keil5做温度传感器代码
时间: 2023-12-03 09:45:07 浏览: 112
下面是一个基于Keil5的温度传感器代码示例:
```c
#include <stdio.h>
#include <stdint.h>
#include "stm32f4xx.h"
#define ADC1_DR_ADDRESS ((uint32_t)0x4001204C)
float temperature = 0.0f;
void ADC_Configuration(void);
void ADC1_IRQHandler(void);
int main(void)
{
ADC_Configuration();
while(1)
{
printf("Temperature: %.2f\n", temperature);
}
}
void ADC_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
ADC_InitTypeDef ADC_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
// Enable GPIOA clock
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
// Configure ADC1_3 pin as analog input
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// Enable ADC1 clock
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
// ADC Common Init
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
// ADC1 Init
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 1;
ADC_Init(ADC1, &ADC_InitStructure);
// Configure ADC1 channel3 interrupt
NVIC_InitStructure.NVIC_IRQChannel = ADC_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// Enable ADC1 channel3 interrupt
ADC_ITConfig(ADC1, ADC_IT_EOC, ENABLE);
// Enable ADC1
ADC_Cmd(ADC1, ENABLE);
// Start ADC1 Software Conversion
ADC_SoftwareStartConv(ADC1);
}
void ADC1_IRQHandler(void)
{
if(ADC_GetITStatus(ADC1, ADC_IT_EOC) != RESET)
{
// Calculate temperature
uint16_t adc_value = ADC_GetConversionValue(ADC1);
temperature = ((3.3f * adc_value / 4096.0f) - 0.76f) / 0.0025f + 25.0f;
// Clear ADC1 EOC pending interrupt bit
ADC_ClearITPendingBit(ADC1, ADC_IT_EOC);
}
}
```
这个代码使用了STM32F4系列的单片机,采用了ADC模块来获取温度传感器的输出,并通过串口将温度值打印出来。你需要根据自己的硬件平台和具体传感器的接口来修改代码。
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