added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
Diff: targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_system.c
- Revision:
- 144:ef7eb2e8f9f7
- Parent:
- 50:a417edff4437
--- a/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_system.c Tue Aug 02 14:07:36 2016 +0000 +++ b/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_system.c Fri Sep 02 15:07:44 2016 +0100 @@ -1,121 +1,121 @@ -/***************************************************************************//** - * @file em_system.c - * @brief System Peripheral API - * @version 4.2.1 - ******************************************************************************* - * @section License - * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b> - ******************************************************************************* - * - * Permission is granted to anyone to use this software for any purpose, - * including commercial applications, and to alter it and redistribute it - * freely, subject to the following restrictions: - * - * 1. The origin of this software must not be misrepresented; you must not - * claim that you wrote the original software. - * 2. Altered source versions must be plainly marked as such, and must not be - * misrepresented as being the original software. - * 3. This notice may not be removed or altered from any source distribution. - * - * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no - * obligation to support this Software. Silicon Labs is providing the - * Software "AS IS", with no express or implied warranties of any kind, - * including, but not limited to, any implied warranties of merchantability - * or fitness for any particular purpose or warranties against infringement - * of any proprietary rights of a third party. - * - * Silicon Labs will not be liable for any consequential, incidental, or - * special damages, or any other relief, or for any claim by any third party, - * arising from your use of this Software. - * - ******************************************************************************/ - -#include "em_system.h" -#include "em_assert.h" - -/***************************************************************************//** - * @addtogroup EM_Library - * @{ - ******************************************************************************/ - -/***************************************************************************//** - * @addtogroup SYSTEM - * @brief System Peripheral API - * @{ - ******************************************************************************/ - -/******************************************************************************* - ************************** GLOBAL FUNCTIONS ******************************* - ******************************************************************************/ - -/***************************************************************************//** - * @brief - * Get chip major/minor revision. - * - * @param[out] rev - * Location to place chip revision info. - ******************************************************************************/ -void SYSTEM_ChipRevisionGet(SYSTEM_ChipRevision_TypeDef *rev) -{ - uint8_t tmp; - - EFM_ASSERT(rev); - - /* CHIP FAMILY bit [5:2] */ - tmp = (((ROMTABLE->PID1 & _ROMTABLE_PID1_FAMILYMSB_MASK) >> _ROMTABLE_PID1_FAMILYMSB_SHIFT) << 2); - /* CHIP FAMILY bit [1:0] */ - tmp |= ((ROMTABLE->PID0 & _ROMTABLE_PID0_FAMILYLSB_MASK) >> _ROMTABLE_PID0_FAMILYLSB_SHIFT); - rev->family = tmp; - - /* CHIP MAJOR bit [3:0] */ - rev->major = (ROMTABLE->PID0 & _ROMTABLE_PID0_REVMAJOR_MASK) >> _ROMTABLE_PID0_REVMAJOR_SHIFT; - - /* CHIP MINOR bit [7:4] */ - tmp = (((ROMTABLE->PID2 & _ROMTABLE_PID2_REVMINORMSB_MASK) >> _ROMTABLE_PID2_REVMINORMSB_SHIFT) << 4); - /* CHIP MINOR bit [3:0] */ - tmp |= ((ROMTABLE->PID3 & _ROMTABLE_PID3_REVMINORLSB_MASK) >> _ROMTABLE_PID3_REVMINORLSB_SHIFT); - rev->minor = tmp; -} - - -#if defined(CALIBRATE) -/***************************************************************************//** - * @brief - * Get factory calibration value for a given peripheral register. - * - * @param[in] regAddress - * Address of register to get a calibration value for. - * - * @return - * Calibration value for the requested register. - ******************************************************************************/ -uint32_t SYSTEM_GetCalibrationValue(volatile uint32_t *regAddress) -{ - int regCount; - CALIBRATE_TypeDef *p; - - regCount = 1; - p = CALIBRATE; - - for (;; ) - { - if ((regCount > CALIBRATE_MAX_REGISTERS) || - (p->VALUE == 0xFFFFFFFF)) - { - EFM_ASSERT(false); - return 0; /* End of device calibration table reached. */ - } - - if (p->ADDRESS == (uint32_t)regAddress) - { - return p->VALUE; /* Calibration value found ! */ - } - - p++; - regCount++; - } -} -#endif /* defined (CALIBRATE) */ - -/** @} (end addtogroup SYSTEM) */ -/** @} (end addtogroup EM_Library) */ +/***************************************************************************//** + * @file em_system.c + * @brief System Peripheral API + * @version 4.2.1 + ******************************************************************************* + * @section License + * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b> + ******************************************************************************* + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * 3. This notice may not be removed or altered from any source distribution. + * + * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no + * obligation to support this Software. Silicon Labs is providing the + * Software "AS IS", with no express or implied warranties of any kind, + * including, but not limited to, any implied warranties of merchantability + * or fitness for any particular purpose or warranties against infringement + * of any proprietary rights of a third party. + * + * Silicon Labs will not be liable for any consequential, incidental, or + * special damages, or any other relief, or for any claim by any third party, + * arising from your use of this Software. + * + ******************************************************************************/ + +#include "em_system.h" +#include "em_assert.h" + +/***************************************************************************//** + * @addtogroup EM_Library + * @{ + ******************************************************************************/ + +/***************************************************************************//** + * @addtogroup SYSTEM + * @brief System Peripheral API + * @{ + ******************************************************************************/ + +/******************************************************************************* + ************************** GLOBAL FUNCTIONS ******************************* + ******************************************************************************/ + +/***************************************************************************//** + * @brief + * Get chip major/minor revision. + * + * @param[out] rev + * Location to place chip revision info. + ******************************************************************************/ +void SYSTEM_ChipRevisionGet(SYSTEM_ChipRevision_TypeDef *rev) +{ + uint8_t tmp; + + EFM_ASSERT(rev); + + /* CHIP FAMILY bit [5:2] */ + tmp = (((ROMTABLE->PID1 & _ROMTABLE_PID1_FAMILYMSB_MASK) >> _ROMTABLE_PID1_FAMILYMSB_SHIFT) << 2); + /* CHIP FAMILY bit [1:0] */ + tmp |= ((ROMTABLE->PID0 & _ROMTABLE_PID0_FAMILYLSB_MASK) >> _ROMTABLE_PID0_FAMILYLSB_SHIFT); + rev->family = tmp; + + /* CHIP MAJOR bit [3:0] */ + rev->major = (ROMTABLE->PID0 & _ROMTABLE_PID0_REVMAJOR_MASK) >> _ROMTABLE_PID0_REVMAJOR_SHIFT; + + /* CHIP MINOR bit [7:4] */ + tmp = (((ROMTABLE->PID2 & _ROMTABLE_PID2_REVMINORMSB_MASK) >> _ROMTABLE_PID2_REVMINORMSB_SHIFT) << 4); + /* CHIP MINOR bit [3:0] */ + tmp |= ((ROMTABLE->PID3 & _ROMTABLE_PID3_REVMINORLSB_MASK) >> _ROMTABLE_PID3_REVMINORLSB_SHIFT); + rev->minor = tmp; +} + + +#if defined(CALIBRATE) +/***************************************************************************//** + * @brief + * Get factory calibration value for a given peripheral register. + * + * @param[in] regAddress + * Address of register to get a calibration value for. + * + * @return + * Calibration value for the requested register. + ******************************************************************************/ +uint32_t SYSTEM_GetCalibrationValue(volatile uint32_t *regAddress) +{ + int regCount; + CALIBRATE_TypeDef *p; + + regCount = 1; + p = CALIBRATE; + + for (;; ) + { + if ((regCount > CALIBRATE_MAX_REGISTERS) || + (p->VALUE == 0xFFFFFFFF)) + { + EFM_ASSERT(false); + return 0; /* End of device calibration table reached. */ + } + + if (p->ADDRESS == (uint32_t)regAddress) + { + return p->VALUE; /* Calibration value found ! */ + } + + p++; + regCount++; + } +} +#endif /* defined (CALIBRATE) */ + +/** @} (end addtogroup SYSTEM) */ +/** @} (end addtogroup EM_Library) */