能打包程序给我参考下么        貌似串口打印  不需要开DMA4通道        

564646396 发表于 2017-5-17 14:03
能打包程序给我参考下么        貌似串口打印  不需要开DMA4通道

怎么发文件？

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openedvxiaowang 发表于 2017-5-17 15:09
你用的是ADC和DMA，不关串口的事，为啥使能串口DMA呢

是这样的，ADC的值通过DMA发送到RAM,然后吧RAM的值通过DMA发送到串口

564646396 发表于 2017-5-17 14:37
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[mw_shl_code=c,true]#include "DMA.h"
#include "stm32f10x.h"

u16 size;
void MYDMA_Init1(uint32_t MADDR,uint32_t ADC_ADDR,u16 BSIZE)
{
        DMA_InitTypeDef DMA_InitStruct;
       
        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1,ENABLE);
       
        size=BSIZE;
        DMA_InitStruct.DMA_BufferSize=BSIZE;
        DMA_InitStruct.DMA_DIR=DMA_DIR_PeripheralSRC;                //íaéèμ½Äú′æ
        DMA_InitStruct.DMA_M2M=DMA_M2M_Disable;
        DMA_InitStruct.DMA_MemoryBaseAddr=MADDR;
        DMA_InitStruct.DMA_MemoryDataSize=DMA_MemoryDataSize_HalfWord;
        DMA_InitStruct.DMA_MemoryInc=DMA_MemoryInc_Enable;
        DMA_InitStruct.DMA_Mode=DMA_Mode_Circular;
        DMA_InitStruct.DMA_PeripheralBaseAddr=ADC_ADDR;
        DMA_InitStruct.DMA_PeripheralDataSize=DMA_PeripheralDataSize_HalfWord;
        DMA_InitStruct.DMA_PeripheralInc=DMA_PeripheralInc_Disable;
        DMA_InitStruct.DMA_Priority=DMA_Priority_High;
        DMA_Init(DMA1_Channel1,&DMA_InitStruct);       
}

void MYDMA_Init2(uint32_t MADDR,uint32_t USART_ADDR,u16 BSIZE)
{
        DMA_InitTypeDef DMA_InitStruct;
       
        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1,ENABLE);
       
        size=BSIZE;
       
        DMA_InitStruct.DMA_BufferSize=BSIZE;
        DMA_InitStruct.DMA_DIR=DMA_DIR_PeripheralDST;                //Äú′æμ½íaéè
        DMA_InitStruct.DMA_M2M=DMA_M2M_Disable;
        DMA_InitStruct.DMA_MemoryBaseAddr=MADDR;
        DMA_InitStruct.DMA_MemoryDataSize=DMA_MemoryDataSize_HalfWord;
        DMA_InitStruct.DMA_MemoryInc=DMA_MemoryInc_Enable;
        DMA_InitStruct.DMA_Mode=DMA_Mode_Circular;
        DMA_InitStruct.DMA_PeripheralBaseAddr=USART_ADDR;
        DMA_InitStruct.DMA_PeripheralDataSize=DMA_PeripheralDataSize_HalfWord;
        DMA_InitStruct.DMA_PeripheralInc=DMA_PeripheralInc_Disable;
        DMA_InitStruct.DMA_Priority=DMA_Priority_Medium;
        DMA_Init(DMA1_Channel4,&DMA_InitStruct);
               
}

void A2M_DMA_Enable()
{
        DMA_Cmd(DMA1_Channel1,DISABLE);
        DMA_SetCurrDataCounter(DMA1_Channel1,size);
        DMA_Cmd(DMA1_Channel1,ENABLE);
        while(DMA_GetFlagStatus(DMA1_FLAG_TC1)==RESET);
        DMA_ClearFlag(DMA1_FLAG_TC1);
}

void M2U_DMA_Enable()
{
        DMA_Cmd(DMA1_Channel4,DISABLE);
        DMA_SetCurrDataCounter(DMA1_Channel4,size);
        DMA_Cmd(DMA1_Channel4,ENABLE);
        USART_DMACmd(USART1,USART_DMAReq_Tx,ENABLE);
        while(DMA_GetFlagStatus(DMA1_FLAG_TC4)==RESET);
        DMA_ClearFlag(DMA1_FLAG_TC4);
}





#include "ADC.h"
#include "stm32f10x.h"

void MYADC_Init()
{
        GPIO_InitTypeDef GPIO_InitStruct;
        ADC_InitTypeDef ADC_InitStruct;
       
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_ADC1,ENABLE);
        RCC_ADCCLKConfig(RCC_PCLK2_Div6);
       
        GPIO_InitStruct.GPIO_Mode=GPIO_Mode_AIN;
        GPIO_InitStruct.GPIO_Pin=GPIO_Pin_1;
        //GPIO_InitStruct.GPIO_Speed=GPIO_Speed_2MHz;
        GPIO_Init(GPIOA,&GPIO_InitStruct);
       
        ADC_InitStruct.ADC_ContinuousConvMode=DISABLE;
        ADC_InitStruct.ADC_DataAlign=ADC_DataAlign_Right;
        ADC_InitStruct.ADC_ExternalTrigConv=ADC_ExternalTrigConv_None;
        ADC_InitStruct.ADC_Mode=ADC_Mode_Independent;
        ADC_InitStruct.ADC_NbrOfChannel=1;
        ADC_InitStruct.ADC_ScanConvMode=DISABLE;
        ADC_Init(ADC1,&ADC_InitStruct);
       
        ADC_RegularChannelConfig(ADC1,ADC_Channel_1,1,ADC_SampleTime_71Cycles5);
       
        ADC_DMACmd(ADC1,ENABLE);
        ADC_Cmd(ADC1,ENABLE);
       
        ADC_ResetCalibration(ADC1);
        while(ADC_GetResetCalibrationStatus(ADC1));
        ADC_StartCalibration(ADC1);
        while(ADC_GetCalibrationStatus(ADC1));
}

u16 MYADC_ENABLE()
{
        ADC_RegularChannelConfig(ADC1,ADC_Channel_1,1,ADC_SampleTime_71Cycles5);
        ADC_SoftwareStartConvCmd(ADC1,ENABLE);
        while(!ADC_GetFlagStatus(ADC1,ADC_FLAG_EOC));
        return ADC_GetConversionValue(ADC1);
}

[/mw_shl_code]