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TARGET_TB_SENSE_12/TOOLCHAIN_GCC_ARM/em_chip.h@172:65be27845400, 2019-02-20 (annotated)
- Committer:
- AnnaBridge
- Date:
- Wed Feb 20 20:53:29 2019 +0000
- Revision:
- 172:65be27845400
- Parent:
- 171:3a7713b1edbc
mbed library release version 165
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Anna Bridge |
142:4eea097334d6 | 1 | /***************************************************************************//** |
Anna Bridge |
142:4eea097334d6 | 2 | * @file em_chip.h |
Anna Bridge |
142:4eea097334d6 | 3 | * @brief Chip Initialization API |
Anna Bridge |
160:5571c4ff569f | 4 | * @version 5.3.3 |
Anna Bridge |
142:4eea097334d6 | 5 | ******************************************************************************* |
Anna Bridge |
160:5571c4ff569f | 6 | * # License |
Anna Bridge |
142:4eea097334d6 | 7 | * <b>Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com</b> |
Anna Bridge |
142:4eea097334d6 | 8 | ******************************************************************************* |
Anna Bridge |
142:4eea097334d6 | 9 | * |
Anna Bridge |
142:4eea097334d6 | 10 | * Permission is granted to anyone to use this software for any purpose, |
Anna Bridge |
142:4eea097334d6 | 11 | * including commercial applications, and to alter it and redistribute it |
Anna Bridge |
142:4eea097334d6 | 12 | * freely, subject to the following restrictions: |
Anna Bridge |
142:4eea097334d6 | 13 | * |
Anna Bridge |
142:4eea097334d6 | 14 | * 1. The origin of this software must not be misrepresented; you must not |
Anna Bridge |
142:4eea097334d6 | 15 | * claim that you wrote the original software. |
Anna Bridge |
142:4eea097334d6 | 16 | * 2. Altered source versions must be plainly marked as such, and must not be |
Anna Bridge |
142:4eea097334d6 | 17 | * misrepresented as being the original software. |
Anna Bridge |
142:4eea097334d6 | 18 | * 3. This notice may not be removed or altered from any source distribution. |
Anna Bridge |
142:4eea097334d6 | 19 | * |
Anna Bridge |
142:4eea097334d6 | 20 | * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no |
Anna Bridge |
142:4eea097334d6 | 21 | * obligation to support this Software. Silicon Labs is providing the |
Anna Bridge |
142:4eea097334d6 | 22 | * Software "AS IS", with no express or implied warranties of any kind, |
Anna Bridge |
142:4eea097334d6 | 23 | * including, but not limited to, any implied warranties of merchantability |
Anna Bridge |
142:4eea097334d6 | 24 | * or fitness for any particular purpose or warranties against infringement |
Anna Bridge |
142:4eea097334d6 | 25 | * of any proprietary rights of a third party. |
Anna Bridge |
142:4eea097334d6 | 26 | * |
Anna Bridge |
142:4eea097334d6 | 27 | * Silicon Labs will not be liable for any consequential, incidental, or |
Anna Bridge |
142:4eea097334d6 | 28 | * special damages, or any other relief, or for any claim by any third party, |
Anna Bridge |
142:4eea097334d6 | 29 | * arising from your use of this Software. |
Anna Bridge |
142:4eea097334d6 | 30 | * |
Anna Bridge |
142:4eea097334d6 | 31 | ******************************************************************************/ |
