Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_system.c@50:a417edff4437, 2016-01-15 (annotated)

Committer:
mbed_official
Date:
Fri Jan 15 07:45:16 2016 +0000
Revision:
50:a417edff4437
Parent:
0:9b334a45a8ff
Child:
144:ef7eb2e8f9f7
Synchronized with git revision 6010f32619bfcbb01cc73747d4ff9040863482d9



Full URL: https://github.com/mbedmicro/mbed/commit/6010f32619bfcbb01cc73747d4ff9040863482d9/



Remove doubling of buffer size in realiseEndpoint()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /***************************************************************************//**
bogdanm 0:9b334a45a8ff 2 * @file em_system.c
bogdanm 0:9b334a45a8ff 3 * @brief System Peripheral API
mbed_official 50:a417edff4437 4 * @version 4.2.1
bogdanm 0:9b334a45a8ff 5 *******************************************************************************
bogdanm 0:9b334a45a8ff 6 * @section License
mbed_official 50:a417edff4437 7 * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
bogdanm 0:9b334a45a8ff 8 *******************************************************************************
bogdanm 0:9b334a45a8ff 9 *
bogdanm 0:9b334a45a8ff 10 * Permission is granted to anyone to use this software for any purpose,
bogdanm 0:9b334a45a8ff 11 * including commercial applications, and to alter it and redistribute it
bogdanm 0:9b334a45a8ff 12 * freely, subject to the following restrictions:
bogdanm 0:9b334a45a8ff 13 *
bogdanm 0:9b334a45a8ff 14 * 1. The origin of this software must not be misrepresented; you must not
bogdanm 0:9b334a45a8ff 15 * claim that you wrote the original software.
bogdanm 0:9b334a45a8ff 16 * 2. Altered source versions must be plainly marked as such, and must not be
bogdanm 0:9b334a45a8ff 17 * misrepresented as being the original software.
bogdanm 0:9b334a45a8ff 18 * 3. This notice may not be removed or altered from any source distribution.
bogdanm 0:9b334a45a8ff 19 *
bogdanm 0:9b334a45a8ff 20 * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
bogdanm 0:9b334a45a8ff 21 * obligation to support this Software. Silicon Labs is providing the
bogdanm 0:9b334a45a8ff 22 * Software "AS IS", with no express or implied warranties of any kind,
bogdanm 0:9b334a45a8ff 23 * including, but not limited to, any implied warranties of merchantability
bogdanm 0:9b334a45a8ff 24 * or fitness for any particular purpose or warranties against infringement
bogdanm 0:9b334a45a8ff 25 * of any proprietary rights of a third party.
bogdanm 0:9b334a45a8ff 26 *
bogdanm 0:9b334a45a8ff 27 * Silicon Labs will not be liable for any consequential, incidental, or
bogdanm 0:9b334a45a8ff 28 * special damages, or any other relief, or for any claim by any third party,
bogdanm 0:9b334a45a8ff 29 * arising from your use of this Software.
bogdanm 0:9b334a45a8ff 30 *
bogdanm 0:9b334a45a8ff 31 ******************************************************************************/
bogdanm 0:9b334a45a8ff 32
bogdanm 0:9b334a45a8ff 33 #include "em_system.h"
bogdanm 0:9b334a45a8ff 34 #include "em_assert.h"
bogdanm 0:9b334a45a8ff 35
bogdanm 0:9b334a45a8ff 36 /***************************************************************************//**
bogdanm 0:9b334a45a8ff 37 * @addtogroup EM_Library
bogdanm 0:9b334a45a8ff 38 * @{
bogdanm 0:9b334a45a8ff 39 ******************************************************************************/
bogdanm 0:9b334a45a8ff 40
bogdanm 0:9b334a45a8ff 41 /***************************************************************************//**
bogdanm 0:9b334a45a8ff 42 * @addtogroup SYSTEM
bogdanm 0:9b334a45a8ff 43 * @brief System Peripheral API
bogdanm 0:9b334a45a8ff 44 * @{
bogdanm 0:9b334a45a8ff 45 ******************************************************************************/
bogdanm 0:9b334a45a8ff 46
bogdanm 0:9b334a45a8ff 47 /*******************************************************************************
bogdanm 0:9b334a45a8ff 48 ************************** GLOBAL FUNCTIONS *******************************
