added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_system.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)
- Committer:
- <>
- Date:
- Fri Sep 02 15:07:44 2016 +0100
- Revision:
- 144:ef7eb2e8f9f7
- Parent:
- 50:a417edff4437
This updates the lib to the mbed lib v125
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 144:ef7eb2e8f9f7 | 1 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 2 | * @file em_system.c |
<> | 144:ef7eb2e8f9f7 | 3 | * @brief System Peripheral API |
<> | 144:ef7eb2e8f9f7 | 4 | * @version 4.2.1 |
<> | 144:ef7eb2e8f9f7 | 5 | ******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 6 | * @section License |
<> | 144:ef7eb2e8f9f7 | 7 | * <b>(C) Copyright 2015 Silicon Labs, 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 "em_system.h" |
<> | 144:ef7eb2e8f9f7 | 34 | #include "em_assert.h" |
<> | 144:ef7eb2e8f9f7 | 35 | |
<> | 144:ef7eb2e8f9f7 | 36 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 37 | * @addtogroup EM_Library |
<> | 144:ef7eb2e8f9f7 | 38 | * @{ |
<> | 144:ef7eb2e8f9f7 | 39 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 40 | |
<> | 144:ef7eb2e8f9f7 | 41 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 42 | * @addtogroup SYSTEM |
<> | 144:ef7eb2e8f9f7 | 43 | * @brief System Peripheral API |
<> | 144:ef7eb2e8f9f7 | 44 | * @{ |
<> | 144:ef7eb2e8f9f7 | 45 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 46 | |
<> | 144:ef7eb2e8f9f7 | 47 | /******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 48 | ************************** GLOBAL FUNCTIONS ******************************* |
<> | 144:ef7eb2e8f9f7 | 49 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 50 | |
<> | 144:ef7eb2e8f9f7 | 51 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 52 | * @brief |
<> | 144:ef7eb2e8f9f7 | 53 | * Get chip major/minor revision. |
<> | 144:ef7eb2e8f9f7 | 54 | * |
<> | 144:ef7eb2e8f9f7 | 55 | * @param[out] rev |
<> | 144:ef7eb2e8f9f7 | 56 | * Location to place chip revision info. |
<> | 144:ef7eb2e8f9f7 | 57 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 58 | void SYSTEM_ChipRevisionGet(SYSTEM_ChipRevision_TypeDef *rev) |
<> | 144:ef7eb2e8f9f7 | 59 | { |
<> | 144:ef7eb2e8f9f7 | 60 | uint8_t tmp; |
<> | 144:ef7eb2e8f9f7 | 61 | |
<> | 144:ef7eb2e8f9f7 | 62 | EFM_ASSERT(rev); |
<> | 144:ef7eb2e8f9f7 | 63 | |
<> | 144:ef7eb2e8f9f7 | 64 | /* CHIP FAMILY bit [5:2] */ |
<> | 144:ef7eb2e8f9f7 | 65 | tmp = (((ROMTABLE->PID1 & _ROMTABLE_PID1_FAMILYMSB_MASK) >> _ROMTABLE_PID1_FAMILYMSB_SHIFT) << 2); |
<> | 144:ef7eb2e8f9f7 | 66 | /* CHIP FAMILY bit [1:0] */ |
<> | 144:ef7eb2e8f9f7 | 67 | tmp |= ((ROMTABLE->PID0 & _ROMTABLE_PID0_FAMILYLSB_MASK) >> _ROMTABLE_PID0_FAMILYLSB_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 68 | rev->family = tmp; |
<> | 144:ef7eb2e8f9f7 | 69 | |
<> | 144:ef7eb2e8f9f7 | 70 | /* CHIP MAJOR bit [3:0] */ |
