STM32C8T6生成控制SHT30的代码

以下是使用STM32C8T6控制SHT30的示例代码：

#include "stm32f1xx_hal.h"
#include "sht30.h"

I2C_HandleTypeDef hi2c1;

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);

int main(void)
{
  HAL_Init();
  SystemClock_Config();
  MX_GPIO_Init();
  MX_I2C1_Init();
  SHT30_Init(&hi2c1);
  
  float temperature, humidity;
  
  while (1)
  {
    SHT30_Read(&temperature, &humidity);
    // 处理温度和湿度数据
  }
}

void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = 16;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  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();
  }
  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}

static void MX_I2C1_Init(void)
{
  hi2c1.Instance = I2C1;
  hi2c1.Init.ClockSpeed = 100000;
  hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
  hi2c1.Init.OwnAddress1 = 0;
  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c1.Init.OwnAddress2 = 0;
  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
  {
    Error_Handler();
  }
}

static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  __HAL_RCC_GPIOB_CLK_ENABLE();
  GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}

void SHT30_Init(I2C_HandleTypeDef *hi2c)
{
  uint8_t buf[2];
  buf[0] = 0x21; // Soft reset
  buf[1] = 0x30;
  HAL_I2C_Master_Transmit(hi2c, SHT30_I2C_ADDRESS, buf, 2, 1000);
  HAL_Delay(10);
}

void SHT30_Read(float *temperature, float *humidity)
{
  uint8_t buf[6];
  float temp, hum;
  buf[0] = 0x2C; // High repeatability, no clock stretching
  buf[1] = 0x06;
  HAL_I2C_Master_Transmit(&hi2c1, SHT30_I2C_ADDRESS, buf, 2, 1000);
  HAL_Delay(20);
  HAL_I2C_Master_Receive(&hi2c1, SHT30_I2C_ADDRESS, buf, 6, 1000);
  uint16_t st = buf[0] << 8 | buf[1];
  uint16_t srh = buf[3] << 8 | buf[4];
  temp = -45.0f + 175.0f * (float)st / 65535.0f;
  hum = 100.0f * (float)srh / 65535.0f;
  *temperature = temp;
  *humidity = hum;
}

其中，`SHT30_Init`函数用于初始化SHT30传感器，执行软件复位操作；`SHT30_Read`函数用于读取温度和湿度数据。

注意修改I2C总线的初始化代码，确保与你的硬件连接一致。