/** ****************************************************************** * @file main.c * @author fire * @version V1.0 * @date 2019-xx-xx * @brief LTDC—液晶显示英文 ****************************************************************** * @attention * * 实验平台:野火 STM32H750 开发板 * 论坛 :http://www.firebbs.cn * 淘宝 :http://firestm32.taobao.com * ****************************************************************** */ #include "stm32h7xx.h" #include "main.h" #include "./led/bsp_led.h" #include "./usart/bsp_debug_usart.h" #include "./sdram/bsp_sdram.h" #include "./lcd/bsp_lcd.h" #include "./touch/bsp_touch_gtxx.h" #include "./mpu/bsp_mpu.h" #include "string.h" void Delay(__IO uint32_t nCount); void LCD_Test(void); /** * @brief 主函数 * @param 无 * @retval 无 */ int main(void) { /* 系统时钟初始化成480MHz */ SystemClock_Config(); /* 配置 MPU */ Board_MPU_Config(0, MPU_Normal_WT, 0xD0000000, MPU_32MB); Board_MPU_Config(1, MPU_Normal_WT, 0x24000000, MPU_512KB); SCB_EnableICache(); // 使能指令 Cache SCB_EnableDCache(); // 使能数据 Cache /* LED 端口初始化 */ LED_GPIO_Config(); /* 配置串口1为：115200 8-N-1 */ DEBUG_USART_Config(); printf("\r\n 欢迎使用野火 STM32 H750 开发板。\r\n"); printf("\r\n野火 STM32H750 LTDC液晶显示中文测试例程\r\n"); /* 必须先初始化触摸屏, 读取触摸芯片ID以判断不同尺寸类型的屏幕 */ GTP_Init_ReadID(); printf("\r\n提示：\r\n" "如果是4.3寸/5寸的RGB屏幕，使用的触摸芯片可能是GT1151QM。\r\n" "如果触摸或显示异常，请确认使用的屏幕触摸芯片型号，" "在“bsp_i2c_touch.h”文件修改宏定义 LCD_TOUCH_IC_GT1151QM。\r\n\r\n"); /* LCD 端口初始化 */ LCD_Init(); /* LCD 第一层初始化 */ LCD_LayerInit(0, LCD_FB_START_ADDRESS,ARGB8888); /* LCD 第二层初始化 */ LCD_LayerInit(1, LCD_FB_START_ADDRESS+(LCD_GetXSize()*LCD_GetYSize()*4),ARGB8888); /* 使能LCD，包括开背光 */ LCD_DisplayOn(); /* 选择LCD第一层 */ LCD_SelectLayer(0); /* 第一层清屏，显示全黑 */ LCD_Clear(LCD_COLOR_BLACK); /* 选择LCD第二层 */ LCD_SelectLayer(1); /* 第二层清屏，显示全黑 */ LCD_Clear(LCD_COLOR_TRANSPARENT); /*选择字体*/ LCD_SetFont(&LCD_DEFAULT_FONT); /* 配置第一和第二层的透明度,最小值为0，最大值为255*/ LCD_SetTransparency(0, 255); LCD_SetTransparency(1, 0); /*蓝灯亮*/ LED_BLUE; while(1) { LCD_Test(); } } /*用于测试各种液晶的函数*/ void LCD_Test(void) { /*演示显示变量*/ static uint8_t testCNT = 0; char dispBuff[100]; /* 选择LCD第一层 */ LCD_SelectLayer(0); /* 清屏，显示全黑 */ LCD_Clear(LCD_COLOR_BLACK); /*设置字体颜色及字体的背景颜色(此处的背景不是指LCD的背景层！注意区分)*/ LCD_SetColors(LCD_COLOR_WHITE,LCD_COLOR_BLACK); LCD_DisplayStringLine_EN_CH(1,(uint8_t* )"(野火5.0英寸液晶屏参数)"); LCD_DisplayStringLine_EN_CH(2,(uint8_t* )"分辨率:800x480 像素"); LCD_DisplayStringLine_EN_CH(3,(uint8_t* )"触摸屏:5点电容触摸屏"); LCD_DisplayStringLine_EN_CH(4,(uint8_t* )"使用STM32-LTDC直接驱动,无需外部液晶驱动器"); LCD_DisplayStringLine_EN_CH(5,(uint8_t* )"支持RGB888/565,24位数据总线"); LCD_DisplayStringLine_EN_CH(6,(uint8_t* )"触摸屏使用IIC总线驱动"); testCNT++; /*使用c标准库把变量转化成字符串*/ sprintf(dispBuff,"显示变量例子: testCount = %d ",testCNT); LCD_ClearLine(7); /*设置字体颜色及字体的背景颜色(此处的背景不是指LCD的背景层！