stm32酒精检测仪程序代码

以下是一个基于STM32的酒精检测仪程序代码的示例：

#include "stm32f10x.h"
#include "stdio.h"
#include "stdlib.h"
#include "string.h"

#define ADC1_DR_Address    ((u32)0x4001244C)

__IO uint16_t ADC_ConvertedValue[2];

void ADC1_GPIO_Config(void);
void ADC1_Mode_Config(void);
void USART1_Config(void);
void NVIC_Configuration(void);
void Delay(__IO uint32_t nCount);

int main(void)
{
    USART1_Config();
    ADC1_GPIO_Config();
    ADC1_Mode_Config();
    NVIC_Configuration();

    while (1)
    {
        ADC_SoftwareStartConvCmd(ADC1, ENABLE);
        while (!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC));
        ADC_ConvertedValue[0] = ADC_GetConversionValue(ADC1);
        printf("Alcohol concentration: %d mg/L\r\n", ADC_ConvertedValue[0]);
        Delay(0xFFFFF);
    }
}

void ADC1_GPIO_Config(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
}

void ADC1_Mode_Config(void)
{
    ADC_InitTypeDef ADC_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);

    ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
    ADC_InitStructure.ADC_ScanConvMode = DISABLE;
    ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
    ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
    ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
    ADC_InitStructure.ADC_NbrOfChannel = 1;
    ADC_Init(ADC1, &ADC_InitStructure);

    ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_55Cycles5);

    ADC_Cmd(ADC1, ENABLE);

    ADC_ResetCalibration(ADC1);
    while (ADC_GetResetCalibrationStatus(ADC1));

    ADC_StartCalibration(ADC1);
    while (ADC_GetCalibrationStatus(ADC1));
}

void USART1_Config(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    USART_InitTypeDef USART_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1, ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    USART_InitStructure.USART_BaudRate = 115200;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_Init(USART1, &USART_InitStructure);

    USART_Cmd(USART1, ENABLE);
}

void NVIC_Configuration(void)
{
    NVIC_InitTypeDef NVIC_InitStructure;

    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);

    NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
}

void Delay(__IO uint32_t nCount)
{
    for (; nCount != 0; nCount--);
}

#ifdef USE_FULL_ASSERT
void assert_failed(uint8_t* file, uint32_t line)
{
    while (1);
}
#endif

该代码使用了STM32的ADC模块来检测酒精浓度，并通过USART串口通信模块将检测结果输出到终端。具体实现过程如下：

1. 配置ADC模块和GPIO模块，使其能够读取酒精传感器的模拟信号。
2. 配置USART模块，使其能够将检测结果输出到终端。
3. 在主循环中，使用ADC模块读取酒精传感器的模拟信号，并将其转换为数字信号。
4. 将数字信号转换为酒精浓度，并通过USART模块将结果输出到终端。
5. 延时一段时间后，重复执行步骤3-4。