcd6934 | 2539 | default: |
AnnaBridge | 179:b0033dcd6934 | 2540 | EFM_ASSERT(false); |
AnnaBridge | 179:b0033dcd6934 | 2541 | return; |
<> | 144:ef7eb2e8f9f7 | 2542 | } |
<> | 144:ef7eb2e8f9f7 | 2543 | } |
<> | 144:ef7eb2e8f9f7 | 2544 | |
<> | 144:ef7eb2e8f9f7 | 2545 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2546 | * @brief |
<> | 144:ef7eb2e8f9f7 | 2547 | * Enable or disable a VMON channel |
<> | 144:ef7eb2e8f9f7 | 2548 | * |
<> | 144:ef7eb2e8f9f7 | 2549 | * @param[in] channel |
<> | 144:ef7eb2e8f9f7 | 2550 | * VMON channel to enable/disable |
<> | 144:ef7eb2e8f9f7 | 2551 | * |
<> | 144:ef7eb2e8f9f7 | 2552 | * @param[in] enable |
<> | 144:ef7eb2e8f9f7 | 2553 | * Whether to enable or disable |
<> | 144:ef7eb2e8f9f7 | 2554 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 2555 | void EMU_VmonEnable(EMU_VmonChannel_TypeDef channel, bool enable) |
<> | 144:ef7eb2e8f9f7 | 2556 | { |
<> | 144:ef7eb2e8f9f7 | 2557 | uint32_t volatile * reg; |
<> | 144:ef7eb2e8f9f7 | 2558 | uint32_t bit; |
<> | 144:ef7eb2e8f9f7 | 2559 | |
AnnaBridge | 179:b0033dcd6934 | 2560 | switch (channel) { |
AnnaBridge | 179:b0033dcd6934 | 2561 | case emuVmonChannel_AVDD: |
AnnaBridge | 179:b0033dcd6934 | 2562 | reg = &(EMU->VMONAVDDCTRL); |
AnnaBridge | 179:b0033dcd6934 | 2563 | bit = _EMU_VMONAVDDCTRL_EN_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2564 | break; |
AnnaBridge | 179:b0033dcd6934 | 2565 | case emuVmonChannel_ALTAVDD: |
AnnaBridge | 179:b0033dcd6934 | 2566 | reg = &(EMU->VMONALTAVDDCTRL); |
AnnaBridge | 179:b0033dcd6934 | 2567 | bit = _EMU_VMONALTAVDDCTRL_EN_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2568 | break; |
AnnaBridge | 179:b0033dcd6934 | 2569 | case emuVmonChannel_DVDD: |
AnnaBridge | 179:b0033dcd6934 | 2570 | reg = &(EMU->VMONDVDDCTRL); |
AnnaBridge | 179:b0033dcd6934 | 2571 | bit = _EMU_VMONDVDDCTRL_EN_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2572 | break; |
AnnaBridge | 179:b0033dcd6934 | 2573 | case emuVmonChannel_IOVDD0: |
AnnaBridge | 179:b0033dcd6934 | 2574 | reg = &(EMU->VMONIO0CTRL); |
AnnaBridge | 179:b0033dcd6934 | 2575 | bit = _EMU_VMONIO0CTRL_EN_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2576 | break; |
AnnaBridge | 179:b0033dcd6934 | 2577 | #if defined(_EMU_VMONIO1CTRL_EN_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2578 | case emuVmonChannel_IOVDD1: |
AnnaBridge | 179:b0033dcd6934 | 2579 | reg = &(EMU->VMONIO1CTRL); |
AnnaBridge | 179:b0033dcd6934 | 2580 | bit = _EMU_VMONIO1CTRL_EN_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2581 | break; |
AnnaBridge | 179:b0033dcd6934 | 2582 | #endif |
AnnaBridge | 179:b0033dcd6934 | 2583 | #if defined(_EMU_VMONBUVDDCTRL_EN_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2584 | case emuVmonChannel_BUVDD: |
AnnaBridge | 179:b0033dcd6934 | 2585 | reg = &(EMU->VMONBUVDDCTRL); |
AnnaBridge | 179:b0033dcd6934 | 2586 | bit = _EMU_VMONBUVDDCTRL_EN_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2587 | break; |
AnnaBridge | 179:b0033dcd6934 | 2588 | #endif |
AnnaBridge | 179:b0033dcd6934 | 2589 | default: |
AnnaBridge | 179:b0033dcd6934 | 2590 | EFM_ASSERT(false); |