Anna Bridge |
142:4eea097334d6 | 32 | |
Anna Bridge |
142:4eea097334d6 | 33 | #ifndef EM_CHIP_H |
Anna Bridge |
142:4eea097334d6 | 34 | #define EM_CHIP_H |
Anna Bridge |
142:4eea097334d6 | 35 | |
Anna Bridge |
142:4eea097334d6 | 36 | #include "em_device.h" |
Anna Bridge |
142:4eea097334d6 | 37 | #include "em_system.h" |
Anna Bridge |
142:4eea097334d6 | 38 | #include "em_gpio.h" |
Anna Bridge |
142:4eea097334d6 | 39 | #include "em_bus.h" |
Anna Bridge |
142:4eea097334d6 | 40 | |
Anna Bridge |
142:4eea097334d6 | 41 | #ifdef __cplusplus |
Anna Bridge |
142:4eea097334d6 | 42 | extern "C" { |
Anna Bridge |
142:4eea097334d6 | 43 | #endif |
Anna Bridge |
142:4eea097334d6 | 44 | |
Anna Bridge |
142:4eea097334d6 | 45 | /***************************************************************************//** |
Anna Bridge |
142:4eea097334d6 | 46 | * @addtogroup emlib |
Anna Bridge |
142:4eea097334d6 | 47 | * @{ |
Anna Bridge |
142:4eea097334d6 | 48 | ******************************************************************************/ |
Anna Bridge |
142:4eea097334d6 | 49 | |
Anna Bridge |
142:4eea097334d6 | 50 | /***************************************************************************//** |
Anna Bridge |
142:4eea097334d6 | 51 | * @addtogroup CHIP |
Anna Bridge |
142:4eea097334d6 | 52 | * @brief Chip errata workarounds initialization API |
Anna Bridge |
142:4eea097334d6 | 53 | * @details |
Anna Bridge |
142:4eea097334d6 | 54 | * API to initialize chip for errata workarounds. |
Anna Bridge |
142:4eea097334d6 | 55 | * @{ |
Anna Bridge |
142:4eea097334d6 | 56 | ******************************************************************************/ |
Anna Bridge |
142:4eea097334d6 | 57 | |
Anna Bridge |
142:4eea097334d6 | 58 | /**************************************************************************//** |
Anna Bridge |
142:4eea097334d6 | 59 | * @brief |
Anna Bridge |
142:4eea097334d6 | 60 | * Chip initialization routine for revision errata workarounds. This function |
Anna Bridge |
142:4eea097334d6 | 61 | * must be called immediately in main(). |
Anna Bridge |
142:4eea097334d6 | 62 | * |
Anna Bridge |
142:4eea097334d6 | 63 | * @note |
Anna Bridge |
142:4eea097334d6 | 64 | * This function must be called immediately in main(). |
Anna Bridge |
142:4eea097334d6 | 65 | * |
Anna Bridge |
142:4eea097334d6 | 66 | * This init function will configure the device to a state where it is |
Anna Bridge |
142:4eea097334d6 | 67 | * as similar as later revisions as possible, to improve software compatibility |
Anna Bridge |
142:4eea097334d6 | 68 | * with newer parts. See the device specific errata for details. |
Anna Bridge |
142:4eea097334d6 | 69 | *****************************************************************************/ |
Anna Bridge |
142:4eea097334d6 | 70 | __STATIC_INLINE void CHIP_Init(void) |
Anna Bridge |
142:4eea097334d6 | 71 | { |
Anna Bridge |
142:4eea097334d6 | 72 | #if defined(_SILICON_LABS_32B_SERIES_0) && defined(_EFM32_GECKO_FAMILY) |
Anna Bridge |
142:4eea097334d6 | 73 | uint32_t rev; |
Anna Bridge |
142:4eea097334d6 | 74 | SYSTEM_ChipRevision_TypeDef chipRev; |
