/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
files (startup_stm32f429_439xx.s) before to branch to application main.
*/
/* Configure LCD : Configure 2 layers w/ Blending and CLUT loading for layer 1 */
LCD_Config();
/* Enable CLUT for Layer 1 */
LTDC_CLUTCmd(LTDC_Layer1, ENABLE);
/* Enable Layer 1 */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
/* Enable Layer 2 */
LTDC_LayerCmd(LTDC_Layer2, ENABLE);
/* Reload LTDC configuration */
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable The LCD */
LTDC_Cmd(ENABLE);
while (1)
{
}
}
void r3dfb_init(void)
{
LCD_Init();
LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 30;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = (R3DFB_PIXEL_WIDTH + 30 - 1);
LTDC_Layer_InitStruct.LTDC_VerticalStart = 4;
LTDC_Layer_InitStruct.LTDC_VerticalStop = (R3DFB_PIXEL_HEIGHT + 4 - 1);
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((R3DFB_PIXEL_WIDTH * 2) + 3);
LTDC_Layer_InitStruct.LTDC_CFBPitch = (R3DFB_PIXEL_WIDTH * 2);
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = R3DFB_PIXEL_HEIGHT;
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = r3dfb_front_buffer;
LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct);
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
LTDC_LayerCmd(LTDC_Layer2, DISABLE);
LTDC_ReloadConfig(LTDC_IMReload);
LTDC_Cmd(ENABLE);
}
static void LCD_RGB565LayerInit(void)
{
LTDC_LayerCmd(LTDC_Layer1, DISABLE);
/* Windowing configuration */
/* In this case all the active display area is used to display a picture then :
Horizontal start = horizontal synchronization + Horizontal back porch = 30
Horizontal stop = Horizontal start + window width -1 = 30 + 240 -1
Vertical start = vertical synchronization + vertical back porch = 4
Vertical stop = Vertical start + window height -1 = 4 + 320 -1 */
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 30;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = (LCD_PIXEL_WIDTH + 30 - 1);
LTDC_Layer_InitStruct.LTDC_VerticalStart = 4;
LTDC_Layer_InitStruct.LTDC_VerticalStop = (LCD_PIXEL_HEIGHT + 4 - 1);
/* Pixel Format configuration*/
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
/* Alpha constant (255 totally opaque) */
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
/* Default Color configuration (configure A,R,G,B component values) */
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_PAxCA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_PAxCA;
/* the length of one line of pixels in bytes + 3 then :
Line Lenth = Active width x number of bytes per pixel + 3
Active width = LCD_PIXEL_WIDTH
number of bytes per pixel = 2 (pixel_format : RGB565)
*/
LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((LCD_PIXEL_WIDTH * 2) + 3);
/* the pitch is the increment from the start of one line of pixels to the
start of the next line in bytes, then :
Pitch = Active high width x number of bytes per pixel */
LTDC_Layer_InitStruct.LTDC_CFBPitch = (ImageRGB888_width * 2);
/* Configure the number of lines */
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = LCD_PIXEL_HEIGHT;
/* Start Address configuration : the LCD Frame buffer is defined in Flash memory*/
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = (uint32_t)frameBuffer;
//LTDC_Layer_InitStruct.LTDC_CFBStartAdress = (uint32_t)ImageRGB565;
/* Initialize LTDC layer 1 */
LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct);
/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable foreground Layers */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_IMReload);
}
/*===========================================================================*/
static inline void init_board(GDisplay *g) {
g->board = 0;
/* Init LCD and LTCD. Enable layer1 only. */
LCD_Init();
LCD_LayerInit();
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
LTDC_LayerCmd(LTDC_Layer2, DISABLE);
LTDC_ReloadConfig(LTDC_IMReload);
LTDC_Cmd(ENABLE);
LCD_SetLayer(LCD_BACKGROUND_LAYER);
}
/*
* initialize both layers to full screen
*/
static void lcd_layer_fullscreen (void)
{
LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;
// background layer
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 30;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = LCD_MAX_X + 30 - 1;
LTDC_Layer_InitStruct.LTDC_VerticalStart = 4;
LTDC_Layer_InitStruct.LTDC_VerticalStop = LCD_MAX_Y + 4 - 1;
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 0xFF; // opaque
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
LTDC_Layer_InitStruct.LTDC_CFBLineLength = (LCD_MAX_X * 2) + 3;
LTDC_Layer_InitStruct.LTDC_CFBPitch = LCD_MAX_X * 2;
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = LCD_MAX_Y;
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
LTDC_LayerInit (LTDC_Layer1, <DC_Layer_InitStruct);
// foreground layer
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER + LCD_FRAME_SIZE;
LTDC_LayerInit (LTDC_Layer2, <DC_Layer_InitStruct);
LTDC_ReloadConfig (LTDC_IMReload);
LTDC_LayerCmd (LTDC_Layer1, ENABLE);
LTDC_LayerCmd (LTDC_Layer2, ENABLE);
LTDC_ReloadConfig (LTDC_IMReload);
LTDC_DitherCmd (DISABLE);
LTDC_Cmd (ENABLE);
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
files (startup_stm32f429_439xx.s) before to branch to application main.
