101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
#include "../main/SystemInclude.h"
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/* 配置DMAMUX（DMA多路复用器） */
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void DMA_DMAMUX_CFG(DMA_CHANNEL_t channel,DMAMUX_REQ_SRC_t source)
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{
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DMAMUX_InitTypeDef DMAMUX_InitStructure;
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DMAMUX_InitStructure.DMA_Channel = channel;
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DMAMUX_InitStructure.Request_Source = source;
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DMAMUX_InitStructure.Periodic_Trigger = DISABLE;
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DMAMUX_InitStructure.Cmd = ENABLE;
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LHL_DMAMUX_Init(&DMAMUX_InitStructure);
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}
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/**------------------------------------------------------------------------
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* @brief 中断回调函数注册
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* @note
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* @param
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* @example:
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**/
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static dma_callbacks_t dma_callbacks[4] = {NULL};
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void DMA_register_irq_callback(DMA_CHANNEL_t dmachannel, dma_half_irq_callback_t dma_half_irq_callback ,dma_major_irq_callback_t dma_major_irq_callback)
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{
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dma_callbacks[dmachannel].half_callback = dma_half_irq_callback;
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dma_callbacks[dmachannel].major_callback = dma_major_irq_callback;
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switch (dmachannel) { //获取 EXTI 线对应的 IRQ 号
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case DMA_CHANNEL_0: NVIC_EnableIRQ(DMA1_CH0_IRQn); break;
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case DMA_CHANNEL_1: NVIC_EnableIRQ(DMA1_CH1_IRQn); break;
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case DMA_CHANNEL_2:
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case DMA_CHANNEL_3:
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NVIC_EnableIRQ(DMA1_CH2_CH3_IRQn); break;
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default: break; // 不支持的通道
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}
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}
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void DMA1_CH0_IRQHandler(void)
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{
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if(LHL_DMA_GetPending(DMA_CHANNEL_0) == DMA_IT_HALF) {
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if(dma_callbacks[DMA_CHANNEL_0].half_callback != NULL) {
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dma_callbacks[DMA_CHANNEL_0].half_callback();
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}
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} else if(LHL_DMA_GetPending(DMA_CHANNEL_0) == DMA_IT_MAJOR) {
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if(dma_callbacks[DMA_CHANNEL_0].major_callback != NULL) {
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dma_callbacks[DMA_CHANNEL_0].major_callback();
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}
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}
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LHL_DMA_ClearPending(DMA_CHANNEL_0);
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}
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void DMA1_CH1_IRQHandler(void)//
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{
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if(LHL_DMA_GetPending(DMA_CHANNEL_1) == DMA_IT_HALF) {
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if(dma_callbacks[DMA_CHANNEL_1].half_callback != NULL) {
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dma_callbacks[DMA_CHANNEL_1].half_callback();
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}
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} else if(LHL_DMA_GetPending(DMA_CHANNEL_1) == DMA_IT_MAJOR) {
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if(dma_callbacks[DMA_CHANNEL_1].major_callback != NULL) {
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dma_callbacks[DMA_CHANNEL_1].major_callback();
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}
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}
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LHL_DMA_ClearPending(DMA_CHANNEL_1);
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}
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void DMA1_CH2_3_IRQHandler(void)
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{
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if(LHL_DMA_GetPending(DMA_CHANNEL_2) == DMA_IT_HALF) {
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if(dma_callbacks[DMA_CHANNEL_2].half_callback != NULL) {
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dma_callbacks[DMA_CHANNEL_2].half_callback();
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}
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} else if(LHL_DMA_GetPending(DMA_CHANNEL_2) == DMA_IT_MAJOR) {
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if(dma_callbacks[DMA_CHANNEL_2].major_callback != NULL) {
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dma_callbacks[DMA_CHANNEL_2].major_callback();
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}
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}
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if(LHL_DMA_GetPending(DMA_CHANNEL_3) == DMA_IT_HALF) {
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if(dma_callbacks[DMA_CHANNEL_3].half_callback != NULL) {
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dma_callbacks[DMA_CHANNEL_3].half_callback();
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}
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} else if(LHL_DMA_GetPending(DMA_CHANNEL_3) == DMA_IT_MAJOR) {
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if(dma_callbacks[DMA_CHANNEL_3].major_callback != NULL) {
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dma_callbacks[DMA_CHANNEL_3].major_callback();
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}
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}
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LHL_DMA_ClearPending(DMA_CHANNEL_2);
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LHL_DMA_ClearPending(DMA_CHANNEL_3);
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}
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