Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K66F/drivers/fsl_wdog.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)

Committer:
<>
Date:
Fri Sep 02 15:07:44 2016 +0100
Revision:
144:ef7eb2e8f9f7
This updates the lib to the mbed lib v125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /*
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
<> 144:ef7eb2e8f9f7 3 * All rights reserved.
<> 144:ef7eb2e8f9f7 4 *
<> 144:ef7eb2e8f9f7 5 * Redistribution and use in source and binary forms, with or without modification,
<> 144:ef7eb2e8f9f7 6 * are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * o Redistributions of source code must retain the above copyright notice, this list
<> 144:ef7eb2e8f9f7 9 * of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 10 *
<> 144:ef7eb2e8f9f7 11 * o Redistributions in binary form must reproduce the above copyright notice, this
<> 144:ef7eb2e8f9f7 12 * list of conditions and the following disclaimer in the documentation and/or
<> 144:ef7eb2e8f9f7 13 * other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 14 *
<> 144:ef7eb2e8f9f7 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
<> 144:ef7eb2e8f9f7 16 * contributors may be used to endorse or promote products derived from this
<> 144:ef7eb2e8f9f7 17 * software without specific prior written permission.
<> 144:ef7eb2e8f9f7 18 *
<> 144:ef7eb2e8f9f7 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
<> 144:ef7eb2e8f9f7 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
<> 144:ef7eb2e8f9f7 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
<> 144:ef7eb2e8f9f7 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
<> 144:ef7eb2e8f9f7 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
<> 144:ef7eb2e8f9f7 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
<> 144:ef7eb2e8f9f7 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
<> 144:ef7eb2e8f9f7 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
<> 144:ef7eb2e8f9f7 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 29 */
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 #include "fsl_wdog.h"
<> 144:ef7eb2e8f9f7 32
<> 144:ef7eb2e8f9f7 33 /*******************************************************************************
<> 144:ef7eb2e8f9f7 34 * Code
<> 144:ef7eb2e8f9f7 35 ******************************************************************************/
<> 144:ef7eb2e8f9f7 36
<> 144:ef7eb2e8f9f7 37 void WDOG_GetDefaultConfig(wdog_config_t *config)
<> 144:ef7eb2e8f9f7 38 {
<> 144:ef7eb2e8f9f7 39 assert(config);
<> 144:ef7eb2e8f9f7 40
<> 144:ef7eb2e8f9f7 41 config->enableWdog = true;
<> 144:ef7eb2e8f9f7 42 config->clockSource = kWDOG_LpoClockSource;
<> 144:ef7eb2e8f9f7 43 config->prescaler = kWDOG_ClockPrescalerDivide1;
<> 144:ef7eb2e8f9f7 44 #if defined(FSL_FEATURE_WDOG_HAS_WAITEN) && FSL_FEATURE_WDOG_HAS_WAITEN
<> 144:ef7eb2e8f9f7 45 config->workMode.enableWait = true;
<> 144:ef7eb2e8f9f7 46 #endif /* FSL_FEATURE_WDOG_HAS_WAITEN */
