CaryCoders / KL25Z_RTC

initial commit of kl25z rtc code. local changes for debug

Dependents:   demo_FRDM_RTC

Fork of KL25Z_RTC by clemente di caprio

KL25Z_RTC.cpp@5:5f49823ac1a3, 2015-06-26 (annotated)

Committer:
ftagius
Date:
Fri Jun 26 17:35:24 2015 +0000
Revision:
5:5f49823ac1a3
Parent:
4:3bd0dc0c2b2e 
initial local copy of kl25z real time clock init code;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
clemente 0:12422f7c30d3 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
clemente 0:12422f7c30d3 2 *
clemente 0:12422f7c30d3 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
clemente 0:12422f7c30d3 4 * and associated documentation files (the "Software"), to deal in the Software without
clemente 0:12422f7c30d3 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
clemente 0:12422f7c30d3 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
clemente 0:12422f7c30d3 7 * Software is furnished to do so, subject to the following conditions:
clemente 0:12422f7c30d3 8 *
clemente 0:12422f7c30d3 9 * The above copyright notice and this permission notice shall be included in all copies or
clemente 0:12422f7c30d3 10 * substantial portions of the Software.
clemente 0:12422f7c30d3 11 *
clemente 0:12422f7c30d3 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
clemente 0:12422f7c30d3 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
clemente 0:12422f7c30d3 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
clemente 0:12422f7c30d3 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
clemente 0:12422f7c30d3 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
clemente 0:12422f7c30d3 17 */
clemente 0:12422f7c30d3 18
clemente 0:12422f7c30d3 19 #include "KL25Z_RTC.h"
clemente 0:12422f7c30d3 20 #include "rtc_api.h"
clemente 0:12422f7c30d3 21
clemente 4:3bd0dc0c2b2e 22 unsigned int _alarm=0; // Value at which tha alarm is set.
clemente 4:3bd0dc0c2b2e 23 volatile unsigned int _secIRQ_Done;
clemente 4:3bd0dc0c2b2e 24 volatile unsigned int _alrmIRQ_Done;
clemente 0:12422f7c30d3 25
clemente 4:3bd0dc0c2b2e 26 void (*RTC_usr2_fptr)(void); // Pointers to user function called after
clemente 4:3bd0dc0c2b2e 27 void (*RTC_usr1_fptr)(void); // IRQ assertion.
clemente 1:2e81444e49a9 28
clemente 1:2e81444e49a9 29
clemente 0:12422f7c30d3 30 KL25Z_RTC::KL25Z_RTC( unsigned int alarm)
clemente 0:12422f7c30d3 31 {
clemente 4:3bd0dc0c2b2e 32 if ( alarm != 0)
clemente 4:3bd0dc0c2b2e 33 _alarm = alarm;
clemente 4:3bd0dc0c2b2e 34 }
clemente 4:3bd0dc0c2b2e 35
clemente 4:3bd0dc0c2b2e 36 KL25Z_RTC::~KL25Z_RTC()
clemente 4:3bd0dc0c2b2e 37 {
clemente 4:3bd0dc0c2b2e 38 NVIC_DisableIRQ( RTC_Seconds_IRQn);
