STM32C8T6利用AD8232和st7789即做到液晶屏显示心电波形又做到显示心率的详细程序

以下是液晶屏显示心电波形和心率的STM32程序，使用AD8232心电模块和ST7789液晶屏。请注意，此程序仅供参考，需要根据具体硬件和需求进行修改。

#include "main.h"
#include "spi.h"
#include "gpio.h"
#include "tim.h"

#include "AD8232.h"
#include "ST7789.h"

#define ADC_BUF_LEN 1000
#define HEART_RATE_BUF_LEN 10

volatile uint16_t adc_buf[ADC_BUF_LEN];
volatile uint16_t adc_buf_pos = 0;
volatile uint8_t adc_buf_full = 0;

volatile uint16_t heart_rate_buf[HEART_RATE_BUF_LEN];
volatile uint8_t heart_rate_buf_pos = 0;

void SystemClock_Config(void);

int main(void)
{
  HAL_Init();
  SystemClock_Config();

  MX_GPIO_Init();
  MX_SPI1_Init();
  MX_TIM3_Init();

  AD8232_Init();
  ST7789_Init();

  HAL_TIM_Base_Start_IT(&htim3);

  while (1)
  {
    if (adc_buf_full)
    {
      // Draw ECG waveform
      ST7789_DrawECGWaveform(adc_buf, ADC_BUF_LEN, 0, 0);

      // Calculate heart rate
      uint16_t heart_rate = AD8232_CalculateHeartRate(adc_buf, ADC_BUF_LEN);
      heart_rate_buf[heart_rate_buf_pos] = heart_rate;
      heart_rate_buf_pos = (heart_rate_buf_pos + 1) % HEART_RATE_BUF_LEN;

      // Draw heart rate
      ST7789_DrawString("Heart Rate:", 0, 160);
      uint16_t avg_heart_rate = 0;
      for (int i = 0; i < HEART_RATE_BUF_LEN; i++)
      {
        avg_heart_rate += heart_rate_buf[i];
      }
      avg_heart_rate /= HEART_RATE_BUF_LEN;
      char heart_rate_str[5];
      sprintf(heart_rate_str, "%d", avg_heart_rate);
      ST7789_DrawString(heart_rate_str, 120, 160);

      adc_buf_full = 0;
    }
  }
}

void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef *hadc)
{
  adc_buf[adc_buf_pos] = HAL_ADC_GetValue(hadc);
  adc_buf_pos = (adc_buf_pos + 1) % ADC_BUF_LEN;
  if (adc_buf_pos == 0)
  {
    adc_buf_full = 1;
  }
}

void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
  if (htim->Instance == TIM3)
  {
    AD8232_Sample();
  }
}

void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};

  /**Configure the main internal regulator output voltage 
  */
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  /**Configure LSE Drive Capability 
  */
  HAL_PWR_EnableBkUpAccess();
  __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_HIGH);
  /**Configure the RTC clock source 
  */
  __HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_LSE);
  /**Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSE;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.LSEState = RCC_LSE_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /**Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
  {
    Error_Handler();
  }
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC;
  PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
    Error_Handler();
  }
  /**Configure the Systick interrupt time 
  */
  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
  /**Configure the Systick 
  */
  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
  /* SysTick_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}

在ST7789.h头文件中，定义了以下ST7789液晶屏相关的函数：

void ST7789_Init(void);
void ST7789_DrawPixel(uint16_t x, uint16_t y, uint16_t color);
void ST7789_DrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color);
void ST7789_DrawRectangle(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color);
void ST7789_DrawFilledRectangle(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color);
void ST7789_DrawCircle(uint16_t x, uint16_t y, uint16_t r, uint16_t color);
void ST7789_DrawFilledCircle(uint16_t x, uint16_t y, uint16_t r, uint16_t color);
void ST7789_DrawString(char *str, uint16_t x, uint16_t y);
void ST7789_DrawECGWaveform(uint16_t *buf, uint16_t buf_len, uint16_t x, uint16_t y);

在AD8232.h头文件中，定义了以下AD8232心电模块相关的函数：

void AD8232_Init(void);
void AD8232_Sample(void);
uint16_t AD8232_CalculateHeartRate(uint16_t *buf, uint16_t buf_len);