<> 144:ef7eb2e8f9f7 47 config->workMode.enableStop = false;
<> 144:ef7eb2e8f9f7 48 config->workMode.enableDebug = false;
<> 144:ef7eb2e8f9f7 49 config->enableUpdate = true;
<> 144:ef7eb2e8f9f7 50 config->enableInterrupt = false;
<> 144:ef7eb2e8f9f7 51 config->enableWindowMode = false;
<> 144:ef7eb2e8f9f7 52 config->windowValue = 0U;
<> 144:ef7eb2e8f9f7 53 config->timeoutValue = 0xFFFFU;
<> 144:ef7eb2e8f9f7 54 }
<> 144:ef7eb2e8f9f7 55
<> 144:ef7eb2e8f9f7 56 void WDOG_Init(WDOG_Type *base, const wdog_config_t *config)
<> 144:ef7eb2e8f9f7 57 {
<> 144:ef7eb2e8f9f7 58 assert(config);
<> 144:ef7eb2e8f9f7 59
<> 144:ef7eb2e8f9f7 60 uint32_t value = 0U;
<> 144:ef7eb2e8f9f7 61 uint32_t primaskValue = 0U;
<> 144:ef7eb2e8f9f7 62
<> 144:ef7eb2e8f9f7 63 value = WDOG_STCTRLH_WDOGEN(config->enableWdog) | WDOG_STCTRLH_CLKSRC(config->clockSource) |
<> 144:ef7eb2e8f9f7 64 WDOG_STCTRLH_IRQRSTEN(config->enableInterrupt) | WDOG_STCTRLH_WINEN(config->enableWindowMode) |
<> 144:ef7eb2e8f9f7 65 WDOG_STCTRLH_ALLOWUPDATE(config->enableUpdate) | WDOG_STCTRLH_DBGEN(config->workMode.enableDebug) |
<> 144:ef7eb2e8f9f7 66 WDOG_STCTRLH_STOPEN(config->workMode.enableStop) |
<> 144:ef7eb2e8f9f7 67 #if defined(FSL_FEATURE_WDOG_HAS_WAITEN) && FSL_FEATURE_WDOG_HAS_WAITEN
<> 144:ef7eb2e8f9f7 68 WDOG_STCTRLH_WAITEN(config->workMode.enableWait) |
<> 144:ef7eb2e8f9f7 69 #endif /* FSL_FEATURE_WDOG_HAS_WAITEN */
<> 144:ef7eb2e8f9f7 70 WDOG_STCTRLH_DISTESTWDOG(1U);
<> 144:ef7eb2e8f9f7 71
<> 144:ef7eb2e8f9f7 72 /* Disable the global interrupts. Otherwise, an interrupt could effectively invalidate the unlock sequence
<> 144:ef7eb2e8f9f7 73 * and the WCT may expire. After the configuration finishes, re-enable the global interrupts. */
<> 144:ef7eb2e8f9f7 74 primaskValue = DisableGlobalIRQ();
<> 144:ef7eb2e8f9f7 75 WDOG_Unlock(base);
<> 144:ef7eb2e8f9f7 76 /* Wait one bus clock cycle */
<> 144:ef7eb2e8f9f7 77 base->RSTCNT = 0U;
<> 144:ef7eb2e8f9f7 78 /* Set configruation */
<> 144:ef7eb2e8f9f7 79 base->PRESC = WDOG_PRESC_PRESCVAL(config->prescaler);
<> 144:ef7eb2e8f9f7 80 base->WINH = (uint16_t)((config->windowValue >> 16U) & 0xFFFFU);
<> 144:ef7eb2e8f9f7 81 base->WINL = (uint16_t)((config->windowValue) & 0xFFFFU);
<> 144:ef7eb2e8f9f7 82 base->TOVALH = (uint16_t)((config->timeoutValue >> 16U) & 0xFFFFU);
<> 144:ef7eb2e8f9f7 83 base->TOVALL = (uint16_t)((config->timeoutValue) & 0xFFFFU);
<> 144:ef7eb2e8f9f7 84 base->STCTRLH = value;
<> 144:ef7eb2e8f9f7 85 EnableGlobalIRQ(primaskValue);
<> 144:ef7eb2e8f9f7 86 }
<> 144:ef7eb2e8f9f7 87
<> 144:ef7eb2e8f9f7 88 void WDOG_Deinit(WDOG_Type *base)
<> 144:ef7eb2e8f9f7 89 {
<> 144:ef7eb2e8f9f7 90 uint32_t primaskValue = 0U;
<> 144:ef7eb2e8f9f7 91
<> 144:ef7eb2e8f9f7 92 /* Disable the global interrupts */
<> 144:ef7eb2e8f9f7 93 primaskValue = DisableGlobalIRQ();
<> 144:ef7eb2e8f9f7 94 WDOG_Unlock(base);
<> 144:ef7eb2e8f9f7 95 /* Wait one bus clock cycle */
<> 144:ef7eb2e8f9f7 96 base->RSTCNT = 0U;