*/
/* Configure LCD : Only one layer is used */
LCD_Config();
/* Enable Layer 1 */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
/* Reload configuration of Layer 1 */
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable The LCD */
LTDC_Cmd(ENABLE);
while (1)
{
}
}
static void DrawText(uint8_t* text)
{
/* Windowing configuration */
/* In this case all the active display area is used to display a picture then :
Horizontal start = horizontal synchronization + Horizontal back porch = 30
Horizontal stop = Horizontal start + window width -1 = 30 + 240 -1
Vertical start = vertical synchronization + vertical back porch = 4
Vertical stop = Vertical start + window height -1 = 4 + 320 -1 */
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 30;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = (LCD_PIXEL_WIDTH + 30 - 1);
LTDC_Layer_InitStruct.LTDC_VerticalStart = 4 + 10;
LTDC_Layer_InitStruct.LTDC_VerticalStop = (ImageSTLogo_height + 4 + 10 + LOGO_OFFSET_LINES - 1);
/* Pixel Format configuration*/
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
/* Alpha constant (255 totally opaque) */
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
/* Default Color configuration (configure A,R,G,B component values) */
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0; /* 0 = transparent */
/* the length of one line of pixels in bytes + 3 then :
Line Lenth = Active high width x number of bytes per pixel + 3
Active high width = LCD_PIXEL_WIDTH
number of bytes per pixel = 2 (pixel_format : RGB565)
*/
LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((LCD_PIXEL_WIDTH * 2) + 3);
/* the pitch is the increment from the start of one line of pixels to the
start of the next line in bytes, then :
Pitch = Active high width x number of bytes per pixel */
LTDC_Layer_InitStruct.LTDC_CFBPitch = (LCD_PIXEL_WIDTH * 2);
/* Configure the number of lines */
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = LCD_PIXEL_HEIGHT;
/* Configure Layer2 */
/* Start Address configuration : the LCD Frame buffer is defined on SDRAM w/ Offset */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER + BUFFER_OFFSET;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_PAxCA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_PAxCA;
/* Initialize LTDC layer 2 */
LTDC_LayerInit(LTDC_Layer2, <DC_Layer_InitStruct);
/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable foreground & background Layers */
LTDC_LayerCmd(LTDC_Layer2, ENABLE);
/* Set default font */
LCD_SetFont(&LCD_DEFAULT_FONT);
/* Set LCD foreground layer */
LCD_SetLayer(LCD_FOREGROUND_LAYER);
/* LCD display message */
LCD_Clear(LCD_COLOR_WHITE);
LCD_SetFont(&Font12x12);
LCD_SetTextColor(LCD_COLOR_RED);
LCD_SetBackColor(LCD_COLOR_WHITE);
LCD_DisplayStringLine(LCD_LINE_1,(uint8_t*)text);
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f429_439xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* User button will be used */
STM_EVAL_PBInit(BUTTON_USER, BUTTON_MODE_GPIO);
/* LCD Configuration */
LCD_Config();
/* Enable Layer1 */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
/* Reload configuration of Layer1 */
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable The LCD */
LTDC_Cmd(ENABLE);
while (1)
{
/* Wait for User push-button is pressed */
while (STM_EVAL_PBGetState(BUTTON_USER) != Bit_RESET)
{
}
/* Wait for User push-button is released */
while (STM_EVAL_PBGetState(BUTTON_USER) != Bit_SET)
{
}
if(ubPressedButton == PRESSED_1)
{
/* Set Color Keying to red (RGB = 0xFF0000) */
LCD_SetColorKeying(0xFF0000);
ubPressedButton = PRESSED_2;
}
else if(ubPressedButton == PRESSED_2)
{
/* Set Color Keying to blue (RGB = 0x0000FF) */
LCD_SetColorKeying(0xFF);
ubPressedButton = PRESSED_3;
}
else if(ubPressedButton == PRESSED_3)
{
/* Set Color Keying to green (RGB = 0x00FF00) */
LCD_SetColorKeying(0xFF00);
ubPressedButton = PRESSED_4;
}
else if(ubPressedButton == PRESSED_4)
{
/* Set Color Keying to blue and green (RGB = 0x00FFFF) */
LCD_SetColorKeying(0xFFFF);
