STM32-内部温度传感器-串口显示-完整程序

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 <stdio.h>
#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
ADC_Cmd(ADC1, ENABLE); //开启ADC1
/* Enable ADC1 reset calibaration register */
ADC_ResetCalibration(ADC1); //重新校准
/* Check the end of ADC1 reset calibration register */
while(ADC_GetResetCalibrationStatus(ADC1)); //等待重新校准完成
/* Start ADC1 calibaration */
ADC_StartCalibration(ADC1); //开始校准
/* Check the end of ADC1 calibration */
while(ADC_GetCalibrationStatus(ADC1)); //等待校准完成 /* Start ADC1 Software Conversion */
ADC_SoftwareStartConvCmd(ADC1, ENABLE); //连续转换开始，ADC通过DMA方式不断的更新RAM区。

while (1)
{
vu16 Temperature,a,b,c,d;
ADCConvertedValueLocal = ADCConvertedValue;
Temperature=(1.43-ADCConvertedValueLocal*3.3/4096)*1000/4.3 5 + 25;
ADCConvertedValueLocal= Temperature;
a =ADCConvertedValueLocal /1000;
b = (ADCConvertedValueLocal - a*1000)/100;
c = (ADCConvertedValueLocal - a*1000 - b*100)/10;
d = ADCConvertedValueLocal - a*1000 - b*100 - c*10;
printf("\r\n 当前STM32芯片内部温度为：%d%d%d%d% ℃.\n\r", a, b, c, d);
Delay_ARMJISHU(8000000);
}
}
void ADC_GPIO_Configuration(void) //ADC配置函数
{
GPIO_InitTypeDef GPIO_InitStructure;
//PC0 作为模拟通道10输入引脚
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; //管脚1
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;//输入模式
GPIO_Init(GPIOC, &GPIO_InitStructure); //GPIO组
}
超级终端显示如下：
关于一些数据格式的定义解释：
#ifndef __STM32F10x_TYPE_H
#define __STM32F10x_TYPE_H
typedef signed long s32;
typedef signed short s16;
typedef signed char s8;
typedef signed long const sc32; typedef signed short const sc16; typedef signed char const sc8;
typedef volatile signed long vs32;
typedef volatile signed short vs16;
typedef volatile signed char vs8;
typedef volatile signed long const vsc32;
typedef volatile signed short const vsc16;
typedef volatile signed char const vsc8;
typedef unsigned long u32;
typedef unsigned short u16;
typedef unsigned char u8;
typedef unsigned long const uc32;
typedef unsigned short const uc16;
typedef unsigned char const uc8;
typedef volatile unsigned long vu32;
typedef volatile unsigned short vu16;
typedef volatile unsigned char vu8;
typedef volatile unsigned long const vuc32;
typedef volatile unsigned short const vuc16;
typedef volatile unsigned char const vuc8;
typedef enum {FALSE = 0, TRUE = !FALSE} bool;
typedef enum {RESET = 0, SET = !RESET} FlagStatus, ITStatus;
typedef enum {DISABLE = 0, ENABLE = !DISABLE} FunctionalState;
#define IS_FUNCTIONAL_STATE(STATE) (((STATE) == DISABLE) || ((STATE) == ENABLE)) typedef enum {ERROR = 0, SUCCESS = !ERROR} ErrorStatus;
#define U8_MAX((u8)255)
#define S8_MAX((s8)127)
#define S8_MIN((s8)-128)
#define U16_MAX((u16)65535u)
#define S16_MAX((s16)32767)
#define S16_MIN((s16)-32768)
#define U32_MAX((u32)4294967295uL) #define S32_MAX((s32)2147483647) #define S32_MIN((s32)-2147483648)
#endif。