<> 144:ef7eb2e8f9f7 97 WDOG_Disable(base);
<> 144:ef7eb2e8f9f7 98 EnableGlobalIRQ(primaskValue);
<> 144:ef7eb2e8f9f7 99 WDOG_ClearResetCount(base);
<> 144:ef7eb2e8f9f7 100 }
<> 144:ef7eb2e8f9f7 101
<> 144:ef7eb2e8f9f7 102 void WDOG_SetTestModeConfig(WDOG_Type *base, wdog_test_config_t *config)
<> 144:ef7eb2e8f9f7 103 {
<> 144:ef7eb2e8f9f7 104 assert(config);
<> 144:ef7eb2e8f9f7 105
<> 144:ef7eb2e8f9f7 106 uint32_t value = 0U;
<> 144:ef7eb2e8f9f7 107 uint32_t primaskValue = 0U;
<> 144:ef7eb2e8f9f7 108
<> 144:ef7eb2e8f9f7 109 value = WDOG_STCTRLH_DISTESTWDOG(0U) | WDOG_STCTRLH_TESTWDOG(1U) | WDOG_STCTRLH_TESTSEL(config->testMode) |
<> 144:ef7eb2e8f9f7 110 WDOG_STCTRLH_BYTESEL(config->testedByte) | WDOG_STCTRLH_IRQRSTEN(0U) | WDOG_STCTRLH_WDOGEN(1U) |
<> 144:ef7eb2e8f9f7 111 WDOG_STCTRLH_ALLOWUPDATE(1U);
<> 144:ef7eb2e8f9f7 112
<> 144:ef7eb2e8f9f7 113 /* Disable the global interrupts. Otherwise, an interrupt could effectively invalidate the unlock sequence
<> 144:ef7eb2e8f9f7 114 * and the WCT may expire. After the configuration finishes, re-enable the global interrupts. */
<> 144:ef7eb2e8f9f7 115 primaskValue = DisableGlobalIRQ();
<> 144:ef7eb2e8f9f7 116 WDOG_Unlock(base);
<> 144:ef7eb2e8f9f7 117 /* Wait one bus clock cycle */
<> 144:ef7eb2e8f9f7 118 base->RSTCNT = 0U;
<> 144:ef7eb2e8f9f7 119 /* Set configruation */
<> 144:ef7eb2e8f9f7 120 base->TOVALH = (uint16_t)((config->timeoutValue >> 16U) & 0xFFFFU);
<> 144:ef7eb2e8f9f7 121 base->TOVALL = (uint16_t)((config->timeoutValue) & 0xFFFFU);
<> 144:ef7eb2e8f9f7 122 base->STCTRLH = value;
<> 144:ef7eb2e8f9f7 123 EnableGlobalIRQ(primaskValue);
<> 144:ef7eb2e8f9f7 124 }
<> 144:ef7eb2e8f9f7 125
<> 144:ef7eb2e8f9f7 126 uint32_t WDOG_GetStatusFlags(WDOG_Type *base)
<> 144:ef7eb2e8f9f7 127 {
<> 144:ef7eb2e8f9f7 128 uint32_t status_flag = 0U;
<> 144:ef7eb2e8f9f7 129
<> 144:ef7eb2e8f9f7 130 status_flag |= (base->STCTRLH & WDOG_STCTRLH_WDOGEN_MASK);
<> 144:ef7eb2e8f9f7 131 status_flag |= (base->STCTRLL & WDOG_STCTRLL_INTFLG_MASK);
<> 144:ef7eb2e8f9f7 132
<> 144:ef7eb2e8f9f7 133 return status_flag;
<> 144:ef7eb2e8f9f7 134 }
<> 144:ef7eb2e8f9f7 135
<> 144:ef7eb2e8f9f7 136 void WDOG_ClearStatusFlags(WDOG_Type *base, uint32_t mask)
<> 144:ef7eb2e8f9f7 137 {
<> 144:ef7eb2e8f9f7 138 if (mask & kWDOG_TimeoutFlag)
<> 144:ef7eb2e8f9f7 139 {
<> 144:ef7eb2e8f9f7 140 base->STCTRLL |= WDOG_STCTRLL_INTFLG_MASK;
<> 144:ef7eb2e8f9f7 141 }
<> 144:ef7eb2e8f9f7 142 }
<> 144:ef7eb2e8f9f7 143
<> 144:ef7eb2e8f9f7 144 void WDOG_Refresh(WDOG_Type *base)
<> 144:ef7eb2e8f9f7 145 {
<> 144:ef7eb2e8f9f7 146 uint32_t primaskValue = 0U;
<> 144:ef7eb2e8f9f7 147
<> 144:ef7eb2e8f9f7 148 /* Disable the global interrupt to protect refresh sequence */
<> 144:ef7eb2e8f9f7 149 primaskValue = DisableGlobalIRQ();
<> 144:ef7eb2e8f9f7 150 base->REFRESH = WDOG_FIRST_WORD_OF_REFRESH;
<> 144:ef7eb2e8f9f7 151 base->REFRESH = WDOG_SECOND_WORD_OF_REFRESH;
<> 144:ef7eb2e8f9f7 152 EnableGlobalIRQ(primaskValue);
<> 144:ef7eb2e8f9f7 153 }