Anna Bridge |
142:4eea097334d6 | 75 | volatile uint32_t *reg; |
Anna Bridge |
142:4eea097334d6 | 76 | |
Anna Bridge |
142:4eea097334d6 | 77 | rev = *(volatile uint32_t *)(0x0FE081FC); |
Anna Bridge |
142:4eea097334d6 | 78 | /* Engineering Sample calibration setup */ |
Anna Bridge |
160:5571c4ff569f | 79 | if ((rev >> 24) == 0) { |
Anna Bridge |
142:4eea097334d6 | 80 | reg = (volatile uint32_t *)0x400CA00C; |
Anna Bridge |
142:4eea097334d6 | 81 | *reg &= ~(0x70UL); |
Anna Bridge |
142:4eea097334d6 | 82 | /* DREG */ |
Anna Bridge |
142:4eea097334d6 | 83 | reg = (volatile uint32_t *)0x400C6020; |
Anna Bridge |
142:4eea097334d6 | 84 | *reg &= ~(0xE0000000UL); |
Anna Bridge |
142:4eea097334d6 | 85 | *reg |= ~(7UL << 25); |
Anna Bridge |
142:4eea097334d6 | 86 | } |
Anna Bridge |
160:5571c4ff569f | 87 | if ((rev >> 24) <= 3) { |
Anna Bridge |
142:4eea097334d6 | 88 | /* DREG */ |
Anna Bridge |
142:4eea097334d6 | 89 | reg = (volatile uint32_t *)0x400C6020; |
Anna Bridge |
142:4eea097334d6 | 90 | *reg &= ~(0x00001F80UL); |
Anna Bridge |
142:4eea097334d6 | 91 | /* Update CMU reset values */ |
Anna Bridge |
142:4eea097334d6 | 92 | reg = (volatile uint32_t *)0x400C8040; |
Anna Bridge |
142:4eea097334d6 | 93 | *reg = 0; |
Anna Bridge |
142:4eea097334d6 | 94 | reg = (volatile uint32_t *)0x400C8044; |
Anna Bridge |
142:4eea097334d6 | 95 | *reg = 0; |
Anna Bridge |
142:4eea097334d6 | 96 | reg = (volatile uint32_t *)0x400C8058; |
Anna Bridge |
142:4eea097334d6 | 97 | *reg = 0; |
Anna Bridge |
142:4eea097334d6 | 98 | reg = (volatile uint32_t *)0x400C8060; |
Anna Bridge |
142:4eea097334d6 | 99 | *reg = 0; |
Anna Bridge |
142:4eea097334d6 | 100 | reg = (volatile uint32_t *)0x400C8078; |
Anna Bridge |
142:4eea097334d6 | 101 | *reg = 0; |
Anna Bridge |
142:4eea097334d6 | 102 | } |
Anna Bridge |
142:4eea097334d6 | 103 | |
Anna Bridge |
142:4eea097334d6 | 104 | SYSTEM_ChipRevisionGet(&chipRev); |
Anna Bridge |
160:5571c4ff569f | 105 | if (chipRev.major == 0x01) { |
Anna Bridge |
142:4eea097334d6 | 106 | /* Rev A errata handling for EM2/3. Must enable DMA clock in order for EM2/3 */ |
Anna Bridge |
142:4eea097334d6 | 107 | /* to work. This will be fixed in later chip revisions, so only do for rev A. */ |
Anna Bridge |
160:5571c4ff569f | 108 | if (chipRev.minor == 00) { |
Anna Bridge |
142:4eea097334d6 | 109 | reg = (volatile uint32_t *)0x400C8040; |
Anna Bridge |
142:4eea097334d6 | 110 | *reg |= 0x2; |
Anna Bridge |
142:4eea097334d6 | 111 | } |
Anna Bridge |
142:4eea097334d6 | 112 | |
Anna Bridge |
142:4eea097334d6 | 113 | /* Rev A+B errata handling for I2C when using EM2/3. USART0 clock must be enabled */ |
Anna Bridge |
142:4eea097334d6 | 114 | /* after waking up from EM2/EM3 in order for I2C to work. This will be fixed in */ |
Anna Bridge |
142:4eea097334d6 | 115 | /* later chip revisions, so only do for rev A+B. */ |
Anna Bridge |
160:5571c4ff569f | 116 | if (chipRev.minor <= 0x01) { |
Anna Bridge |
142:4eea097334d6 | 117 | reg = (volatile uint32_t *)0x400C8044; |
Anna Bridge |
142:4eea097334d6 | 118 | *reg |= 0x1; |
Anna Bridge |
142:4eea097334d6 | 119 | } |
