stm32 adc温度采集代码

以下是基于STM32F4xx系列的ADC温度采集代码示例：

#include "stm32f4xx.h"
#include <stdio.h>

void ADC_Configuration(void);
void GPIO_Configuration(void);

int main(void)
{
    float temperature;
    char buffer[50];

    GPIO_Configuration();
    ADC_Configuration();

    while (1)
    {
        ADC_SoftwareStartConv(ADC1);
        while (!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC))
            ;
        temperature = (float)((1.43 - (ADC_GetConversionValue(ADC1) * 3.3 / 4096)) / 0.0043 + 25.0);
        sprintf(buffer, "Temperature: %.2f\r\n", temperature);
        printf(buffer);
    }
}

void ADC_Configuration(void)
{
    ADC_InitTypeDef ADC_InitStruct;
    ADC_CommonInitTypeDef ADC_CommonInitStruct;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);

    ADC_CommonInitStruct.ADC_Mode = ADC_Mode_Independent;
    ADC_CommonInitStruct.ADC_Prescaler = ADC_Prescaler_Div2;
    ADC_CommonInitStruct.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
    ADC_CommonInitStruct.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
    ADC_CommonInit(&ADC_CommonInitStruct);

    ADC_DeInit(ADC1);
    ADC_InitStruct.ADC_Resolution = ADC_Resolution_12b;
    ADC_InitStruct.ADC_ScanConvMode = DISABLE;
    ADC_InitStruct.ADC_ContinuousConvMode = DISABLE;
    ADC_InitStruct.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
    ADC_InitStruct.ADC_DataAlign = ADC_DataAlign_Right;
    ADC_InitStruct.ADC_NbrOfConversion = 1;
    ADC_Init(ADC1, &ADC_InitStruct);

    ADC_TempSensorVrefintCmd(ENABLE);

    ADC_Cmd(ADC1, ENABLE);
    ADC_RegularChannelConfig(ADC1, ADC_Channel_TempSensor, 1, ADC_SampleTime_480Cycles);

    ADC_SoftwareStartConv(ADC1);
}

void GPIO_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStruct;

    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);

    GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;
    GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
    GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
    GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
    GPIO_Init(GPIOA, &GPIO_InitStruct);

    GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_USART1);
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_USART1);
}

此代码使用了STM32F4xx系列的ADC和温度传感器，可用于读取当前芯片的温度。注意，由于ADC采集到的值是数字化的模拟信号，需要进行转换以获取正确的温度值。