STM32F103ZET6 定时器触发ADC采集，用DMA方式将数据传入CPU，但程序总是不执行DMA中断，求助各位大佬我的初始化配置哪里出了问题

龚向新 · 发表于 2019-7-16 11:18:53

本帖最后由龚向新于 2019-7-16 11:49 编辑

#include "adc.h"
#include "delay.h"
#include "stm32f10x.h"
#include <stdio.h>
#include "string.h"
#include "stm32f10x.h"
#include "led.h"

#define ADC_BUFF_LEN 200
#define ADC1_DR_Address ((uint32_t)0x4001244C)
uint16_t ADC_ConvertedValue[ADC_BUFF_LEN];
uint16_t WriteBuff[ADC_BUFF_LEN];

void  Adc_Init(void)
{
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_ADC1 , ENABLE ); //Ê¹ÄÜADC1Í¨µÀÊ±ÖÓ/////

RCC_ADCCLKConfig(RCC_PCLK2_Div6); //ÉèÖÃADC·ÖÆµÒò×Ó6 72M/6=12,ADC×î´óÊ±¼ä²»ÄÜ³¬¹ý14M
//PA1 ×÷ÎªÄ£ÄâÍ¨µÀÊäÈëÒý½Å
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;  //Ä£ÄâÊäÈëÒý½Å
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
ADC_DeInit(ADC1);  //¸´Î»ADC1
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //ADC¹¤×÷Ä£Ê½:ADC1ºÍADC2¹¤×÷ÔÚ¶ÀÁ¢Ä£Ê½
ADC_InitStructure.ADC_ScanConvMode = DISABLE; //Ä£Êý×ª»»¹¤×÷ÔÚµ¥Í¨µÀÄ£Ê½
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE; //Ä£Êý×ª»»¹¤×÷ÔÚµ¥´Î×ª»»Ä£Ê½
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1; //×ª»»ÓÉÈí¼þ¶ø²»ÊÇÍâ²¿´¥·¢Æô¶¯
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //ADCÊý¾ÝÓÒ¶ÔÆë
ADC_InitStructure.ADC_NbrOfChannel = 2; //Ë³Ðò½øÐÐ¹æÔò×ª»»µÄADCÍ¨µÀµÄÊýÄ¿
ADC_Init(ADC1, &ADC_InitStructure); //¸ù¾ÝADC_InitStructÖÐÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèADCxµÄ¼Ä´æÆ÷

ADC_TempSensorVrefintCmd(ENABLE);

  ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_13Cycles5 );

ADC_Cmd(ADC1, ENABLE); //Ê¹ÄÜÖ¸¶¨µÄADC1

//ADC_ExternalTrigConvCmd(ADC1, ENABLE);///ÑÏÖØ»³ÒÉÒª²»Òª

ADC_DMACmd(ADC1, ENABLE);

ADC_ResetCalibration(ADC1); //Ê¹ÄÜ¸´Î»Ð£×¼
while(ADC_GetResetCalibrationStatus(ADC1)); //µÈ´ý¸´Î»Ð£×¼½áÊø
ADC_StartCalibration(ADC1);  //¿ªÆôADÐ£×¼
while(ADC_GetCalibrationStatus(ADC1));  //µÈ´ýÐ£×¼½áÊø

ADC_SoftwareStartConvCmd(ADC1, ENABLE);  //Ê¹ÄÜÖ¸¶¨µÄADC1µÄÈí¼þ×ª»»Æô¶¯¹¦ÄÜ

//ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_239Cycles5 ); //ADC1,ADCÍ¨µÀ,²ÉÑùÊ±¼äÎª239.5ÖÜÆÚ
}

void ADC1_ExternalTrig_T1_CC1_Init(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef       TIM_OCInitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
/* Time Base configuration */
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = 1000-1;
TIM_TimeBaseStructure.TIM_Prescaler = 72-1;
TIM_TimeBaseStructure.TIM_ClockDivision = 0x00;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
/* TIM1 channel1 configuration in PWM mode */
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 500;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
TIM_OC1Init(TIM1, &TIM_OCInitStructure);
TIM_CtrlPWMOutputs(TIM1, ENABLE);
TIM_Cmd(TIM1, DISABLE);
}
void ADC1_DMA1_Init(void)
{
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
//NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* DMA1 Channel1 Configuration ----------------------------------------------*/
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)ADC_ConvertedValue;////
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = 2;////¸ÄÎª2£¿
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;/////
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;/////
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel1, &DMA_InitStructure);
DMA_ITConfig(DMA1_Channel1, DMA_IT_TC | DMA_IT_HT, ENABLE);///
/* Enable DMA1 channel1 */
DMA_Cmd(DMA1_Channel1, ENABLE);
}
void ADC1_DMA1_IT_Hander(void)
{
if(DMA_GetFlagStatus(DMA1_FLAG_HT1))
{
      DMA_ClearITPendingBit(DMA_IT_HT);
      memcpy(WriteBuff, ADC_ConvertedValue, ADC_BUFF_LEN*sizeof(uint16_t)/2);LED0=!LED0;
}
if(DMA_GetFlagStatus(DMA1_FLAG_TC1))
{
      DMA_ClearITPendingBit(DMA1_FLAG_TC1);
      memcpy(WriteBuff+ADC_BUFF_LEN/2, ADC_ConvertedValue+ADC_BUFF_LEN/2, ADC_BUFF_LEN*sizeof(uint16_t)/2);LED0=!LED0;
}
}

peng1554 · 发表于 2019-7-16 11:18:54

看能参考帖子不;http://www.openedv.com/forum.php ... 8%CA%B1%C6%F7%2BADC

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STM32F103ZET6 定时器触发ADC采集，用DMA方式将数据传入CPU，但程序总是不执行DMA中断，求助各位大佬我的初始化配置哪里出了问题

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