基于ESP32单片机的小型气象站.zip

#include "LCD.h" #include "main.h" #include "driver/spi_master.h" #include "driver/gpio.h" extern spi_device_handle_t lcd_spi; // 初始化LCD屏幕的GPIO static void LCD_gpio_init(void) { gpio_config_t gpio_configStruct = { /** * PIN32: LED, PIN33: CS, PIN34: DC, PIN35: RESET */ .pin_bit_mask = GPIO_SEL_32 | GPIO_SEL_33 | GPIO_SEL_25 | GPIO_SEL_26, .mode = GPIO_MODE_OUTPUT, // 输出 .pull_up_en = 1 // 上拉 }; gpio_config(&gpio_configStruct); } // 初始化LCD屏幕的SPI接口 static void LCD_spi_init(void) { spi_bus_config_t spi_busConfig = { .miso_io_num = LCD_MISO_PIN, .mosi_io_num = LCD_MOSI_PIN, .sclk_io_num = LCD_SCLK_PIN, .quadwp_io_num = -1, .quadhd_io_num = -1 }; spi_device_interface_config_t spi_deviceConfig = { .clock_speed_hz = 32000000, // 屏幕的时钟频率是32 MHz .mode = 0, .queue_size = 7 // 队列中最多有七个传输 }; spi_bus_initialize(HSPI_HOST, &spi_busConfig, 0); // 不使能DMA spi_bus_add_device(HSPI_HOST, &spi_deviceConfig, &lcd_spi); } // 写LCD寄存器地址 static void LCD_WR_REG(uint8_t data) { spi_transaction_t t = { .length = 8, .tx_buffer = &data, .user = (void*)0 }; gpio_set_level(LCD_CS_PIN, 0); gpio_set_level(LCD_DC_PIN, 0); // DC为低时写LCD寄存器地址 spi_device_polling_transmit(lcd_spi, &t); // SPI传输 gpio_set_level(LCD_CS_PIN, 1); } // 写LCD寄存器数据 static void LCD_WR_DATA(uint8_t data) { spi_transaction_t t = { .length = 8, .tx_buffer = &data, .user = (void*)0 }; gpio_set_level(LCD_CS_PIN, 0); gpio_set_level(LCD_DC_PIN, 1); // DC为高时写LCD寄存器数据 spi_device_polling_transmit(lcd_spi, &t); // SPI传输 gpio_set_level(LCD_CS_PIN, 1); } // 写16位数据 void Lcd_WriteData_16Bit(u16 data) { u8 byte = data >> 8; spi_transaction_t t = { .length = 8, .tx_buffer = &byte, .user = (void*)0 }; gpio_set_level(LCD_CS_PIN, 0); gpio_set_level(LCD_DC_PIN, 1); // DC为高时写LCDd寄存器数据 spi_device_polling_transmit(lcd_spi, &t); // SPI传输 byte = data; spi_device_polling_transmit(lcd_spi, &t); gpio_set_level(LCD_CS_PIN, 1); } // 向LCD寄存器内写入数据 static void LCD_WriteReg(u8 LCD_Reg, u16 LCD_RegValue) { LCD_WR_REG(LCD_Reg); LCD_WR_DATA(LCD_RegValue); } // 硬复位 static void LCD_RESET(void) { gpio_set_level(LCD_RESET_PIN, 0); vTaskDelay(100/portTICK_PERIOD_MS); gpio_set_level(LCD_RESET_PIN, 1); vTaskDelay(50/portTICK_PERIOD_MS); } // 准备写入GRAM static void LCD_WriteRAM_Prepare(void) { LCD_WR_REG(WRAM_CMD); } // 清屏 void LCD_Clear(u16 Color) { unsigned int i; LCD_SetWindows(0,0,LCD_X-1,LCD_Y-1); gpio_set_level(LCD_CS_PIN, 0); gpio_set_level(LCD_DC_PIN, 1); for(i=0;i<LCD_Y*LCD_X;i++) { Lcd_WriteData_16Bit(Color); } gpio_set_level(LCD_CS_PIN, 1); LCD_SetWindows(0, 0, LCD_X-1, LCD_Y-1); } // 硬件初始化 static void LCD_hw_init(void) { LCD_gpio_init(); LCD_spi_init(); } // 设置窗口位置 void LCD_SetWindows(u16 