#include "stm32f4xx_hal.h" #include "sht20.h" #include "tftlcd.h" #include "ds3231.h"给出这几个代码的头文件和C文件

### STM32F429 项目中与 SHT20、TFTLCD、DS3231 相关的头文件和 C 文件代码 以下是针对 STM32F429 微控制器实现 SHT20 温湿度传感器、TFTLCD 显示屏以及 DS3231 实时时钟模块的相关头文件和 C 文件代码示例。 #### 1. 头文件定义 ```c // sht20.h #ifndef __SHT20_H #define __SHT20_H #include "stm32f4xx_hal.h" #define SHT20_ADDR_WRITE 0x80 #define SHT20_ADDR_READ 0x81 void SHT20_Init(void); float SHT20_ReadTemperature(void); float SHT20_ReadHumidity(void); #endif /* __SHT20_H */ ``` ```c // tftlcd.h #ifndef __TFTLCD_H #define __TFTLCD_H #include "stm32f4xx_hal.h" #define LCD_WIDTH 800 #define LCD_HEIGHT 480 void TFTLCD_Init(void); void TFTLCD_ClearScreen(void); void TFTLCD_DrawString(uint16_t x, uint16_t y, char *str); void TFTLCD_DrawFloat(uint16_t x, uint16_t y, float value, uint8_t digits); void TFTLCD_Address_Set(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2); void LCD_WR_RS(uint8_t rs); #endif /* __TFTLCD_H */ ``` ```c // ds3231.h #ifndef __DS3231_H #define __DS3231_H #include "stm32f4xx_hal.h" #define DS3231_ADDR 0x68 void DS3231_Init(void); void DS3231_GetTime(uint8_t *hour, uint8_t *minute, uint8_t *second); #endif /* __DS3231_H */ ``` #### 2. C 文件实现 ```c // sht20.c #include "sht20.h" #include "stm32f4xx_hal.h" void SHT20_Init(void) { HAL_I2C_Mem_Write(&hi2c1, SHT20_ADDR_WRITE, 0xE6, 1, NULL, 0, 10); // 软件复位 HAL_Delay(150); // 等待初始化完成 } float SHT20_ReadTemperature(void) { uint8_t data[2]; HAL_I2C_Mem_Read(&hi2c1, SHT20_ADDR_READ, 0xF3, 1, data, 2, 100); float temp = (data[0] * 256 + data[1]) * 175.72 / 65536 - 46.85; return temp; } float SHT20_ReadHumidity(void) { uint8_t data[2]; HAL_I2C_Mem_Read(&hi2c1, SHT20_ADDR_READ, 0xF5, 1, data, 2, 100); float humidity = (data[0] * 256 + data[1]) * 125 / 65536 - 6; return humidity; } ``` ```c // tftlcd.c #include "tftlcd.h" #include "stm32f4xx_hal.h" void TFTLCD_Init(void) { // 初始化 SPI 接口 MX_SPI1_Init(); // 初始化 LCD 控制引脚 HAL_GPIO_WritePin(LCD_RST_GPIO_Port, LCD_RST_Pin, GPIO_PIN_RESET); HAL_Delay(100); HAL_GPIO_WritePin(LCD_RST_GPIO_Port, LCD_RST_Pin, GPIO_PIN_SET); HAL_Delay(100); // 发送初始化命令序列 // 示例：发送 ILI9341 初始化命令 // ... } void TFTLCD_ClearScreen(void) { uint16_t color = 0xFFFF; // 白色 uint16_t i, j; uint8_t data[2] = {color >> 8, color & 0xFF}; TFTLCD_Address_Set(0, 0, LCD_WIDTH - 1, LCD_HEIGHT - 1); LCD_WR_RS(1); for (i = 0; i < LCD_HEIGHT; i++) { for (j = 0; j < LCD_WIDTH; j++) { HAL_SPI_Transmit(&hspi1, data, 2, 100); } } } void TFTLCD_DrawString(uint16_t x, uint16_t y, char *str) { // 字符串绘制逻辑 // 示例：使用字体库逐字绘制字符串 // ... } void TFTLCD_DrawFloat(uint16_t x, uint16_t y, float value, uint8_t digits) { char buffer[20]; dtostrf(value, 1, digits, buffer); // 将浮点数转换为字符串 TFTLCD_DrawString(x, y, buffer); } void TFTLCD_Address_Set(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2) { uint8_t data[4]; data[0] = x1 >> 8; data[1] = x1 & 0xFF; data[2] = x2 >> 8; data[3] = x2 & 0xFF; LCD_WR_RS(0); HAL_SPI_Transmit(&hspi1, data, 4, 100); data[0] = y1 >> 8; data[1] = y1 & 0xFF; data[2] = y2 >> 8; data[3] = y2 & 0xFF; LCD_WR_RS(0); HAL_SPI_Transmit(&hspi1, data, 4, 100); } void LCD_WR_RS(uint8_t rs) { HAL_GPIO_WritePin(LCD_RS_GPIO_Port, LCD_RS_Pin, rs); } ``` ```c // ds3231.c #include "ds3231.h" #include "stm32f4xx_hal.h" void DS3231_Init(void) { // 写入控制寄存器，启用时钟输出 uint8_t ctrl_reg = 0x00; HAL_I2C_Mem_Write(&hi2c1, DS3231_ADDR, 0x0E, 1, &ctrl_reg, 1, 100); } void DS3231_GetTime(uint8_t *hour, uint8_t *minute, uint8_t *second) { uint8_t data[3]; HAL_I2C_Mem_Read(&hi2c1, DS3231_ADDR, 0x00, 1, data, 3, 100); *second = bcd_to_dec(data[0]); *minute = bcd_to_dec(data[1]); *hour = bcd_to_dec(data[2] & 0x3F); } uint8_t bcd_to_dec(uint8_t val) { return ((val / 16) * 10) + (val % 16); } ``` #### 3. 主程序实现 ```c #include "main.h" #include "sht20.h" #include "tftlcd.h" #include "ds3231.h" int main(void) { HAL_Init(); SystemClock_Config(); Hardware_Init(); while (1) { float temperature, humidity; uint8_t hour, minute, second; temperature = SHT20_ReadTemperature(); humidity = SHT20_ReadHumidity(); DS3231_GetTime(&hour, &minute, &second); TFTLCD_ClearScreen(); TFTLCD_DrawString(0, 0, "Temperature:"); TFTLCD_DrawFloat(80, 0, temperature, 1); TFTLCD_DrawString(0, 20, "Humidity:"); TFTLCD_DrawFloat(80, 20, humidity, 1); TFTLCD_DrawString(0, 40, "Time:"); char time_str[10]; sprintf(time_str, "%02d:%02d:%02d", hour, minute, second); TFTLCD_DrawString(50, 40, time_str); HAL_Delay(1000); } } ``` ###