ubPressedButton = PRESSED_5;
}
else if(ubPressedButton == PRESSED_5)
{
/* Set Color Keying to red and green (RGB = 0x00FFFF) */
LCD_SetColorKeying(0xFFFF00);
ubPressedButton = PRESSED_6;
}
else
{
/* Set Color Keying to blue and red (RGB = 0x00FFFF) */
LCD_SetColorKeying(0xFF00FF);
ubPressedButton = PRESSED_1;
}
}
}
void TM_ILI9341_InitLayers(void) {
LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;
/* Windowing configuration */
/* Horizontal start = horizontal synchronization + Horizontal back porch = 43
Vertical start = vertical synchronization + vertical back porch = 12
Horizontal stop = Horizontal start + LCD_PIXEL_WIDTH - 1
Vertical stop = Vertical start + LCD_PIXEL_HEIGHT - 1
*/
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 30;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = 269;
LTDC_Layer_InitStruct.LTDC_VerticalStart = 4;
LTDC_Layer_InitStruct.LTDC_VerticalStop = 323;
/* Pixel Format configuration*/
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
/* Alpha constant (255 totally opaque) */
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
/* Default Color configuration (configure A,R,G,B component values) */
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
/* the length of one line of pixels in bytes + 3 then :
Line Lenth = Active high width x number of bytes per pixel + 3
Active high width = LCD_PIXEL_WIDTH
number of bytes per pixel = 2 (pixel_format : RGB565)
*/
LTDC_Layer_InitStruct.LTDC_CFBLineLength = 240 * 2 + 3;
/* the pitch is the increment from the start of one line of pixels to the
start of the next line in bytes, then :
Pitch = Active high width x number of bytes per pixel
*/
LTDC_Layer_InitStruct.LTDC_CFBPitch = 240 * 2;
/* Configure the number of lines */
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = 320;
/* Start Address configuration : the LCD Frame buffer is defined on SDRAM */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = ILI9341_FRAME_BUFFER;
/* Initialize Layer 1 */
LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct);
/* Configure Layer2 */
/* Start Address configuration : the LCD Frame buffer is defined on SDRAM w/ Offset */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = ILI9341_FRAME_BUFFER + ILI9341_FRAME_OFFSET;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_PAxCA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_PAxCA;
/* Initialize Layer 2 */
LTDC_LayerInit(LTDC_Layer2, <DC_Layer_InitStruct);
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable foreground & background Layers */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
LTDC_LayerCmd(LTDC_Layer2, ENABLE);
LTDC_ReloadConfig(LTDC_IMReload);
LTDC_DitherCmd(ENABLE);
/* Display On */
LTDC_Cmd(ENABLE);
LTDC_LayerAlpha(LTDC_Layer1, 255);
LTDC_LayerAlpha(LTDC_Layer2, 0);
LTDC_ReloadConfig(LTDC_IMReload);
}
static void LCD_DithCLUTLayerInit(void)
{
uint32_t uwCounter;
LTDC_CLUT_InitTypeDef LTDC_CLUT_InitStruct;
LTDC_LayerCmd(LTDC_Layer1, DISABLE);
/* Windowing configuration */
/* In this case all the active display area is used to display a picture then :
Horizontal start = horizontal synchronization + Horizontal back porch = 30
Horizontal stop = Horizontal start + window width -1 = 30 + 240 -1
Vertical start = vertical synchronization + vertical back porch = 4
Vertical stop = Vertical start + window height -1 = 4 + 320 -1 */
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 30;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = (LCD_PIXEL_WIDTH + 30 - 1);
LTDC_Layer_InitStruct.LTDC_VerticalStart = 4;
LTDC_Layer_InitStruct.LTDC_VerticalStop = (LCD_PIXEL_HEIGHT + 4 - 1);
/* Pixel Format configuration*/
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_L8;
/* Alpha constant (255 totally opaque) */
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
/* Default Color configuration (configure A,R,G,B component values) */
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
/* the length of one line of pixels in bytes + 3 then :