AnnaBridge | 179:b0033dcd6934 | 2591 | return; |
<> | 144:ef7eb2e8f9f7 | 2592 | } |
<> | 144:ef7eb2e8f9f7 | 2593 | |
<> | 144:ef7eb2e8f9f7 | 2594 | BUS_RegBitWrite(reg, bit, enable); |
<> | 144:ef7eb2e8f9f7 | 2595 | } |
<> | 144:ef7eb2e8f9f7 | 2596 | |
<> | 144:ef7eb2e8f9f7 | 2597 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2598 | * @brief |
<> | 144:ef7eb2e8f9f7 | 2599 | * Get the status of a voltage monitor channel. |
<> | 144:ef7eb2e8f9f7 | 2600 | * |
<> | 144:ef7eb2e8f9f7 | 2601 | * @param[in] channel |
<> | 144:ef7eb2e8f9f7 | 2602 | * VMON channel to get status for |
<> | 144:ef7eb2e8f9f7 | 2603 | * |
<> | 144:ef7eb2e8f9f7 | 2604 | * @return |
<> | 144:ef7eb2e8f9f7 | 2605 | * Status of the selected VMON channel. True if channel is triggered. |
<> | 144:ef7eb2e8f9f7 | 2606 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 2607 | bool EMU_VmonChannelStatusGet(EMU_VmonChannel_TypeDef channel) |
<> | 144:ef7eb2e8f9f7 | 2608 | { |
<> | 144:ef7eb2e8f9f7 | 2609 | uint32_t bit; |
AnnaBridge | 179:b0033dcd6934 | 2610 | switch (channel) { |
AnnaBridge | 179:b0033dcd6934 | 2611 | case emuVmonChannel_AVDD: |
AnnaBridge | 179:b0033dcd6934 | 2612 | bit = _EMU_STATUS_VMONAVDD_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2613 | break; |
AnnaBridge | 179:b0033dcd6934 | 2614 | case emuVmonChannel_ALTAVDD: |
AnnaBridge | 179:b0033dcd6934 | 2615 | bit = _EMU_STATUS_VMONALTAVDD_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2616 | break; |
AnnaBridge | 179:b0033dcd6934 | 2617 | case emuVmonChannel_DVDD: |
AnnaBridge | 179:b0033dcd6934 | 2618 | bit = _EMU_STATUS_VMONDVDD_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2619 | break; |
AnnaBridge | 179:b0033dcd6934 | 2620 | case emuVmonChannel_IOVDD0: |
AnnaBridge | 179:b0033dcd6934 | 2621 | bit = _EMU_STATUS_VMONIO0_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2622 | break; |
AnnaBridge | 179:b0033dcd6934 | 2623 | #if defined(_EMU_VMONIO1CTRL_EN_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2624 | case emuVmonChannel_IOVDD1: |
AnnaBridge | 179:b0033dcd6934 | 2625 | bit = _EMU_STATUS_VMONIO1_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2626 | break; |
AnnaBridge | 179:b0033dcd6934 | 2627 | #endif |
AnnaBridge | 179:b0033dcd6934 | 2628 | #if defined(_EMU_VMONBUVDDCTRL_EN_MASK) |
AnnaBridge | 179:b0033dcd6934 | 2629 | case emuVmonChannel_BUVDD: |
AnnaBridge | 179:b0033dcd6934 | 2630 | bit = _EMU_STATUS_VMONBUVDD_SHIFT; |
AnnaBridge | 179:b0033dcd6934 | 2631 | break; |
AnnaBridge | 179:b0033dcd6934 | 2632 | #endif |
AnnaBridge | 179:b0033dcd6934 | 2633 | default: |
AnnaBridge | 179:b0033dcd6934 | 2634 | EFM_ASSERT(false); |
AnnaBridge | 179:b0033dcd6934 | 2635 | bit = 0; |
<> | 144:ef7eb2e8f9f7 | 2636 | } |
<> | 144:ef7eb2e8f9f7 | 2637 | |
<> | 144:ef7eb2e8f9f7 | 2638 | return BUS_RegBitRead(&EMU->STATUS, bit); |
<> | 144:ef7eb2e8f9f7 | 2639 | } |
<> | 144:ef7eb2e8f9f7 | 2640 | #endif /* EMU_STATUS_VMONRDY */ |
<> | 144:ef7eb2e8f9f7 | 2641 | |
AnnaBridge | 179:b0033dcd6934 | 2642 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) |
