89 lines
1.8 KiB
C
89 lines
1.8 KiB
C
#include "M451Series.h"
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#include "global.h"
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/**
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* @brief PWM0 IRQ Handler
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*
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* @param None
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*
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* @return None
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*
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* @details ISR to handle PWM0 interrupt event
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*/
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uint32_t cnt = 0;
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uint32_t out = 0;
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uint32_t X_AxisStep = 0;
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void PWM0P0_IRQHandler(void)
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{
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static uint32_t lastStep = 0;
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if (X_AxisStep > 0){
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X_AxisStep--;
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}
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if((X_AxisStep > 0) && (lastStep <= 0)){
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PWM_EnableOutput(PWM0, PWM_CH_0_MASK | PWM_CH_1_MASK | PWM_CH_2_MASK | PWM_CH_3_MASK);
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}else if((X_AxisStep <= 0) && (lastStep > 0)){
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PWM_DisableOutput(PWM0, PWM_CH_0_MASK | PWM_CH_1_MASK | PWM_CH_2_MASK | PWM_CH_3_MASK);
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}
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lastStep = X_AxisStep;
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// Clear channel 0 period interrupt flag
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PWM_ClearPeriodIntFlag(PWM0, 0);
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}
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/**
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* @brief GPIO PB IRQ
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*
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* @param None
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*
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* @return None
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*
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* @details The PB default IRQ, declared in startup_M451Series.s.
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*/
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void GPB_IRQHandler(void)
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{
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/* To check if PB.2 interrupt occurred */
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if(GPIO_GET_INT_FLAG(PB, BIT2))
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{
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X_AxisStep = 200;
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GPIO_CLR_INT_FLAG(PB, BIT2);
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printf("PB.2 INT occurred.\n");
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}
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else
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{
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/* Un-expected interrupt. Just clear all PB interrupts */
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PB->INTSRC = PB->INTSRC;
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printf("Un-expected interrupts.\n");
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}
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}
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/**
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* @brief GPIO PC IRQ
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*
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* @param None
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*
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* @return None
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*
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* @details The PC default IRQ, declared in startup_M451Series.s.
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*/
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void GPC_IRQHandler(void)
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{
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/* To check if PC.5 interrupt occurred */
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if(GPIO_GET_INT_FLAG(PC, BIT5))
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{
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X_AxisStep = 200;
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GPIO_CLR_INT_FLAG(PC, BIT5);
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printf("PC.5 INT occurred.\n");
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}
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else
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{
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/* Un-expected interrupt. Just clear all PC interrupts */
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PC->INTSRC = PC->INTSRC;
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printf("Un-expected interrupts.\n");
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}
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}
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