Line Lenth = Active width x number of bytes per pixel + 3
Active width = LCD_PIXEL_WIDTH
number of bytes per pixel = 1 (pixel_format : L8)
*/
LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((LCD_PIXEL_WIDTH * 1) + 3);
/* the pitch is the increment from the start of one line of pixels to the
start of the next line in bytes, then :
Pitch = Active high width x number of bytes per pixel */
LTDC_Layer_InitStruct.LTDC_CFBPitch = (ImageDithCLUT_width * 1);
/* Configure the number of lines */
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = LCD_PIXEL_HEIGHT;
/* Start Address configuration : the LCD Frame buffer is defined in Flash memory*/
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = (uint32_t)ImageDithCLUT;
/* Initialize LTDC layer 1 */
LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct);
/* CLUT loading --------------------------------------------------------------*/
/* Load 256 colors in CLUT address for Layer 1 */
for(uwCounter = 0; (uwCounter < 256); uwCounter++)
{
LTDC_CLUT_InitStruct.LTDC_CLUTAdress = uwCounter;
LTDC_CLUT_InitStruct.LTDC_BlueValue = (ImageDithCLUT_CLUT[uwCounter] & 0xFF);
LTDC_CLUT_InitStruct.LTDC_GreenValue = (ImageDithCLUT_CLUT[uwCounter] & 0xFF00) >> 8;
LTDC_CLUT_InitStruct.LTDC_RedValue = (ImageDithCLUT_CLUT[uwCounter] & 0xFF0000) >> 16;
LTDC_CLUTInit(LTDC_Layer1, <DC_CLUT_InitStruct);
}
/* CLUT loading end ----------------------------------------------------------*/
/* Enable CLUT for Layer 1 */
LTDC_CLUTCmd(LTDC_Layer1, ENABLE);
/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_SRCR_VBR);
/* Enable backgrounf layers */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_SRCR_VBR);
}
/*
******************************************************************************
*函数：void LCD_GPIOInit(void)
*输入：void
*输出：void
*描述：LCD初始化
******************************************************************************
*/
void LCD_Init(void)
{
LTDC_InitTypeDef LTDC_InitStruct;
LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;
LTDC_Layer_TypeDef LTDC_Layerx;
/* IO口初始化 */
LCD_GPIOInit();
LCD_DisplayOff();
/* 使能LCD时钟 */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_LTDC, ENABLE);
/* 使能DMA失踪*/
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2D, ENABLE);
/* 水平同步信号---低电平有效 */
LTDC_InitStruct.LTDC_HSPolarity = LTDC_HSPolarity_AL;
/* 垂直同步信号---低电平有效 */
LTDC_InitStruct.LTDC_VSPolarity = LTDC_VSPolarity_AL;
/* 数据使能信号---低电平有效 */
LTDC_InitStruct.LTDC_DEPolarity = LTDC_DEPolarity_AL;
/* 像素时钟配置--- */
LTDC_InitStruct.LTDC_PCPolarity = LTDC_DEPolarity_AL;
/* LCD背光设置 */
LTDC_InitStruct.LTDC_BackgroundRedValue = 0;
LTDC_InitStruct.LTDC_BackgroundGreenValue = 0;
LTDC_InitStruct.LTDC_BackgroundBlueValue = 0;
/*
****************************************************************************
*PLLSAI_VCO = HSE*PLLSAI_N / PLL_M = 8 * 192 / 8 = 192MHz
*PLLLCDCLK = PLLSAI_VCO / PLLSAI_R = 192 / 3 = 64 Mhz
*LTDC clock frequency = PLLLCDCLK / RCC_PLLSAIDivR = 64 / 8 = 8 Mhz
****************************************************************************
*/
RCC_PLLSAIConfig(192, 7, 3);
RCC_LTDCCLKDivConfig(RCC_PLLSAIDivR_Div4);
/* 使能PLLSAI时钟 */
RCC_PLLSAICmd(ENABLE);
/* 等待PLLSAI时钟 */
while(RCC_GetFlagStatus(RCC_FLAG_PLLSAIRDY) == RESET){}
/* */
LTDC_InitStruct.LTDC_HorizontalSync = 40;
/* */
LTDC_InitStruct.LTDC_VerticalSync = 9;
/* */
LTDC_InitStruct.LTDC_AccumulatedHBP = 42;
/* */
LTDC_InitStruct.LTDC_AccumulatedVBP = 11;
/* */
LTDC_InitStruct.LTDC_AccumulatedActiveW = 522;
/* */
LTDC_InitStruct.LTDC_AccumulatedActiveH = 283;
/* */
LTDC_InitStruct.LTDC_TotalWidth = 524;
/* */
LTDC_InitStruct.LTDC_TotalHeigh = 285;
LTDC_Init(<DC_InitStruct);
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 43;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = (480 + 43 - 1);
LTDC_Layer_InitStruct.LTDC_VarticalStart = 12;
LTDC_Layer_InitStruct.LTDC_VerticalStop = (272 + 12 - 1);
/* Pixel Format configuration*/
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
/* Alpha constant (255 totally opaque) */