<> | 144:ef7eb2e8f9f7 | 71 | rev->major = (ROMTABLE->PID0 & _ROMTABLE_PID0_REVMAJOR_MASK) >> _ROMTABLE_PID0_REVMAJOR_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 72 | |
<> | 144:ef7eb2e8f9f7 | 73 | /* CHIP MINOR bit [7:4] */ |
<> | 144:ef7eb2e8f9f7 | 74 | tmp = (((ROMTABLE->PID2 & _ROMTABLE_PID2_REVMINORMSB_MASK) >> _ROMTABLE_PID2_REVMINORMSB_SHIFT) << 4); |
<> | 144:ef7eb2e8f9f7 | 75 | /* CHIP MINOR bit [3:0] */ |
<> | 144:ef7eb2e8f9f7 | 76 | tmp |= ((ROMTABLE->PID3 & _ROMTABLE_PID3_REVMINORLSB_MASK) >> _ROMTABLE_PID3_REVMINORLSB_SHIFT); |
<> | 144:ef7eb2e8f9f7 | 77 | rev->minor = tmp; |
<> | 144:ef7eb2e8f9f7 | 78 | } |
<> | 144:ef7eb2e8f9f7 | 79 | |
<> | 144:ef7eb2e8f9f7 | 80 | |
<> | 144:ef7eb2e8f9f7 | 81 | #if defined(CALIBRATE) |
<> | 144:ef7eb2e8f9f7 | 82 | /***************************************************************************//** |
<> | 144:ef7eb2e8f9f7 | 83 | * @brief |
<> | 144:ef7eb2e8f9f7 | 84 | * Get factory calibration value for a given peripheral register. |
<> | 144:ef7eb2e8f9f7 | 85 | * |
<> | 144:ef7eb2e8f9f7 | 86 | * @param[in] regAddress |
<> | 144:ef7eb2e8f9f7 | 87 | * Address of register to get a calibration value for. |
<> | 144:ef7eb2e8f9f7 | 88 | * |
<> | 144:ef7eb2e8f9f7 | 89 | * @return |
<> | 144:ef7eb2e8f9f7 | 90 | * Calibration value for the requested register. |
<> | 144:ef7eb2e8f9f7 | 91 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 92 | uint32_t SYSTEM_GetCalibrationValue(volatile uint32_t *regAddress) |
<> | 144:ef7eb2e8f9f7 | 93 | { |
<> | 144:ef7eb2e8f9f7 | 94 | int regCount; |
<> | 144:ef7eb2e8f9f7 | 95 | CALIBRATE_TypeDef *p; |
<> | 144:ef7eb2e8f9f7 | 96 | |
<> | 144:ef7eb2e8f9f7 | 97 | regCount = 1; |
<> | 144:ef7eb2e8f9f7 | 98 | p = CALIBRATE; |
<> | 144:ef7eb2e8f9f7 | 99 | |
<> | 144:ef7eb2e8f9f7 | 100 | for (;; ) |
<> | 144:ef7eb2e8f9f7 | 101 | { |
<> | 144:ef7eb2e8f9f7 | 102 | if ((regCount > CALIBRATE_MAX_REGISTERS) || |
<> | 144:ef7eb2e8f9f7 | 103 | (p->VALUE == 0xFFFFFFFF)) |
<> | 144:ef7eb2e8f9f7 | 104 | { |
<> | 144:ef7eb2e8f9f7 | 105 | EFM_ASSERT(false); |
<> | 144:ef7eb2e8f9f7 | 106 | return 0; /* End of device calibration table reached. */ |
<> | 144:ef7eb2e8f9f7 | 107 | } |
<> | 144:ef7eb2e8f9f7 | 108 | |
<> | 144:ef7eb2e8f9f7 | 109 | if (p->ADDRESS == (uint32_t)regAddress) |
<> | 144:ef7eb2e8f9f7 | 110 | { |
<> | 144:ef7eb2e8f9f7 | 111 | return p->VALUE; /* Calibration value found ! */ |
<> | 144:ef7eb2e8f9f7 | 112 | } |
<> | 144:ef7eb2e8f9f7 | 113 | |
<> | 144:ef7eb2e8f9f7 | 114 | p++; |
<> | 144:ef7eb2e8f9f7 | 115 | regCount++; |
<> | 144:ef7eb2e8f9f7 | 116 | } |
<> | 144:ef7eb2e8f9f7 | 117 | } |
<> | 144:ef7eb2e8f9f7 | 118 | #endif /* defined (CALIBRATE) */ |
<> | 144:ef7eb2e8f9f7 | 119 | |
<> | 144:ef7eb2e8f9f7 | 120 | /** @} (end addtogroup SYSTEM) */ |
<> | 144:ef7eb2e8f9f7 | 121 | /** @} (end addtogroup EM_Library) */ |