STM32_内部温度传感器_串口显示_完整程序文件

STM32F103 内部温度传感器用串口传递到PC上显示

程序如下：

#include "stm32f10x.h"

#include "stm32_eval.h"

#include "stm32f10x_conf.h"

#include

#define DR_ADDRESS ((uint32_t)0x4001244C) //ADC1 DR寄存器基地址

USART_InitTypeDef USART_InitStructure; //串口初始化结构体声明

ADC_InitTypeDef ADC_InitStructure; //ADC初始化结构体声明

DMA_InitTypeDef DMA_InitStructure; //DMA初始化结构体声明

__IO uint16_t ADCConvertedValue; // 在内存中声明一个可读可写变量用来存放AD的转换结果.低12 位有效

void ADC_GPIO_Configuration(void);

static void Delay_ARMJISHU(__IO uint32_t nCount)

{ for (; nCount != 0; nCount--);}

int main(void)

{

u16 ADCConvertedValueLocal;

USART_ART_BaudRate = 115200;

USART_ART_WordLength = USART_WordLength_8b;

USART_ART_StopBits = USART_StopBits_1;

USART_ART_Parity = USART_Parity_No;

USART_ART_HardwareFlowControl = USART_HardwareFlowControl_None;

USART_ART_Mode = USART_Mode_Rx | USART_Mode_Tx;

STM_EVAL_COMInit(COM1, &USART_InitStructure);

/* Enable DMA1 clock */

RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);

DMA_DeInit(DMA1_Channel1); //开启DMA1的第一通道

DMA_InitStructure.DMA_PeripheralBaseAddr = DR_ADDRESS; DMA_InitStructure.DMA_MemoryBaseAddr=(uint32_t)&ADCConver tedValue;

DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; //DMA 的转换模式为SRC模式.由外设搬移到内存

DMA_InitStructure.DMA_BufferSize = 1; //DMA缓存大小.1个

DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; //接收一次数据后.设备地址禁止后移

DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;

//关闭接收一次数据后.目标内存地址后移

DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; //定义外设数据宽度为16位 DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; //DMA搬移数据尺寸.HalfWord就是为16位

DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; //转换模式.循环缓存模式。

DMA_InitStructure.DMA_Priority = DMA_Priority_High; //DMA 优先级高

DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; //M2M

模式禁用

DMA_Init(DMA1_Channel1, &DMA_InitStructure);

/* Enable DMA1 channel1 */

DMA_Cmd(DMA1_Channel1, ENABLE);

/* Enable ADC1 and GPIOC clock */

RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOC, ENABLE); //使能ADC和GPIOC时钟

/* ADC1 configuration ------------------------------------------------------*/

ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //

独立的转换模式

ADC_InitStructure.ADC_ScanConvMode = ENABLE; //开启

扫描模式

ADC_InitStructure.ADC_ContinuousConvMode = ENABLE; //开

启连续转换模式

ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //ADC外部开关.关闭状态

ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //对齐方式,ADC为12位中.右对齐方式

ADC_InitStructure.ADC_NbrOfChannel = 1; //开启通道数.1个

ADC_Init(ADC1, &ADC_InitStructure);

/* ADC1 regular channel13 configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_16, 1, ADC_SampleTime_55Cycles5);

//ADC通道组. 第11个通道采样顺序1.转换时间

/* Enable ADC1 DMA */

ADC_DMACmd(ADC1, ENABLE); //ADC命令.使能

/* Enable ADC1 */

ADC_TempSensorVrefintCmd(ENABLE); //使能温度传感器和内部

参考电压通道