STM32F103学习笔记（十五）——内部温度传感器实验
实验十五 内部温度传感器实验
初始化参考代码：
#include "intemp.h"
#include "delay.h"
#include "sys.h"
//初始化ADC
//这里我们仅以规则通道为例
//我们默认将开启通道0~3
void T_Adc_Init(void) //ADC通道初始化
{
ADC_InitTypeDef ADC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_ADC1 , ENABLE ); //使能GPIOA,ADC1通道时钟
RCC_ADCCLKConfig(RCC_PCLK2_Div6); //分频因子6时钟为72M/6=12MHz
ADC_DeInit(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 = DISABLE; //模数转换工作在单通道模式
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE; //模数转换工作在单次转换模式
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); //开启内部温度传感器
ADC_Cmd(ADC1, ENABLE); //使能指定的ADC1
ADC_ResetCalibration(ADC1); //重置指定的ADC1的复位寄存器
while(ADC_GetResetCalibrationStatus(ADC1)); //获取ADC1重置校准寄存器的状态,设置状态则等待
ADC_StartCalibration(ADC1); //
while(ADC_GetCalibrationStatus(ADC1)); //获取指定ADC1的校准程序,设置状态则等待
}
u16 T_Get_Adc(u8 ch)
{
ADC_RegularChannelConfig(ADC1, ch, 1, ADC_SampleTime_239Cycles5 ); //ADC1,ADC通道3,第一个转换,采样时间为239.5周期
ADC_SoftwareStartConvCmd(ADC1, ENABLE); //使能指定的ADC1的软件转换启动功能
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC ));//等待转换结束
return ADC_GetConversionValue(ADC1); //返回最近一次ADC1规则组的转换结果
}
//得到ADC采样内部温度传感器的值
//取10次,然后平均
u16 T_Get_Temp(void)
{
u16 temp_val=0;
u8 t;
for(t=0;t<10;t++)
{
temp_val+=T_Get_Adc(ADC_Channel_16); //TampSensor
delay_ms(5);
}
return temp_val/10;
}
//获取通道ch的转换值
//取times次,然后平均
u16 T_Get_Adc_Average(u8 ch,u8 times)
{
u32 temp_val=0;
u8 t;
for(t=0;t主函数功能参考代码：
#include "stm32f10x.h"
#include "led.h"
#include "delay.h"
#include "beep.h"
#include "key.h"
#include "exti.h"
#include "sys.h"
#include "usart.h"
#include "timer.h"
#include "tpad.h"
#include "lcd.h"
#include "usmart.h"
#include "rtc.h"
#include "adc.h"
#include "intemp.h"
extern u8 TIM5CH1_CAPTURE_STA; //输入捕获状态
extern u16 TIM5CH1_CAPTURE_VAL; //输入捕获值
//LED状态设置函数
void led_set(u8 sta)
{
LED1=sta;
}
//函数参数调用测试函数
void test_fun(void(*ledset)(u8),u8 sta)
{
ledset(sta);
}
void set_ara(u16 syear,u8 smon,u8 sday,u8 hour,u8 min,u8 sec){
RTC_Alarm_Set(syear,smon,sday,hour,min,sec);
}
void Show_Temp(){
short temp=Get_Temprate(); //得到温度值
if(temp<0)
{
temp=-temp;
LCD_ShowString(60+10*8,230,16,16,16,"-"); //显示负号
}else LCD_ShowString(60+10*8,230,16,16,16," "); //无符号
LCD_ShowxNum(60+11*8,230,temp/100,2,16,0); //显示整数部分
LCD_ShowxNum(60+14*8,230,temp%100,2,16, 0X80); //显示小数部分
}
int main(void)
{
u8 t=0;
delay_init(); //延时函数初始化
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置中断优先级分组为组2：2位抢占优先级，2位响应优先级
uart_init(115200); //串口初始化为115200
LED_Init(); //LED端口初始化
LCD_Init();
usmart_dev.init(SystemCoreClock/1000000); //初始化USMART
RTC_Init(); //RTC初始化
WKUP_Init(); //待机唤醒初始化
Adc_Init(); //ADC初始化
u16 adcx;
float temp;
T_Adc_Init();
POINT_COLOR=RED;//设置字体为红色
LCD_ShowString(60,50,200,16,16,"Elite STM32");
LCD_ShowString(60,70,200,16,16,"ADC TEST");
LCD_ShowString(60,90,200,16,16,"ATOM@ALIENTEK");
LCD_ShowString(60,110,200,16,16,"2022/1/18");
//显示时间
POINT_COLOR=BLUE;//设置字体为蓝色
LCD_ShowString(60,130,200,16,16," - - ");
LCD_ShowString(60,162,200,16,16," : : ");
LCD_ShowString(60,192,300,16,16,"ADC getVAL: ");
LCD_ShowString(60,212,300,16,16,"ADC ConVOL:00.0000V");
LCD_ShowString(60,230,300,16,16,"TEMPERATE: 00.00C");
LED1=0;
while(1)
{
adcx=0;
if(t!=calendar.sec)
{
t=calendar.sec;
LCD_ShowNum(60,130,calendar.w_year,4,16);
LCD_ShowNum(100,130,calendar.w_month,2,16);
LCD_ShowNum(124,130,calendar.w_date,2,16);
switch(calendar.week)
{
case 0:
LCD_ShowString(60,148,200,16,16,"Sunday ");
break;
case 1:
LCD_ShowString(60,148,200,16,16,"Monday ");
break;
case 2:
LCD_ShowString(60,148,200,16,16,"Tuesday ");
break;
case 3:
LCD_ShowString(60,148,200,16,16,"Wednesday");
break;
case 4:
LCD_ShowString(60,148,200,16,16,"Thursday ");
break;
case 5:
LCD_ShowString(60,148,200,16,16,"Friday ");
break;
case 6:
LCD_ShowString(60,148,200,16,16,"Saturday ");
break;
}
LCD_ShowNum(60,162,calendar.hour,2,16);
LCD_ShowNum(84,162,calendar.min,2,16);
LCD_ShowNum(108,162,calendar.sec,2,16);
LED0=!LED0;
}
adcx=Get_Adc_Average(ADC_Channel_1,10);
LCD_ShowxNum(148,192,adcx,4,16,0);//显示ADC的值
temp=(float)adcx*(3.3/4096);
adcx=temp;
LCD_ShowxNum(148,212,adcx,1,16,0);//显示电压值
temp-=adcx;
temp*=1000;
LCD_ShowxNum(172,212,temp,3,16,0X80);
delay_ms(10);
Show_Temp() ;
};
}