Anna Bridge |
142:4eea097334d6 | 120 | } |
Anna Bridge |
142:4eea097334d6 | 121 | /* Ensure correct ADC/DAC calibration value */ |
Anna Bridge |
142:4eea097334d6 | 122 | rev = *(volatile uint32_t *)0x0FE081F0; |
Anna Bridge |
160:5571c4ff569f | 123 | if (rev < 0x4C8ABA00) { |
Anna Bridge |
142:4eea097334d6 | 124 | uint32_t cal; |
Anna Bridge |
142:4eea097334d6 | 125 | |
Anna Bridge |
142:4eea097334d6 | 126 | /* Enable ADC/DAC clocks */ |
Anna Bridge |
142:4eea097334d6 | 127 | reg = (volatile uint32_t *)0x400C8044UL; |
Anna Bridge |
142:4eea097334d6 | 128 | *reg |= (1 << 14 | 1 << 11); |
Anna Bridge |
142:4eea097334d6 | 129 | |
Anna Bridge |
142:4eea097334d6 | 130 | /* Retrive calibration values */ |
Anna Bridge |
160:5571c4ff569f | 131 | cal = ((*(volatile uint32_t *)(0x0FE081B4UL) & 0x00007F00UL) |
Anna Bridge |
160:5571c4ff569f | 132 | >> 8) << 24; |
Anna Bridge |
142:4eea097334d6 | 133 | |
Anna Bridge |
160:5571c4ff569f | 134 | cal |= ((*(volatile uint32_t *)(0x0FE081B4UL) & 0x0000007FUL) |
Anna Bridge |
160:5571c4ff569f | 135 | >> 0) << 16; |
Anna Bridge |
142:4eea097334d6 | 136 | |
Anna Bridge |
160:5571c4ff569f | 137 | cal |= ((*(volatile uint32_t *)(0x0FE081B4UL) & 0x00007F00UL) |
Anna Bridge |
160:5571c4ff569f | 138 | >> 8) << 8; |
Anna Bridge |
142:4eea097334d6 | 139 | |
Anna Bridge |
160:5571c4ff569f | 140 | cal |= ((*(volatile uint32_t *)(0x0FE081B4UL) & 0x0000007FUL) |
Anna Bridge |
160:5571c4ff569f | 141 | >> 0) << 0; |
Anna Bridge |
142:4eea097334d6 | 142 | |
Anna Bridge |
142:4eea097334d6 | 143 | /* ADC0->CAL = 1.25 reference */ |
Anna Bridge |
142:4eea097334d6 | 144 | reg = (volatile uint32_t *)0x40002034UL; |
Anna Bridge |
142:4eea097334d6 | 145 | *reg = cal; |
Anna Bridge |
142:4eea097334d6 | 146 | |
Anna Bridge |
142:4eea097334d6 | 147 | /* DAC0->CAL = 1.25 reference */ |
Anna Bridge |
142:4eea097334d6 | 148 | reg = (volatile uint32_t *)(0x4000402CUL); |
Anna Bridge |
142:4eea097334d6 | 149 | cal = *(volatile uint32_t *)0x0FE081C8UL; |
Anna Bridge |
142:4eea097334d6 | 150 | *reg = cal; |
Anna Bridge |
142:4eea097334d6 | 151 | |
Anna Bridge |
142:4eea097334d6 | 152 | /* Turn off ADC/DAC clocks */ |
Anna Bridge |
142:4eea097334d6 | 153 | reg = (volatile uint32_t *)0x400C8044UL; |
Anna Bridge |
142:4eea097334d6 | 154 | *reg &= ~(1 << 14 | 1 << 11); |
Anna Bridge |
142:4eea097334d6 | 155 | } |
Anna Bridge |
142:4eea097334d6 | 156 | #endif |
Anna Bridge |
142:4eea097334d6 | 157 | |
Anna Bridge |
142:4eea097334d6 | 158 | #if defined(_SILICON_LABS_32B_SERIES_0) && defined(_EFM32_GIANT_FAMILY) |
Anna Bridge |
142:4eea097334d6 | 159 | |
Anna Bridge |
142:4eea097334d6 | 160 | /****************************/ |
Anna Bridge |
142:4eea097334d6 | 161 | /* Fix for errata CMU_E113. */ |
Anna Bridge |
142:4eea097334d6 | 162 | |
Anna Bridge |
142:4eea097334d6 | 163 | uint8_t prodRev; |
Anna Bridge |
142:4eea097334d6 | 164 | SYSTEM_ChipRevision_TypeDef chipRev; |
Anna Bridge |
142:4eea097334d6 | 165 | |
Anna Bridge |
142:4eea097334d6 | 166 | prodRev = SYSTEM_GetProdRev(); |
Anna Bridge |
142:4eea097334d6 | 167 | SYSTEM_ChipRevisionGet(&chipRev); |
Anna Bridge |
