stm32DMA采集一个AD数据并通过DMA向串口发送

stm32DMA采集一个AD数据并通过DMA向串口发送
#include#include\#include\#include\#include\#include\
e某
ternuint32_tSendBuff;floatADC_Received;uint32_tADC_Received1;uin t8_tADC_Received2[11];
//printf函数重新定向，方便在程序中使用intfputc(intch,FILE 某f){USART_SendData(USART1,(unignedchar)ch);while(!(USART1-
>SR&USART_FLAG_T某E));return(ch);}
voiduart_putchar(uint8_tch){
USART_SendData(USART1,ch);
while(USART_GetFlagStatu(USART1,USART_FLAG_T某E)==RESET);} intmain(){ADC1_Config();DMA_Config();USART1_Config();while(1 ){
//ADC_Received=(float)ADC_GetConverionValue(ADC1)某
3.3/4069;//ADC_Received1=ADC_Received某
1000000000;ADC_Received=(float)SendBuff某
3.3/4069;ADC_Received1=ADC_Received某
1000000000;ADC_Received2[0]=(ADC_Received1/1000000000+0某30);//uart_putchar(0某2e);
ADC_Received2[1]=(ADC_Received100000000/100000000+0某30);
ADC_Received2[2]=(ADC_Received1000000000000000/10000000+0某30);ADC_Received2[3]=(ADC_Received1000000000000000000000/1000000 +0某30);
ADC_Received2[4]=(ADC_Received100000000000000000000000000/10 0000+0某30);
ADC_Received2[5]=(ADC_Received100000000000000000000000000000 0/10000+0某30);
ADC_Received2[6]=(ADC_Received100000000000000000000000000000 0000/1000+0某30);
ADC_Received2[7]=(ADC_Received100000000000000000000000000000 000000/100+0某30);
ADC_Received2[8]=(ADC_Received100000000000000000000000000000 0000000/10+0某30);ADC_Received2[9]=(ADC_Received1+0某
30);ADC_Received2[10]=0某0d;USART_DMACmd(USART1,USART_DMAReq_T 某,ENABLE);//delay_m(1000);
//USART_DMACmd(USART1,USART_DMAReq_T
某,DISABLE);//delay_m(1000);
//ADC_Received=(float)SendBuff/4069某3.3;
//ADC_Received=(u16)ADC1->DR;
//ADC_Received=(float)ADC_Received/4069某3.3;//printf(\
//while(!ADC_GetFlagStatu(ADC1,ADC_FLAG_EOC));
//uart_putchar('\\r');//uart_putchar('\\n');
//uart_putchar(0某0d);//uart_putchar(0某0a);
//printf(\//printf(\
//printf(\}
}
#include\
voidADC1_Config(void){
ADC_InitTypeDefADC_InitStructure;RCC_APB2PeriphClockCmd(RCC_ APB2Periph_ADC1,ENABLE);ADC1_Gpio_Config();ADC_DeInit(ADC1);//复位ADC1,将外设ADC1的全部寄存器重设为缺省值//ADC1配置ADC_InitStructure.ADC_Mode=ADC_Mode_Independent;//ADC1工作在独立模式ADC_InitStructure.ADC_ScanConvMode=ENABLE;//使能扫描ADC_InitStructure.ADC_ContinuouConvMode=ENABLE;;//ADC转换工作在连续模式ADC_InitStructure.ADC_E某ternalTrigConv=ADC_E某ternalTrigConv_None;//由软件控制转换
ADC_InitStructure.ADC_DataAlign=ADC_DataAlign_Right;//转换数据右对齐ADC_InitStructure.ADC_NbrOfChannel=1;//转换通道为通道
1ADC_Init(ADC1,&ADC_InitStructure);//初始化ADC
//ADC1选择信道0,顺续等级1,采样时间239.5个周期
ADC_RegularChannelConfig(ADC1,ADC_Channel_0,1,ADC_SampleTime _28Cycle5);
//打开ADC1
ADC_Cmd(ADC1,ENABLE);
//重置ADC1校准寄存器
ADC_ReetCalibration(ADC1);//等待ADC1校准重置完成
while(ADC_GetReetCalibrationStatu(ADC1));
//开始ADC1校准
ADC_StartCalibration(ADC1);
//等待ADC1校准完成
while(ADC_GetCalibrationStatu(ADC1));
//使能ADC1软件开始转换
ADC_SoftwareStartConvCmd(ADC1,ENABLE);//配置ADC时钟
=PCLK21/612MHzRCC_ADCCLKConfig(RCC_PCLK2_Div6);
//使能ADC1模块DMA
ADC_DMACmd(ADC1,ENABLE);}
taticvoidADC1_Gpio_Config(void){
GPIO_InitTypeDefGPIO_InitStructure;RCC_APB2PeriphClockCmd(RC C_APB2Periph_GPIOA,ENABLE);GPIO_InitStructure.GPIO_Mode=GPIO_Mod e_AIN;GPIO_InitStructure.GPIO_Pin=GPIO_Pin_0;GPIO_Init(GPIOA,&GP IO_InitStructure);}
#include\
/某其他函数里USART_DMACmd(USART1,USART_DMAReq_T
某,ENABLE);uint32_tSendBuff;
e某ternfloatADC_Received;
e某ternuint8_tADC_Received2[11];//描述：DMA串口的初始化配置
voidDMA_Config(void){//初始化结构体
DMA_InitTypeDefDMA_InitStructure;//开启DMA时钟
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1,ENABLE);//配置DMA中断NVIC_Config();
//设置DMA源：地址
DMA_InitStructure.DMA_PeripheralBaeAddr=(u32)&ADC1->DR;//某内存地址(要传输的变量的指针)
DMA_InitStructure.DMA_DIR=DMA_DIR_PeripheralSRC;//指定DMA通道的DMA缓存的大小，单位为数据单位。

DMA_InitStructure.DMA_BufferSize=1;
某///某外设地址不增
DMA_InitStructure.DMA_PeripheralInc=DMA_PeripheralInc_Diable ;//某内存地址不增
DMA_InitStructure.DMA_MemoryInc=DMA_MemoryInc_Diable;//某外设数据单位数据宽度为16位
DMA_InitStructure.DMA_PeripheralDataSize=DMA_PeripheralDataS ize_HalfWord;//某内存数据单位数据宽度为16位
DMA_InitStructure.DMA_MemoryDataSize=DMA_MemoryDataSize_Half Word;//某DMA模式：一次传输/循环//DMA_Mode_Circular工作在循环缓存模式//DMA_Mode_Normal工作在正常缓存模式
//DMA_InitStructure.DMA_Mode=DMA_Mode_Normal;DMA_InitStructu re.DMA_Mode=DMA_Mode_Circular;//某优先级：高
DMA_InitStructure.DMA_Priority=DMA_Priority_High;//某禁止内存到内存的传输
DMA_InitStructure.DMA_M2M=DMA_M2M_Diable;//某配置DMA1的1通道
DMA_Init(DMA1_Channel1,&DMA_InitStructure);//使能
DMADMA_Cmd(DMA1_Channel1,ENABLE);
//配置DMA发送完成后产生中断
//DMA_ITConfig(DMA1_Channel1,DMA_IT_TC,ENABLE);
//某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某/////某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某/////某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某某///
//设置DMA源：地址
DMA_InitStructure.DMA_PeripheralBaeAddr=(u32)&USART1->DR;//某内存地址(要传输的变量的指针)
DMA_InitStructure.DMA_MemoryBaeAddr=(u32)ADC_Received2;//外设作为数据传输的目的地。