请给出用stm32c8t6驱动mq135初始化代码并采集信息打印到串口

好的，下面是基本的初始化代码和数据采集代码：

#include "stm32f10x.h"
#include "stdio.h"

#define MQ135_PIN    GPIO_Pin_0
#define MQ135_PORT   GPIOA

ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;

void GPIO_Configuration(void)
{
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
    
    GPIO_InitStructure.GPIO_Pin = MQ135_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(MQ135_PORT, &GPIO_InitStructure);
}

void ADC_Configuration(void)
{
    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_239Cycles5);

    ADC_Cmd(ADC1, ENABLE);
    ADC_ResetCalibration(ADC1);
    while (ADC_GetResetCalibrationStatus(ADC1));
    ADC_StartCalibration(ADC1);
    while (ADC_GetCalibrationStatus(ADC1));
}

void USART_Configuration(void)
{
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);

    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_Tx;
    USART_Init(USART1, &USART_InitStructure);

    USART_Cmd(USART1, ENABLE);
}

int main(void)
{
    uint16_t adc_value;
    float rs_ro_ratio;
    float ppm_value;

    GPIO_Configuration();
    ADC_Configuration();
    USART_Configuration();

    while (1)
    {
        ADC_SoftwareStartConvCmd(ADC1, ENABLE);
        while (!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC));
        adc_value = ADC_GetConversionValue(ADC1);

        rs_ro_ratio = ((float)(4095 - adc_value) / adc_value);
        ppm_value = (pow(10, ((log10(rs_ro_ratio) - 1.683) / (-0.256)))));
        printf("PPM Value: %.2f\r\n", ppm_value);

        delay_ms(1000);
    }
}

这个程序使用了ADC1来读取MQ135传感器的模拟输出，并计算出PPM值。最后，将结果通过USART1发送到串口。请注意，这里的计算公式是根据MQ135传感器的数据手册提供的。你需要根据实际情况进行调整。