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
/* Default Color configuration (configure A,R,G,B component values) */
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
/* the length of one line of pixels in bytes + 3 then :
Line Lenth = Active high width x number of bytes per pixel + 3
Active high width = LCD_PIXEL_WIDTH
number of bytes per pixel = 2 (pixel_format : RGB565)
*/
LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((480 * 2) + 3);
/* the pitch is the increment from the start of one line of pixels to the
start of the next line in bytes, then :
Pitch = Active high width x number of bytes per pixel
*/
LTDC_Layer_InitStruct.LTDC_CFBPitch = (480 * 2);
/* configure the number of lines */
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = 272;
/* Input Address configuration */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER;
LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct);
/* Configure Layer2 */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER + BUFFER_OFFSET;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_PAxCA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_PAxCA;
LTDC_LayerInit(LTDC_Layer2, <DC_Layer_InitStruct);
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable foreground & background Layers */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
// LTDC_LayerCmd(LTDC_Layer2, ENABLE);
LTDC_ReloadConfig(LTDC_IMReload);
LCD_DisplayOn();
}
static void TM_LCD_INT_InitLayers(void) {
LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;
/* Windowing configuration */
/* Horizontal start = horizontal synchronization + Horizontal back porch = 43
Vertical start = vertical synchronization + vertical back porch = 12
Horizontal stop = Horizontal start + LCD_PIXEL_WIDTH -1
Vertical stop = Vertical start + LCD_PIXEL_HEIGHT -1
*/
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 144;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = (LCD.Width + 144 - 1);
LTDC_Layer_InitStruct.LTDC_VerticalStart = 35;
LTDC_Layer_InitStruct.LTDC_VerticalStop = (LCD.Height + 35 - 1);
/* Pixel Format configuration*/
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
/* Alpha constant (255 totally opaque) */
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
/* Default Color configuration (configure A,R,G,B component values) */
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
/* the length of one line of pixels in bytes + 3 then :
Line Lenth = Active high width x number of bytes per pixel + 3
Active high width = LCD_PIXEL_WIDTH
number of bytes per pixel = 2 (pixel_format : RGB565)
*/
LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((LCD.Width * 2) + 3);
/* the pitch is the increment from the start of one line of pixels to the
start of the next line in bytes, then :
Pitch = Active high width x number of bytes per pixel
*/
LTDC_Layer_InitStruct.LTDC_CFBPitch = (LCD.Width * 2);
/* Configure the number of lines */
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = LCD.Height;
/* Start Address configuration : the LCD Frame buffer is defined on SDRAM */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD.FrameStart;
LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct);
/* Configure Layer2 */
/* Start Address configuration : the LCD Frame buffer is defined on SDRAM w/ Offset */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD.FrameStart + LCD.FrameOffset;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_PAxCA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_PAxCA;
LTDC_LayerInit(LTDC_Layer2, <DC_Layer_InitStruct);
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable foreground & background Layers */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
LTDC_LayerCmd(LTDC_Layer2, ENABLE);
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable dithering */
LTDC_DitherCmd(ENABLE);
/* Set opacity */
LTDC_LayerAlpha(LTDC_Layer1, 255);
LTDC_LayerAlpha(LTDC_Layer2, 0);
/* Immediate reload */
LTDC_ReloadConfig(LTDC_IMReload);
}