142:4eea097334d6 | 168 | |
Anna Bridge |
160:5571c4ff569f | 169 | if ((prodRev >= 16) && (chipRev.minor >= 3)) { |
Anna Bridge |
142:4eea097334d6 | 170 | /* This fixes an issue with the LFXO on high temperatures. */ |
Anna Bridge |
142:4eea097334d6 | 171 | *(volatile uint32_t*)0x400C80C0 = |
Anna Bridge |
160:5571c4ff569f | 172 | (*(volatile uint32_t*)0x400C80C0 & ~(1 << 6) ) | (1 << 4); |
Anna Bridge |
142:4eea097334d6 | 173 | } |
Anna Bridge |
142:4eea097334d6 | 174 | #endif |
Anna Bridge |
142:4eea097334d6 | 175 | |
Anna Bridge |
142:4eea097334d6 | 176 | #if defined(_SILICON_LABS_32B_SERIES_0) && defined(_EFM32_HAPPY_FAMILY) |
Anna Bridge |
142:4eea097334d6 | 177 | |
Anna Bridge |
142:4eea097334d6 | 178 | uint8_t prodRev; |
Anna Bridge |
142:4eea097334d6 | 179 | prodRev = SYSTEM_GetProdRev(); |
Anna Bridge |
142:4eea097334d6 | 180 | |
Anna Bridge |
160:5571c4ff569f | 181 | if (prodRev <= 129) { |
Anna Bridge |
142:4eea097334d6 | 182 | /* This fixes a mistaken internal connection between PC0 and PC4 */ |
Anna Bridge |
142:4eea097334d6 | 183 | /* This disables an internal pulldown on PC4 */ |
Anna Bridge |
142:4eea097334d6 | 184 | *(volatile uint32_t*)(0x400C6018) = (1 << 26) | (5 << 0); |
Anna Bridge |
142:4eea097334d6 | 185 | /* This disables an internal LDO test signal driving PC4 */ |
Anna Bridge |
142:4eea097334d6 | 186 | *(volatile uint32_t*)(0x400C80E4) &= ~(1 << 24); |
Anna Bridge |
142:4eea097334d6 | 187 | } |
Anna Bridge |
142:4eea097334d6 | 188 | #endif |
Anna Bridge |
142:4eea097334d6 | 189 | |
Anna Bridge |
142:4eea097334d6 | 190 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_80) |
Anna Bridge |
142:4eea097334d6 | 191 | |
Anna Bridge |
142:4eea097334d6 | 192 | /**************************** |
Anna Bridge |
160:5571c4ff569f | 193 | * Fixes for errata GPIO_E201 (slewrate) and |
Anna Bridge |
160:5571c4ff569f | 194 | * HFXO high temperature oscillator startup robustness fix */ |
Anna Bridge |
142:4eea097334d6 | 195 | |
Anna Bridge |
142:4eea097334d6 | 196 | uint32_t port; |
Anna Bridge |
142:4eea097334d6 | 197 | uint32_t clkEn; |
Anna Bridge |
142:4eea097334d6 | 198 | uint8_t prodRev; |
Anna Bridge |
142:4eea097334d6 | 199 | const uint32_t setVal = (0x5 << _GPIO_P_CTRL_SLEWRATEALT_SHIFT) |
Anna Bridge |
160:5571c4ff569f | 200 | | (0x5 << _GPIO_P_CTRL_SLEWRATE_SHIFT); |
Anna Bridge |
142:4eea097334d6 | 201 | const uint32_t resetVal = _GPIO_P_CTRL_RESETVALUE |
Anna Bridge |
142:4eea097334d6 | 202 | & ~(_GPIO_P_CTRL_SLEWRATE_MASK |
Anna Bridge |
142:4eea097334d6 | 203 | | _GPIO_P_CTRL_SLEWRATEALT_MASK); |
Anna Bridge |
142:4eea097334d6 | 204 | |
Anna Bridge |
142:4eea097334d6 | 205 | prodRev = SYSTEM_GetProdRev(); |
Anna Bridge |
142:4eea097334d6 | 206 | SYSTEM_ChipRevision_TypeDef chipRev; |
Anna Bridge |
142:4eea097334d6 | 207 | SYSTEM_ChipRevisionGet(&chipRev); |
Anna Bridge |
142:4eea097334d6 | 208 | |
Anna Bridge |
142:4eea097334d6 | 209 | /* This errata is fixed in hardware from PRODREV 0x8F. */ |
Anna Bridge |
160:5571c4ff569f | 210 | if (prodRev < 0x8F) { |
Anna Bridge |
142:4eea097334d6 | 211 | /* Fixes for errata GPIO_E201 (slewrate) */ |