<> | 161:2cc1468da177 | 2643 | /***************************************************************************//** |
<> | 150:02e0a0aed4ec | 2644 | * @brief |
<> | 150:02e0a0aed4ec | 2645 | * Adjust the bias refresh rate |
<> | 150:02e0a0aed4ec | 2646 | * |
<> | 150:02e0a0aed4ec | 2647 | * @details |
<> | 150:02e0a0aed4ec | 2648 | * This function is only meant to be used under high-temperature operation on |
<> | 161:2cc1468da177 | 2649 | * EFR32xG1 and EFM32xG1 devices. Adjusting the bias mode will |
<> | 150:02e0a0aed4ec | 2650 | * increase the typical current consumption. See application note 1027 |
<> | 150:02e0a0aed4ec | 2651 | * and errata documents for further details. |
<> | 150:02e0a0aed4ec | 2652 | * |
<> | 150:02e0a0aed4ec | 2653 | * @param [in] mode |
<> | 150:02e0a0aed4ec | 2654 | * The new bias refresh rate |
<> | 161:2cc1468da177 | 2655 | ******************************************************************************/ |
<> | 150:02e0a0aed4ec | 2656 | void EMU_SetBiasMode(EMU_BiasMode_TypeDef mode) |
<> | 150:02e0a0aed4ec | 2657 | { |
<> | 150:02e0a0aed4ec | 2658 | #define EMU_TESTLOCK (*(volatile uint32_t *) (EMU_BASE + 0x190)) |
<> | 150:02e0a0aed4ec | 2659 | #define EMU_BIASCONF (*(volatile uint32_t *) (EMU_BASE + 0x164)) |
<> | 150:02e0a0aed4ec | 2660 | #define EMU_BIASTESTCTRL (*(volatile uint32_t *) (EMU_BASE + 0x19C)) |
<> | 150:02e0a0aed4ec | 2661 | #define CMU_ULFRCOCTRL (*(volatile uint32_t *) (CMU_BASE + 0x03C)) |
<> | 150:02e0a0aed4ec | 2662 | |
<> | 161:2cc1468da177 | 2663 | uint32_t freq = 0x2u; |
<> | 150:02e0a0aed4ec | 2664 | bool emuTestLocked = false; |
<> | 150:02e0a0aed4ec | 2665 | |
AnnaBridge | 179:b0033dcd6934 | 2666 | if (mode == emuBiasMode_1KHz) { |
<> | 161:2cc1468da177 | 2667 | freq = 0x0u; |
<> | 150:02e0a0aed4ec | 2668 | } |
<> | 150:02e0a0aed4ec | 2669 | |
AnnaBridge | 179:b0033dcd6934 | 2670 | if (EMU_TESTLOCK == 0x1u) { |
<> | 150:02e0a0aed4ec | 2671 | emuTestLocked = true; |
<> | 161:2cc1468da177 | 2672 | EMU_TESTLOCK = 0xADE8u; |
<> | 150:02e0a0aed4ec | 2673 | } |
<> | 150:02e0a0aed4ec | 2674 | |
AnnaBridge | 179:b0033dcd6934 | 2675 | if (mode == emuBiasMode_Continuous) { |
<> | 161:2cc1468da177 | 2676 | EMU_BIASCONF &= ~0x74u; |
AnnaBridge | 179:b0033dcd6934 | 2677 | } else { |
<> | 161:2cc1468da177 | 2678 | EMU_BIASCONF |= 0x74u; |
<> | 150:02e0a0aed4ec | 2679 | } |
<> | 150:02e0a0aed4ec | 2680 | |
<> | 161:2cc1468da177 | 2681 | EMU_BIASTESTCTRL |= 0x8u; |
<> | 161:2cc1468da177 | 2682 | CMU_ULFRCOCTRL = (CMU_ULFRCOCTRL & ~0xC00u) |
<> | 161:2cc1468da177 | 2683 | | ((freq & 0x3u) << 10u); |
<> | 161:2cc1468da177 | 2684 | EMU_BIASTESTCTRL &= ~0x8u; |
<> | 150:02e0a0aed4ec | 2685 | |
AnnaBridge | 179:b0033dcd6934 | 2686 | if (emuTestLocked) { |
<> | 161:2cc1468da177 | 2687 | EMU_TESTLOCK = 0u; |
<> | 150:02e0a0aed4ec | 2688 | } |
<> | 150:02e0a0aed4ec | 2689 | } |
<> | 150:02e0a0aed4ec | 2690 | #endif |
<> | 150:02e0a0aed4ec | 2691 | |
<> | 144:ef7eb2e8f9f7 | 2692 | /** @} (end addtogroup EMU) */ |
<> | 150:02e0a0aed4ec | 2693 | /** @} (end addtogroup emlib) */ |
<> | 144:ef7eb2e8f9f7 | 2694 | #endif /* __EM_EMU_H */ |