ADC-DMA单通道中断模式，居然不成功，求解！

*#include "stm32f10x.h"

#include "SysTick.h"

#include "key.h"

#include "uart.h"

#include "led.h"

#include "dma.h"

#include "adc1_mulitchannel.h"



extern u16 rebuf[20];

extern u8 flag;



void NVIC_Configuration(void);



int main(void)

{

u8 count = 0;

SysTick_Init();

NVIC_Configuration();

UART_INIT_Config();

// LED_GPIO_Config();

// KEY_GPIO_Config();

DMA_INIT_Config();

ADC_Configuration();



while(1)

{

if (flag)

{

flag = 0;

for (count=0 ;count<20 ;count++)

{

printf("%d",rebuf[count]);

printf("\x00D\x00A");

}

}

}

}



void NVIC_Configuration(void)

{

NVIC_InitTypeDef NVIC_InitStructure; 

/* Set the Vector Table base location at 0x08000000 */

NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);



/* Configure the NVIC Preemption Priority Bits */ 

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);



NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel1_IRQn;

NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;

NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;

NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;



NVIC_Init(&NVIC_InitStructure);

}

#include "adc1_mulitchannel.h"



void ADC_Configuration(void)

{

GPIO_InitTypeDef GPIO_InitStructure;

ADC_InitTypeDef ADC_InitStructure;



RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);

RCC_ADCCLKConfig(RCC_PCLK2_Div6);



GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 ;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;

GPIO_Init(GPIOC, &GPIO_InitStructure);



ADC_DeInit(ADC1); //复位ADC1,将外设 ADC1 的全部寄存器重设为缺省值



ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //ADC工作模式:ADC1和ADC2工作在独立模式

ADC_InitStructure.ADC_ScanConvMode = ENABLE; //模数转换工作在单通道模式

ADC_InitStructure.ADC_ContinuousConvMode = ENABLE; //模数转换工作在连续转换模式

ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //转换由软件而不是外部触发启动

ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //ADC数据右对齐

ADC_InitStructure.ADC_NbrOfChannel = 1; //顺序进行规则转换的ADC通道的数目

ADC_Init(ADC1, &ADC_InitStructure); //根据ADC_InitStruct中指定的参数初始化外设ADCx的寄存器 



// ADC_TempSensorVrefintCmd(ENABLE);



ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 1, ADC_SampleTime_239Cycles5 );



ADC_DMACmd(ADC1, ENABLE);



ADC_Cmd(ADC1, ENABLE); //使能指定的ADC1



ADC_ResetCalibration(ADC1); //使能复位校准 



while(ADC_GetResetCalibrationStatus(ADC1)); //等待复位校准结束



ADC_StartCalibration(ADC1); //开启AD校准



while(ADC_GetCalibrationStatus(ADC1)); //等待校准结束



ADC_SoftwareStartConvCmd(ADC1, ENABLE);



}

#include "dma.h"

#include "led.h"



u16 rebuf[20];

u8 flag;



void DMA_INIT_Config(void)

{

DMA_InitTypeDef DMA_InitStructure;



RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);

/* DMA channel1 configuration */

DMA_DeInit(DMA1_Channel1);

DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)ADC1_DR_Address;

DMA_InitStructure.DMA_MemoryBaseAddr = (u32)rebuf;

DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;

DMA_InitStructure.DMA_BufferSize = 20; 

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_PeripheralDataSize_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, ENABLE); 

/* Enable DMA channel1 */

DMA_Cmd(DMA1_Channel1, ENABLE);

}



void DMA1_Channel1_IRQHandler(void)

{ 

if(DMA_GetITStatus(DMA1_IT_TC1)) 

{

ADC_Cmd(ADC1, DISABLE);

DMA_Cmd(DMA1_Channel1, DISABLE); 

flag = !flag;

DMA_ClearFlag(DMA1_FLAG_TC1);

DMA_ClearITPendingBit(DMA1_IT_TC1); 

} 

}