bogdanm 0:9b334a45a8ff 49 ******************************************************************************/
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 /***************************************************************************//**
bogdanm 0:9b334a45a8ff 52 * @brief
bogdanm 0:9b334a45a8ff 53 * Get chip major/minor revision.
bogdanm 0:9b334a45a8ff 54 *
bogdanm 0:9b334a45a8ff 55 * @param[out] rev
bogdanm 0:9b334a45a8ff 56 * Location to place chip revision info.
bogdanm 0:9b334a45a8ff 57 ******************************************************************************/
bogdanm 0:9b334a45a8ff 58 void SYSTEM_ChipRevisionGet(SYSTEM_ChipRevision_TypeDef *rev)
bogdanm 0:9b334a45a8ff 59 {
bogdanm 0:9b334a45a8ff 60 uint8_t tmp;
bogdanm 0:9b334a45a8ff 61
mbed_official 50:a417edff4437 62 EFM_ASSERT(rev);
mbed_official 50:a417edff4437 63
bogdanm 0:9b334a45a8ff 64 /* CHIP FAMILY bit [5:2] */
mbed_official 50:a417edff4437 65 tmp = (((ROMTABLE->PID1 & _ROMTABLE_PID1_FAMILYMSB_MASK) >> _ROMTABLE_PID1_FAMILYMSB_SHIFT) << 2);
bogdanm 0:9b334a45a8ff 66 /* CHIP FAMILY bit [1:0] */
mbed_official 50:a417edff4437 67 tmp |= ((ROMTABLE->PID0 & _ROMTABLE_PID0_FAMILYLSB_MASK) >> _ROMTABLE_PID0_FAMILYLSB_SHIFT);
bogdanm 0:9b334a45a8ff 68 rev->family = tmp;
bogdanm 0:9b334a45a8ff 69
bogdanm 0:9b334a45a8ff 70 /* CHIP MAJOR bit [3:0] */
mbed_official 50:a417edff4437 71 rev->major = (ROMTABLE->PID0 & _ROMTABLE_PID0_REVMAJOR_MASK) >> _ROMTABLE_PID0_REVMAJOR_SHIFT;
bogdanm 0:9b334a45a8ff 72
bogdanm 0:9b334a45a8ff 73 /* CHIP MINOR bit [7:4] */
mbed_official 50:a417edff4437 74 tmp = (((ROMTABLE->PID2 & _ROMTABLE_PID2_REVMINORMSB_MASK) >> _ROMTABLE_PID2_REVMINORMSB_SHIFT) << 4);
bogdanm 0:9b334a45a8ff 75 /* CHIP MINOR bit [3:0] */
mbed_official 50:a417edff4437 76 tmp |= ((ROMTABLE->PID3 & _ROMTABLE_PID3_REVMINORLSB_MASK) >> _ROMTABLE_PID3_REVMINORLSB_SHIFT);
bogdanm 0:9b334a45a8ff 77 rev->minor = tmp;
bogdanm 0:9b334a45a8ff 78 }
bogdanm 0:9b334a45a8ff 79
mbed_official 50:a417edff4437 80
mbed_official 50:a417edff4437 81 #if defined(CALIBRATE)
bogdanm 0:9b334a45a8ff 82 /***************************************************************************//**
bogdanm 0:9b334a45a8ff 83 * @brief
bogdanm 0:9b334a45a8ff 84 * Get factory calibration value for a given peripheral register.
bogdanm 0:9b334a45a8ff 85 *
bogdanm 0:9b334a45a8ff 86 * @param[in] regAddress
bogdanm 0:9b334a45a8ff 87 * Address of register to get a calibration value for.
bogdanm 0:9b334a45a8ff 88 *
bogdanm 0:9b334a45a8ff 89 * @return
bogdanm 0:9b334a45a8ff 90 * Calibration value for the requested register.
bogdanm 0:9b334a45a8ff 91 ******************************************************************************/
bogdanm 0:9b334a45a8ff 92 uint32_t SYSTEM_GetCalibrationValue(volatile uint32_t *regAddress)
bogdanm 0:9b334a45a8ff 93 {
bogdanm 0:9b334a45a8ff 94 int regCount;
bogdanm 0:9b334a45a8ff 95 CALIBRATE_TypeDef *p;
bogdanm 0:9b334a45a8ff 96
bogdanm 0:9b334a45a8ff 97 regCount = 1;
bogdanm 0:9b334a45a8ff 98 p = CALIBRATE;
bogdanm 0:9b334a45a8ff 99
bogdanm 0:9b334a45a8ff 100 for (;; )
bogdanm 0:9b334a45a8ff 101 {
bogdanm 0:9b334a45a8ff 102 if ((regCount > CALIBRATE_MAX_REGISTERS) ||
bogdanm 0:9b334a45a8ff 103 (p->VALUE == 0xFFFFFFFF))
bogdanm 0:9b334a45a8ff 104 {
bogdanm 0:9b334a45a8ff 105 EFM_ASSERT(false);
bogdanm 0:9b334a45a8ff 106 return 0; /* End of device calibration table reached. */
bogdanm 0:9b334a45a8ff 107 }
bogdanm 0:9b334a45a8ff 108
bogdanm 0:9b334a45a8ff 109 if (p->ADDRESS == (uint32_t)regAddress)
bogdanm 0:9b334a45a8ff 110 {
bogdanm 0:9b334a45a8ff 111 return p->VALUE; /* Calibration value found ! */
bogdanm 0:9b334a45a8ff 112 }
bogdanm 0:9b334a45a8ff 113
bogdanm 0:9b334a45a8ff 114 p++;
bogdanm 0:9b334a45a8ff 115 regCount++;
bogdanm 0:9b334a45a8ff 116 }
bogdanm 0:9b334a45a8ff 117 }
mbed_official 50:a417edff4437 118 #endif /* defined (CALIBRATE) */
bogdanm 0:9b334a45a8ff 119
bogdanm 0:9b334a45a8ff 120 /** @} (end addtogroup SYSTEM) */
bogdanm 0:9b334a45a8ff 121 /** @} (end addtogroup EM_Library) */