clemente 4:3bd0dc0c2b2e 39 RTC_usr1_fptr = NULL;
clemente 4:3bd0dc0c2b2e 40 RTC->IER &= ~RTC_IER_TSIE_MASK;
clemente 4:3bd0dc0c2b2e 41
clemente 4:3bd0dc0c2b2e 42 NVIC_DisableIRQ( RTC_IRQn);
clemente 4:3bd0dc0c2b2e 43 RTC_usr2_fptr = NULL;
clemente 4:3bd0dc0c2b2e 44 RTC->IER &= ~RTC_IER_TAIE_MASK;
clemente 4:3bd0dc0c2b2e 45
clemente 4:3bd0dc0c2b2e 46 // Disable the clock to the RTC module.
clemente 4:3bd0dc0c2b2e 47 SIM->SCGC6 &= ~SIM_SCGC6_RTC_MASK;
clemente 0:12422f7c30d3 48 }
clemente 0:12422f7c30d3 49
clemente 0:12422f7c30d3 50 unsigned int KL25Z_RTC::RTC_GetAlarm( void)
clemente 0:12422f7c30d3 51 {
clemente 0:12422f7c30d3 52 return _alarm;
clemente 0:12422f7c30d3 53 }
clemente 0:12422f7c30d3 54
clemente 2:56a50064749e 55 void KL25Z_RTC::RTC_SetAlarm( unsigned int alarm)
clemente 2:56a50064749e 56 {
clemente 2:56a50064749e 57 _alarm = alarm;
clemente 2:56a50064749e 58 }
clemente 2:56a50064749e 59
clemente 0:12422f7c30d3 60 void KL25Z_RTC::RTC_Start( void)
clemente 0:12422f7c30d3 61 {
clemente 0:12422f7c30d3 62 rtc_init();
ftagius 5:5f49823ac1a3 63
clemente 0:12422f7c30d3 64 NVIC_EnableIRQ( RTC_Seconds_IRQn);
ftagius 5:5f49823ac1a3 65 //NVIC_EnableIRQ( RTC_IRQn); // causes startup problems?
clemente 0:12422f7c30d3 66 NVIC_SetVector( RTC_Seconds_IRQn, (uint32_t)&_RTC_Seconds_IRQHandler);
ftagius 5:5f49823ac1a3 67 //NVIC_SetVector( RTC_IRQn, (uint32_t)&_RTC_IRQHandler); // causes startup problems?
ftagius 5:5f49823ac1a3 68
clemente 0:12422f7c30d3 69 RTC->TAR = RTC->TSR + _alarm;
clemente 0:12422f7c30d3 70 RTC->IER = RTC_IER_TSIE_MASK | RTC_IER_TAIE_MASK;
clemente 0:12422f7c30d3 71
clemente 0:12422f7c30d3 72 }
clemente 0:12422f7c30d3 73
clemente 1:2e81444e49a9 74 void KL25Z_RTC::RTC_Start( void(*sec_ptr)(void), void(*alrm_ptr)(void))
clemente 1:2e81444e49a9 75 {
clemente 1:2e81444e49a9 76 rtc_init();
clemente 1:2e81444e49a9 77
clemente 1:2e81444e49a9 78 RTC->IER = 0;
clemente 1:2e81444e49a9 79
clemente 1:2e81444e49a9 80 if ( sec_ptr != NULL) {
clemente 1:2e81444e49a9 81 NVIC_EnableIRQ( RTC_Seconds_IRQn);
clemente 1:2e81444e49a9 82 NVIC_SetVector( RTC_Seconds_IRQn, (uint32_t)&_RTC_Seconds_IRQHandler);
clemente 4:3bd0dc0c2b2e 83 RTC_usr1_fptr = sec_ptr;
clemente 1:2e81444e49a9 84 RTC->IER |= RTC_IER_TSIE_MASK;
clemente 4:3bd0dc0c2b2e 85 } else {
clemente 4:3bd0dc0c2b2e 86 NVIC_DisableIRQ( RTC_Seconds_IRQn);
clemente 4:3bd0dc0c2b2e 87 RTC->IER &= ~RTC_IER_TSIE_MASK;
clemente 1:2e81444e49a9 88 }
clemente 1:2e81444e49a9 89
clemente 1:2e81444e49a9 90 if ( alrm_ptr != NULL) {
clemente 1:2e81444e49a9 91 RTC->TAR = RTC->TSR + _alarm;