注意区分)*/ LCD_SetColors(LCD_COLOR_WHITE,LCD_COLOR_BLACK); /*然后显示该字符串即可，其它变量也是这样处理*/ LCD_DisplayStringLine_EN_CH(7,(uint8_t* )dispBuff); /* 画直线 */ LCD_SetTextColor(LCD_COLOR_BLUE); LCD_ClearLine(8); LCD_DisplayStringLine_EN_CH(8,(uint8_t* )"画线:"); LCD_SetColors(LCD_COLOR_RED,LCD_COLOR_BLACK); LCD_DrawLine(50,250,750,250); LCD_DrawLine(50,300,750,300); LCD_SetColors(LCD_COLOR_GREEN,LCD_COLOR_BLACK); LCD_DrawLine(300,250,400,400); LCD_DrawLine(600,250,600,400); Delay(0x1FFFFFF); LCD_SetColors(LCD_COLOR_BLACK,LCD_COLOR_BLACK); LCD_FillRect(0,200,LCD_PIXEL_WIDTH,LCD_PIXEL_HEIGHT-200); /*画矩形*/ LCD_SetTextColor(LCD_COLOR_BLUE); LCD_ClearLine(8); LCD_DisplayStringLine_EN_CH(8,(uint8_t* )"画矩形:"); LCD_SetColors(LCD_COLOR_RED,LCD_COLOR_BLACK); LCD_DrawRect(200,250,200,100); LCD_SetColors(LCD_COLOR_GREEN,LCD_COLOR_BLACK); LCD_DrawRect(350,250,200,50); LCD_SetColors(LCD_COLOR_BLUE,LCD_COLOR_BLACK); LCD_DrawRect(200,350,50,200); Delay(0x1FFFFFF); LCD_SetColors(LCD_COLOR_BLACK,LCD_COLOR_BLACK); LCD_FillRect(0,200,LCD_PIXEL_WIDTH,LCD_PIXEL_HEIGHT-200); /*填充矩形*/ LCD_SetTextColor(LCD_COLOR_BLUE); LCD_ClearLine(8); LCD_DisplayStringLine_EN_CH(8,(uint8_t* )"填充矩形:"); LCD_SetColors(LCD_COLOR_RED,LCD_COLOR_BLACK); LCD_FillRect(200,250,200,100); LCD_SetColors(LCD_COLOR_GREEN,LCD_COLOR_BLACK); LCD_FillRect(350,250,200,50); LCD_SetColors(LCD_COLOR_BLUE,LCD_COLOR_BLACK); LCD_FillRect(200,350,50,200); Delay(0x1FFFFFF); LCD_SetColors(LCD_COLOR_BLACK,LCD_COLOR_BLACK); LCD_FillRect(0,200,LCD_PIXEL_WIDTH,LCD_PIXEL_HEIGHT-200); /* 画圆 */ LCD_SetTextColor(LCD_COLOR_BLUE); LCD_ClearLine(8); LCD_DisplayStringLine_EN_CH(8,(uint8_t* )"画圆:"); LCD_SetColors(LCD_COLOR_RED,LCD_COLOR_RED); LCD_DrawCircle(200,350,50); LCD_SetColors(LCD_COLOR_GREEN,LCD_COLOR_GREEN); LCD_DrawCircle(350,350,75); Delay(0x1FFFFFF); LCD_SetColors(LCD_COLOR_BLACK,LCD_COLOR_BLACK); LCD_FillRect(0,200,LCD_PIXEL_WIDTH,LCD_PIXEL_HEIGHT-200); /*填充圆*/ LCD_SetTextColor(LCD_COLOR_BLUE); LCD_ClearLine(8); LCD_DisplayStringLine_EN_CH(8,(uint8_t* )"填充圆:"); LCD_SetColors(LCD_COLOR_RED,LCD_COLOR_BLACK); LCD_FillCircle(300,350,50); LCD_SetColors(LCD_COLOR_GREEN,LCD_COLOR_BLACK); LCD_FillCircle(450,350,75); Delay(0x1FFFFFF); LCD_SetColors(LCD_COLOR_BLACK,LCD_COLOR_BLACK); LCD_FillRect(0,200,LCD_PIXEL_WIDTH,LCD_PIXEL_HEIGHT-200); LCD_ClearLine(8); /*透明效果 前景层操作*/ LCD_SetTextColor(LCD_COLOR_BLUE); LCD_ClearLine(8); LCD_DisplayStringLine_EN_CH(8,(uint8_t* )"双层透明效果："); /*设置前景层不透明度*/ LCD_SetTransparency(1, 128); /* 选择LCD第一层 */ LCD_SelectLayer(1); /* 清屏，显示全黑 */ LCD_Clear(LCD_COLOR_BLACK); /*在前景画一个红色圆*/ LCD_SetColors(LCD_COLOR_RED,LCD_COLOR_TRANSPARENT); LCD_FillCircle(400,350,75); Delay(0x1FFFFFF); /*透明效果 背景层操作*/ /* 选择LCD背景层 */ LCD_SelectLayer(0); LCD_Clear(LCD_COLOR_BLACK); /*设置前景层不透明*/ LCD_SetTransparency(1, 0); /*在背景画一个绿色圆*/ LCD_SetColors(LCD_COLOR_GREEN,LCD_COLOR_BLACK); LCD_FillCircle(450,350,75); /*在背景画一个蓝色圆*/ LCD_SetColors(LCD_COLOR_BLUE,LCD_COLOR_BLACK); LCD_FillCircle(350,350,75); Delay(0x1FFFFFF); LCD_SetColors(LCD_COLOR_BLACK,LCD_COLOR_BLACK); LCD_FillRect(0,200,LCD_PIXEL_WIDTH,LCD_PIXEL_HEIGHT-200); } /** * @brief System Clock 配置 * system Clock 配置如下: * System Clock source = PLL (HSE) * SYSCLK(Hz) = 480000000 (CPU Clock) * HCLK(Hz) = 240000000 (AXI and AHBs Clock) * AHB Prescaler = 2 * D1 APB3 Prescaler = 2 (APB3 Clock 120MHz) * D2 APB1 Prescaler = 2 (APB1 Clock 120MHz) * D2 APB2 Prescaler = 2 (APB2 Clock 120MHz) * D3 APB4 Prescaler = 2 (APB4 Clock 120MHz) * HSE Frequency(Hz) = 25000000 * PLL_M = 5 * PLL_N = 192 * PLL_P = 2 * PLL_Q = 4 * PLL_R = 2 * VDD(V) = 3.3 * Flash Latency(WS) = 4 * @param None * @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; /** 启用电源配置更新 */ HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY); /** 配置主内稳压器输出电压 */ __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0); while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {} /* 启用HSE振荡器并使用HSE作为源激活PLL */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.HSIState = RCC_HSI_OFF; RCC_OscInitStruct.CSIState = RCC_CSI_OFF; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 5; RCC_OscInitStruct.PLL.PLLN = 192; RCC_OscInitStruct.PLL.PLLP = 2; RCC_OscInitStruct.PLL.PLLR = 2; RCC_OscInitStruct.PLL.PLLQ = 4; RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE; RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2; if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { while(1) { ; } } /* 选择PLL作为系统时钟源并配置总线时钟分频器 */ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | \ RCC_CLOCKTYPE_HCLK | \ RCC_CLOCKTYPE_D1PCLK1 | \ RCC_CLOCKTYPE_PCLK1 | \ RCC_CLOCKTYPE_PCLK2 | \ RCC_CLOCKTYPE_D3PCLK1); RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2; RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2; RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2; RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2; RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2; if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK) { while(1) { ; } } } void Delay(__IO uint32_t nCount) //简单的延时函数 { for(; nCount != 0; nCount--); } /****************************END OF FILE***************************/