STM32F103C8T6单片机读取和显示数据

首先，你需要连接相应的传感器或其他设备到STM32F103C8T6单片机的GPIO引脚上。然后，你需要编写代码从传感器读取数据，并将其显示在适当的显示设备上。

以下是一个简单的示例代码，它使用ADC外设读取模拟传感器的数据，并将其显示在串口终端上：

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

#define ADC1_DR_Address    ((uint32_t)0x4001244C)

void RCC_Configuration(void)
{
  /* Enable GPIOA, GPIOC, ADC1 and USART1 clocks */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC |
                         RCC_APB2Periph_ADC1 | RCC_APB2Periph_USART1,
                         ENABLE);
}

void GPIO_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Configure USART1 Tx (PA.09) as alternate function push-pull */
  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);

  /* Configure USART1 Rx (PA.10) as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

  /* Configure PC.04 as analog input */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
}

void USART_Configuration(void)
{
  USART_InitTypeDef USART_InitStructure;

  /* USART1 configuration */
  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);

  /* Enable USART1 */
  USART_Cmd(USART1, ENABLE);
}

void ADC_Configuration(void)
{
  ADC_InitTypeDef ADC_InitStructure;

  /* ADC1 configuration */
  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
  ADC_InitStructure.ADC_ScanConvMode = DISABLE;
  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);

  /* ADC1 regular channel4 configuration */
  ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 1, ADC_SampleTime_55Cycles5);

  /* Enable ADC1 */
  ADC_Cmd(ADC1, ENABLE);

  /* ADC1 reset calibration */
  ADC_ResetCalibration(ADC1);

  /* Check the end of ADC1 reset calibration register */
  while(ADC_GetResetCalibrationStatus(ADC1));

  /* Start ADC1 calibration */
  ADC_StartCalibration(ADC1);

  /* Check the end of ADC1 calibration */
  while(ADC_GetCalibrationStatus(ADC1));
}

int main(void)
{
  uint16_t adc_value;
  char buffer[16];

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

  while(1)
  {
    /* Start ADC1 Software Conversion */
    ADC_SoftwareStartConvCmd(ADC1, ENABLE);

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

    /* Get ADC1 converted data */
    adc_value = ADC_GetConversionValue(ADC1);

    /* Convert ADC value to voltage */
    float voltage = ((float)adc_value / 4096) * 3.3;

    /* Format voltage value as string */
    sprintf(buffer, "%.2fV\r\n", voltage);

    /* Send voltage value to USART1 */
    USART_SendData(USART1, buffer);
    while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
  }
}

在上述代码中，我们使用了USART1外设将数据发送到串口终端，并使用ADC1外设读取PC.04引脚上连接的模拟传感器的数据。ADC1配置为单次转换模式，它将采样并转换PC.04引脚上的电压，并返回一个0到4095之间的数字值。我们将这个数字值转换成电压值，并将其格式化为一个字符串，然后将其发送到USART1外设。在每次循环中，我们将重复此过程以读取新的传感器数据。