Anna Bridge |
142:4eea097334d6 | 212 | |
Anna Bridge |
142:4eea097334d6 | 213 | /* Save HFBUSCLK enable state and enable GPIO clock. */ |
Anna Bridge |
142:4eea097334d6 | 214 | clkEn = CMU->HFBUSCLKEN0; |
Anna Bridge |
142:4eea097334d6 | 215 | CMU->HFBUSCLKEN0 = clkEn | CMU_HFBUSCLKEN0_GPIO; |
Anna Bridge |
142:4eea097334d6 | 216 | |
Anna Bridge |
142:4eea097334d6 | 217 | /* Update slewrate */ |
Anna Bridge |
160:5571c4ff569f | 218 | for (port = 0; port <= GPIO_PORT_MAX; port++) { |
Anna Bridge |
142:4eea097334d6 | 219 | GPIO->P[port].CTRL = setVal | resetVal; |
Anna Bridge |
142:4eea097334d6 | 220 | } |
Anna Bridge |
142:4eea097334d6 | 221 | |
Anna Bridge |
142:4eea097334d6 | 222 | /* Restore HFBUSCLK enable state. */ |
Anna Bridge |
142:4eea097334d6 | 223 | CMU->HFBUSCLKEN0 = clkEn; |
Anna Bridge |
142:4eea097334d6 | 224 | } |
Anna Bridge |
142:4eea097334d6 | 225 | |
Anna Bridge |
142:4eea097334d6 | 226 | /* This errata is fixed in hardware from PRODREV 0x90. */ |
Anna Bridge |
160:5571c4ff569f | 227 | if (prodRev < 0x90) { |
Anna Bridge |
142:4eea097334d6 | 228 | /* HFXO high temperature oscillator startup robustness fix */ |
Anna Bridge |
142:4eea097334d6 | 229 | CMU->HFXOSTARTUPCTRL = |
Anna Bridge |
160:5571c4ff569f | 230 | (CMU->HFXOSTARTUPCTRL & ~_CMU_HFXOSTARTUPCTRL_IBTRIMXOCORE_MASK) |
Anna Bridge |
160:5571c4ff569f | 231 | | (0x20 << _CMU_HFXOSTARTUPCTRL_IBTRIMXOCORE_SHIFT); |
Anna Bridge |
142:4eea097334d6 | 232 | } |
Anna Bridge |
142:4eea097334d6 | 233 | |
Anna Bridge |
160:5571c4ff569f | 234 | if (chipRev.major == 0x01) { |
Anna Bridge |
142:4eea097334d6 | 235 | /* Fix for errata EMU_E210 - Potential Power-Down When Entering EM2 */ |
Anna Bridge |
142:4eea097334d6 | 236 | *(volatile uint32_t *)(EMU_BASE + 0x164) |= 0x4; |
Anna Bridge |
142:4eea097334d6 | 237 | } |
Anna Bridge |
160:5571c4ff569f | 238 | |
Anna Bridge |
160:5571c4ff569f | 239 | #if defined(_EFR_DEVICE) |
Anna Bridge |
160:5571c4ff569f | 240 | /**************************** |
Anna Bridge |
160:5571c4ff569f | 241 | * Fix for errata DCDC_E206 |
Anna Bridge |
160:5571c4ff569f | 242 | * Disable bypass limit enabled temporarily in SystemInit() errata |
Anna Bridge |
160:5571c4ff569f | 243 | * workaround. */ |
Anna Bridge |
160:5571c4ff569f | 244 | BUS_RegBitWrite(&EMU->DCDCCLIMCTRL, _EMU_DCDCCLIMCTRL_BYPLIMEN_SHIFT, 0); |
Anna Bridge |
160:5571c4ff569f | 245 | #endif |
Anna Bridge |
142:4eea097334d6 | 246 | #endif |
Anna Bridge |
142:4eea097334d6 | 247 | |
Anna Bridge |
142:4eea097334d6 | 248 | #if defined(_SILICON_LABS_GECKO_INTERNAL_SDID_84) |
Anna Bridge |
142:4eea097334d6 | 249 | |
Anna Bridge |
142:4eea097334d6 | 250 | uint8_t prodRev = SYSTEM_GetProdRev(); |
Anna Bridge |
142:4eea097334d6 | 251 | |
Anna Bridge |
142:4eea097334d6 | 252 | /* EM2 current fixes for early samples */ |
Anna Bridge |
160:5571c4ff569f | 253 | if (prodRev == 0) { |
Anna Bridge |
142:4eea097334d6 | 254 | *(volatile uint32_t *)(EMU_BASE + 0x190) = 0x0000ADE8UL; |
Anna Bridge |
142:4eea097334d6 | 255 | *(volatile uint32_t *)(EMU_BASE + 0x198) |= (0x1 << 2); |
Anna Bridge |
142:4eea097334d6 | 256 | *(volatile uint32_t *)(EMU_BASE + 0x190) = 0x0; |