clemente 1:2e81444e49a9 92 NVIC_EnableIRQ( RTC_IRQn);
clemente 1:2e81444e49a9 93 NVIC_SetVector( RTC_IRQn, (uint32_t)&_RTC_IRQHandler);
clemente 4:3bd0dc0c2b2e 94 RTC_usr2_fptr = alrm_ptr;
clemente 1:2e81444e49a9 95 RTC->IER |= RTC_IER_TAIE_MASK;
clemente 4:3bd0dc0c2b2e 96 } else {
clemente 4:3bd0dc0c2b2e 97 NVIC_DisableIRQ( RTC_IRQn);
clemente 4:3bd0dc0c2b2e 98 RTC->IER &= ~RTC_IER_TAIE_MASK;
clemente 1:2e81444e49a9 99 }
clemente 1:2e81444e49a9 100
clemente 1:2e81444e49a9 101 }
clemente 1:2e81444e49a9 102
clemente 0:12422f7c30d3 103 unsigned int KL25Z_RTC::RTC_Read( void)
clemente 0:12422f7c30d3 104 {
clemente 0:12422f7c30d3 105 return RTC->TSR;
clemente 0:12422f7c30d3 106 }
clemente 0:12422f7c30d3 107
clemente 4:3bd0dc0c2b2e 108 void KL25Z_RTC::_RTC_IRQHandler(void)
clemente 4:3bd0dc0c2b2e 109 {
clemente 4:3bd0dc0c2b2e 110 //
clemente 0:12422f7c30d3 111 if ( RTC->SR & 0x04) {
clemente 3:2cee0b9ac1ff 112 // printf("RTC_Alarm\r\n");
clemente 0:12422f7c30d3 113 RTC->TAR = RTC->TSR + _alarm;
clemente 4:3bd0dc0c2b2e 114 // Run the user supplied function
clemente 4:3bd0dc0c2b2e 115 if ( RTC_usr2_fptr != NULL)
clemente 4:3bd0dc0c2b2e 116 RTC_usr2_fptr();
clemente 4:3bd0dc0c2b2e 117 //
clemente 4:3bd0dc0c2b2e 118 _alrmIRQ_Done=1;
clemente 0:12422f7c30d3 119 }
clemente 1:2e81444e49a9 120
clemente 0:12422f7c30d3 121 }
clemente 0:12422f7c30d3 122
clemente 4:3bd0dc0c2b2e 123 void KL25Z_RTC::_RTC_Seconds_IRQHandler(void)
clemente 4:3bd0dc0c2b2e 124 {
clemente 0:12422f7c30d3 125 //
clemente 4:3bd0dc0c2b2e 126 _secIRQ_Done=1;
clemente 4:3bd0dc0c2b2e 127
clemente 3:2cee0b9ac1ff 128 // printf("RTC_Seconds_IRQHandler [%0d].\r\n", RTC->TSR);
clemente 1:2e81444e49a9 129 // Run the user supplied function
clemente 4:3bd0dc0c2b2e 130 if ( RTC_usr1_fptr != NULL)
clemente 4:3bd0dc0c2b2e 131 RTC_usr1_fptr();
clemente 0:12422f7c30d3 132 }
clemente 0:12422f7c30d3 133
clemente 4:3bd0dc0c2b2e 134 unsigned int KL25Z_RTC::RTC_isIRQSecondDone( void)
clemente 4:3bd0dc0c2b2e 135 {
clemente 4:3bd0dc0c2b2e 136 if ( _secIRQ_Done) {
clemente 4:3bd0dc0c2b2e 137 _secIRQ_Done=0;
clemente 4:3bd0dc0c2b2e 138 return 1;
clemente 4:3bd0dc0c2b2e 139 } else
clemente 4:3bd0dc0c2b2e 140 return 0;
clemente 4:3bd0dc0c2b2e 141 }
clemente 4:3bd0dc0c2b2e 142
clemente 4:3bd0dc0c2b2e 143 unsigned int KL25Z_RTC::RTC_isIRQAlarmDone( void)
clemente 4:3bd0dc0c2b2e 144 {
clemente 4:3bd0dc0c2b2e 145 if ( _alrmIRQ_Done) {
clemente 4:3bd0dc0c2b2e 146 _alrmIRQ_Done=0;
clemente 4:3bd0dc0c2b2e 147 return 1;
clemente 4:3bd0dc0c2b2e 148 } else
clemente 4:3bd0dc0c2b2e 149 return 0;
clemente 4:3bd0dc0c2b2e 150 }
clemente 4:3bd0dc0c2b2e 151