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dma 设置方向，长度，中断等

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This commit is contained in:
hm-thinkbook14p
2023-06-21 01:10:35 +08:00
parent aca0b9b000
commit c23ddf3e28
8 changed files with 9264 additions and 9300 deletions
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DRV/drv_adc.c
+10 -43
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@@ -14,30 +14,6 @@ void DMA1_Channel1_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast
uint32_t adc_raw[4] = {0};
void dma_init(DMA_Channel_TypeDef *Channel, u32 Peripheral, u32 Memory, u16 size)
{
DMA_InitTypeDef DMA_InitStructure = {0};
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
DMA_DeInit(Channel);
DMA_InitStructure.DMA_PeripheralBaseAddr = Peripheral;
DMA_InitStructure.DMA_MemoryBaseAddr = Memory;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = size;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_Medium;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(Channel, &DMA_InitStructure);
DMA_Cmd(DMA1_Channel1, ENABLE);
DMA_ITConfig(DMA1_Channel1, DMA_IT_TC, ENABLE);
}
void adc_init(void)
{
@@ -63,15 +39,12 @@ void adc_init(void)
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; //内存地址增加
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word ; //外设数据单位
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word ; //内存数据单位
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular ; //DMA模式：循环传输
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal ; //DMA模式：循环传输
DMA_InitStructure.DMA_Priority = DMA_Priority_Low ; //优先级：高
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; //禁止内存到内存的传输
DMA_Init(DMA1_Channel1, &DMA_InitStructure); //配置DMA1的4通道
DMA_Init(DMA1_Channel1, &DMA_InitStructure); //配置DMA1的1通道
DMA_ITConfig(DMA1_Channel1, DMA_IT_TC, ENABLE);
DMA_Cmd(DMA1_Channel1,ENABLE);
ADC_DeInit(ADC1);
@@ -101,10 +74,6 @@ void adc_init(void)
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1));
//dma_init(DMA1_Channel1, (uint32_t)&ADC1->RDATAR, (uint32_t)adc_raw, sizeof(adc_raw));
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
@@ -117,12 +86,10 @@ void adc_init(void)
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
DMA_ITConfig(DMA1_Channel1, DMA_IT_TC, ENABLE);
DMA_Cmd(DMA1_Channel1,ENABLE);
ADC_ITConfig( ADC1, ADC_IT_EOC, ENABLE);//使能规则通道中断
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}
@@ -135,10 +102,10 @@ void ADC1_2_IRQHandler (void)//
if(ADC_GetITStatus( ADC1, ADC_IT_EOC)!=RESET)
{
//中断真的来了就要读取转换值了
//printf("adc:interrupt");
//printf("adc-interrupt");
ADC_ClearITPendingBit(ADC1, ADC_IT_EOC);//清除中断
}
ADC_ClearITPendingBit(ADC1, ADC_IT_EOC);//清除中断
}
@@ -147,17 +114,17 @@ void DMA1_Channel1_IRQHandler(void)
if(DMA_GetFlagStatus(DMA1_IT_TC1))
{
//printf("adc dma:%d,%d,%d,%d \n", adc_raw[0],adc_raw[1],adc_raw[2],adc_raw[3]);
printf("adc dma:%4d,%4d,%4d,%4d \n", adc_raw[0],adc_raw[1],adc_raw[2],adc_raw[3]);
/* 失能DMA1通道1，以防在中断过程中发生DMA传输 */
DMA_Cmd(DMA1_Channel1, DISABLE);
/* 如果DMA设置的是normal模式，需要手动重装计数器 */
// DMA1_Channel1->CNDTR = BUFFER_SIZE;
DMA1_Channel1->CNTR = sizeof(adc_raw);
/* 清除中断标志位 */
DMA_ClearITPendingBit(DMA1_IT_TC1);
// DMA_ClearFlag(DMA1_FLAG_TC1);
/* 重新使能DMA1通道1，开始工作 */
DMA_ITConfig(DMA1_Channel1, DMA_IT_TC, ENABLE);
//DMA_ITConfig(DMA1_Channel1, DMA_IT_TC, ENABLE);
DMA_Cmd(DMA1_Channel1,ENABLE);
}
}