forked from trocache/RefKEIL
85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
#include "timerdriver.h"
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#include "gpiodriver.h"
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void MyTimer_Base_Init(MyTimer_Struct_TypeDef * Timer)
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{
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//TIM1 uses the APB2ENR register from RCC. The others uses the APB1ENR, so we check this value.
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if(Timer->Timer == TIM1)
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{
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RCC->APB2ENR |= TimerX2Int(Timer->Timer);
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} else {
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RCC->APB1ENR |= TimerX2Int(Timer->Timer);
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}
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Timer->Timer->ARR = Timer->ARR;
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Timer->Timer->PSC = Timer->PSC;
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}
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void MyTimer_ActiveIT(TIM_TypeDef * TimerX, uint8_t Prio)
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{
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uint8_t positionTimerIT = TimerIT2UInt(TimerX);
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TimerX->DIER |= (0x1<<UIE);
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NVIC->IP[positionTimerIT] |= (Prio << 0x4);
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NVIC->ISER[0] |= (0x1<<positionTimerIT);
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}
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void TIM2_IRQHandler(void)
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{
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MyGPIO_Toggle(GPIOA,5);
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//we reset the flag
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TIM2->SR &= ~(0x1<<UIF);
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}
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int TimerX2Int(TIM_TypeDef * TimerX)
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{
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if(TimerX == TIM1)
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{
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return (0x01 << 11);
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} else if (TimerX == TIM2){
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return (0x01 << 0);
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} else if (TimerX == TIM3){
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return (0x01 << 1);
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} else if (TimerX == TIM4){
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return (0x01 << 2);
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} /*else if (TimerX == TIM5){
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return (0x01 << 3);
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} else if (TimerX == TIM6){
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return (0x01 << 4);
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} else if (TimerX == TIM7){
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return (0x01 << 5);
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} else if (TimerX == TIM8){
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return (0x01 << 13);
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} else if (TimerX == TIM9){ //For now we dont do timer > 4
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return (0x01 << 19);
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} else if (TimerX == TIM10){
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return (0x01 << 20);
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} else if (TimerX == TIM11){
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return (0x01 << 21);
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} else if (TimerX == TIM12){
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return (0x01 << 6);
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} else if (TimerX == TIM13){
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return (0x01 << 7);
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} else if (TimerX == TIM14){
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return (0x01 << 8);
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}*/ else {
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return -1;
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};
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}
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uint8_t TimerIT2UInt(TIM_TypeDef * TimerX)
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{
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if(TimerX == TIM1)
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{
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return TIM1_CC_IRQn;
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} else if(TimerX == TIM2)
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{
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return TIM2_IRQn;
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} else if(TimerX == TIM3)
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{
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return TIM3_IRQn;
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} else if(TimerX == TIM4)
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{
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return 30;
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} else {
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return 0;
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}
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}
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