xStar, u16 yStar,u16 xEnd,u16 yEnd) { LCD_WR_REG(SET_X_CMD); LCD_WR_DATA(xStar>>8); LCD_WR_DATA(0x00FF&xStar); LCD_WR_DATA(xEnd>>8); LCD_WR_DATA(0x00FF&xEnd); LCD_WR_REG(SET_Y_CMD); LCD_WR_DATA(yStar>>8); LCD_WR_DATA(0x00FF&yStar); LCD_WR_DATA(yEnd>>8); LCD_WR_DATA(0x00FF&yEnd); LCD_WriteRAM_Prepare(); //开始写入GRAM } // 设置光标位置 void LCD_SetCursor(u16 Xpos, u16 Ypos) { LCD_SetWindows(Xpos,Ypos,Xpos,Ypos); } void LCD_Init(void) { LCD_hw_init(); LCD_RESET(); //LCD 复位 //*************2.8inch ILI9341初始化**********// LCD_WR_REG(0xCF); LCD_WR_DATA(0x00); LCD_WR_DATA(0xC9); //C1 LCD_WR_DATA(0X30); LCD_WR_REG(0xED); LCD_WR_DATA(0x64); LCD_WR_DATA(0x03); LCD_WR_DATA(0X12); LCD_WR_DATA(0X81); LCD_WR_REG(0xE8); LCD_WR_DATA(0x85); LCD_WR_DATA(0x10); LCD_WR_DATA(0x7A); LCD_WR_REG(0xCB); LCD_WR_DATA(0x39); LCD_WR_DATA(0x2C); LCD_WR_DATA(0x00); LCD_WR_DATA(0x34); LCD_WR_DATA(0x02); LCD_WR_REG(0xF7); LCD_WR_DATA(0x20); LCD_WR_REG(0xEA); LCD_WR_DATA(0x00); LCD_WR_DATA(0x00); LCD_WR_REG(0xC0); //Power control LCD_WR_DATA(0x1B); //VRH[5:0] LCD_WR_REG(0xC1); //Power control LCD_WR_DATA(0x00); //SAP[2:0];BT[3:0] 01 LCD_WR_REG(0xC5); //VCM control LCD_WR_DATA(0x30); //3F LCD_WR_DATA(0x30); //3C LCD_WR_REG(0xC7); //VCM control2 LCD_WR_DATA(0XB7); LCD_WR_REG(0x36); // Memory Access Control LCD_WR_DATA(0x08); LCD_WR_REG(0x3A); LCD_WR_DATA(0x55); LCD_WR_REG(0xB1); LCD_WR_DATA(0x00); LCD_WR_DATA(0x1A); LCD_WR_REG(0xB6); // Display Function Control LCD_WR_DATA(0x0A); LCD_WR_DATA(0xA2); LCD_WR_REG(0xF2); // 3Gamma Function Disable LCD_WR_DATA(0x00); LCD_WR_REG(0x26); //Gamma curve selected LCD_WR_DATA(0x01); LCD_WR_REG(0xE0); //Set Gamma LCD_WR_DATA(0x0F); LCD_WR_DATA(0x2A); LCD_WR_DATA(0x28); LCD_WR_DATA(0x08); LCD_WR_DATA(0x0E); LCD_WR_DATA(0x08); LCD_WR_DATA(0x54); LCD_WR_DATA(0XA9); LCD_WR_DATA(0x43); LCD_WR_DATA(0x0A); LCD_WR_DATA(0x0F); LCD_WR_DATA(0x00); LCD_WR_DATA(0x00); LCD_WR_DATA(0x00); LCD_WR_DATA(0x00); LCD_WR_REG(0XE1); //Set Gamma LCD_WR_DATA(0x00); LCD_WR_DATA(0x15); LCD_WR_DATA(0x17); LCD_WR_DATA(0x07); LCD_WR_DATA(0x11); LCD_WR_DATA(0x06); LCD_WR_DATA(0x2B); LCD_WR_DATA(0x56); LCD_WR_DATA(0x3C); LCD_WR_DATA(0x05); LCD_WR_DATA(0x10); LCD_WR_DATA(0x0F); LCD_WR_DATA(0x3F); LCD_WR_DATA(0x3F); LCD_WR_DATA(0x0F); LCD_WR_REG(0x2B); LCD_WR_DATA(0x00); LCD_WR_DATA(0x00); LCD_WR_DATA(0x01); LCD_WR_DATA(0x3f); LCD_WR_REG(0x2A); LCD_WR_DATA(0x00); LCD_WR_DATA(0x00); LCD_WR_DATA(0x00); LCD_WR_DATA(0xef); LCD_WR_REG(0x11); //Exit Sleep vTaskDelay(120/portTICK_PERIOD_MS); LCD_WR_REG(0x29); //display on LCD_WriteReg(0x36,(1<<3)|(0<<7)|(1<<6)|(1<<5));//BGR==1,MY==1,MX==0,MV==1 gpio_set_level(LCD_LED_PIN, 1); // LCD_Clear(BLACK);//清全屏 }