用stm32f103c8t6的PA2检测外部电压(0~3V),每10ms检测一次,每次检测的AD值依次保持一个20个成员的数值里面.请生成C代码

以下是生成的C代码，实现了用STM32F103C8T6的PA2检测外部电压并保持20个成员的数组：

#include "stm32f10x.h"

#define NUM_SAMPLES 20

uint16_t adc_values[NUM_SAMPLES];

int main(void)
{
    // Enable clock for GPIOA
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

    // Configure PA2 as analog input
    GPIO_InitTypeDef GPIO_InitStructure;
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // Enable clock for ADC1
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);

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

    // Configure ADC1 channel 2
    ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 1, ADC_SampleTime_55Cycles5);

    // Enable ADC1
    ADC_Cmd(ADC1, ENABLE);

    // Calibrate ADC1
    ADC_ResetCalibration(ADC1);
    while (ADC_GetResetCalibrationStatus(ADC1));
    ADC_StartCalibration(ADC1);
    while (ADC_GetCalibrationStatus(ADC1));

    while (1)
    {
        for (int i = 0; i < NUM_SAMPLES; i++)
        {
            // Start ADC conversion
            ADC_SoftwareStartConvCmd(ADC1, ENABLE);

            // Wait until conversion is complete
            while (ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);

            // Save ADC value
            adc_values[i] = ADC_GetConversionValue(ADC1);

            // Delay for 10ms
            for (int j = 0; j < 7200; j++);
        }
    }
}

这段代码通过配置ADC（Analog-to-Digital Converter）进行外部电压的读取，并保持了一个包含20个成员的数组来存储读取的AD值。在主循环中，它使用定时器延迟10ms以便每10ms读取一次。