Anna Bridge |
142:4eea097334d6 | 257 | } |
Anna Bridge |
160:5571c4ff569f | 258 | if (prodRev < 2) { |
Anna Bridge |
142:4eea097334d6 | 259 | *(volatile uint32_t *)(EMU_BASE + 0x164) |= (0x1 << 13); |
Anna Bridge |
142:4eea097334d6 | 260 | } |
Anna Bridge |
142:4eea097334d6 | 261 | |
Anna Bridge |
142:4eea097334d6 | 262 | /* Set optimal LFRCOCTRL VREFUPDATE and enable duty cycling of vref */ |
Anna Bridge |
142:4eea097334d6 | 263 | CMU->LFRCOCTRL = (CMU->LFRCOCTRL & ~_CMU_LFRCOCTRL_VREFUPDATE_MASK) |
Anna Bridge |
160:5571c4ff569f | 264 | | CMU_LFRCOCTRL_VREFUPDATE_64CYCLES |
Anna Bridge |
160:5571c4ff569f | 265 | | CMU_LFRCOCTRL_ENVREF; |
Anna Bridge |
142:4eea097334d6 | 266 | #endif |
Anna Bridge |
142:4eea097334d6 | 267 | |
Anna Bridge |
142:4eea097334d6 | 268 | #if defined(_EFR_DEVICE) && (_SILICON_LABS_GECKO_INTERNAL_SDID >= 84) |
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142:4eea097334d6 | 269 | MSC->CTRL |= 0x1 << 8; |
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142:4eea097334d6 | 270 | #endif |
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142:4eea097334d6 | 271 | |
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160:5571c4ff569f | 272 | /* Set validated PLFRCO trims for production revision < 5. Overwriting registers |
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160:5571c4ff569f | 273 | for all production revisions is safe. */ |
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160:5571c4ff569f | 274 | #if defined(_SILICON_LABS_32B_SERIES_1) && defined(_CMU_STATUS_PLFRCOENS_MASK) |
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160:5571c4ff569f | 275 | *(volatile uint32_t *)(CMU_BASE + 0x28C) = 0x258; |
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160:5571c4ff569f | 276 | *(volatile uint32_t *)(CMU_BASE + 0x290) = 0x55D4A; |
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160:5571c4ff569f | 277 | *(volatile uint32_t *)(CMU_BASE + 0x2FC) = 0x16E228; |
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160:5571c4ff569f | 278 | *(volatile uint32_t *)(CMU_BASE + 0x294) = 0x1E0; |
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160:5571c4ff569f | 279 | #endif |
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142:4eea097334d6 | 280 | } |
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142:4eea097334d6 | 281 | |
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142:4eea097334d6 | 282 | /** @} (end addtogroup CHIP) */ |
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142:4eea097334d6 | 283 | /** @} (end addtogroup emlib) */ |
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142:4eea097334d6 | 284 | |
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142:4eea097334d6 | 285 | #ifdef __cplusplus |
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142:4eea097334d6 | 286 | } |
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142:4eea097334d6 | 287 | #endif |
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142:4eea097334d6 | 288 | |
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142:4eea097334d6 | 289 | #endif /* EM_CHIP_H */ |