/*
* 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);
}
void MainTask_ColorKeying(void)
{
uint32_t lastMiliseconds = 0;
LCD_Init();
SDRAM_Init();
while(!tamperPushed)
{
LCD_ReSetColorKeying();
LTDC_DitherCmd(ENABLE);
DrawText((uint8_t*)" Color Keying OFF");
DMA2D_CopySTLogo(LOGO_OFFSET);
LCD_BackgroundLayerInit();
/* wait 2s */
lastMiliseconds = getMiliseconds();
while (!tamperPushed && ((getMiliseconds()-lastMiliseconds)<2000))
{
}
LCD_SetColorKeying(0xFFFFFF);
DrawText((uint8_t*)" Color Keying ON");
DMA2D_CopySTLogo(LOGO_OFFSET);
/* wait 2s */
lastMiliseconds = getMiliseconds();
while (!tamperPushed && ((getMiliseconds()-lastMiliseconds)<2000))
{
}
LTDC_CLUTCmd(LTDC_Layer1, DISABLE);
LTDC_CLUTCmd(LTDC_Layer2, DISABLE);
LCD_ReSetColorKeying();
LTDC_ReloadConfig(LTDC_IMReload);
}
}
void LCDTFTConf::LCD_LayerInit(void)
{
LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;
/* 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_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_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;
/* Start Address configuration : the LCD Frame buffer is defined on SDRAM */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER;
/* Initialize LTDC 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 = 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_Layer1, ENABLE);
LTDC_LayerCmd(LTDC_Layer2, ENABLE);
/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_IMReload);
/* dithering activation */
LTDC_DitherCmd(ENABLE);
}
static void LCD_Config(void)
{
LTDC_InitTypeDef LTDC_InitStruct;
LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
/* Configure NCS in Output Push-Pull mode */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/* Configure the LCD Control pins ------------------------------------------*/
LCD_CtrlLinesConfig();
LCD_ChipSelect(DISABLE);
LCD_ChipSelect(ENABLE);
/* Configure the LCD_SPI interface -----------------------------------------*/
LCD_SPIConfig();
/* Power on the LCD --------------------------------------------------------*/
LCD_PowerOn();
/* Enable the LTDC Clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_LTDC, ENABLE);
/* Enable the DMA2D Clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2D, ENABLE);
/* Configure the LCD Control pins */
LCD_AF_GPIOConfig();
/* Configure the FMC Parallel interface : SDRAM is used as Frame Buffer for LCD */
SDRAM_Init();
/* Enable Pixel Clock --------------------------------------------------------*/
/* Configure PLLSAI prescalers for LCD */
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAI_N = 192 Mhz */
/* PLLLCDCLK = PLLSAI_VCO Output/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_Div8);
/* Enable PLLSAI Clock */
RCC_PLLSAICmd(ENABLE);
/* Wait for PLLSAI activation */
while(RCC_GetFlagStatus(RCC_FLAG_PLLSAIRDY) == RESET)
{
}
/* LTDC Initialization -------------------------------------------------------*/
/* Initialize the horizontal synchronization polarity as active low*/
LTDC_InitStruct.LTDC_HSPolarity = LTDC_HSPolarity_AL;
/* Initialize the vertical synchronization polarity as active low */
LTDC_InitStruct.LTDC_VSPolarity = LTDC_VSPolarity_AL;
/* Initialize the data enable polarity as active low */
LTDC_InitStruct.LTDC_DEPolarity = LTDC_DEPolarity_AL;
/* Initialize the pixel clock polarity as input pixel clock */
LTDC_InitStruct.LTDC_PCPolarity = LTDC_PCPolarity_IPC;
/* Timing configuration */
/* Configure horizontal synchronization width */
LTDC_InitStruct.LTDC_HorizontalSync = 9;
/* Configure vertical synchronization height */
LTDC_InitStruct.LTDC_VerticalSync = 1;
/* Configure accumulated horizontal back porch */
LTDC_InitStruct.LTDC_AccumulatedHBP = 29;
/* Configure accumulated vertical back porch */
LTDC_InitStruct.LTDC_AccumulatedVBP = 3;
/* Configure accumulated active width */
LTDC_InitStruct.LTDC_AccumulatedActiveW = 269;
/* Configure accumulated active height */
LTDC_InitStruct.LTDC_AccumulatedActiveH = 323;
/* Configure total width */
LTDC_InitStruct.LTDC_TotalWidth = 279;
/* Configure total height */
LTDC_InitStruct.LTDC_TotalHeigh = 327;
LTDC_Init(<DC_InitStruct);
/* Configure R,G,B component values for LCD background color */
LTDC_InitStruct.LTDC_BackgroundRedValue = 0;
LTDC_InitStruct.LTDC_BackgroundGreenValue = 0;
LTDC_InitStruct.LTDC_BackgroundBlueValue = 0;
LTDC_Init(<DC_InitStruct);
/* LTDC initialization end ---------------------------------------------------*/
/* Layer1 Configuration ------------------------------------------------------*/
/* 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 = (240 + 30 - 1);
LTDC_Layer_InitStruct.LTDC_VerticalStart = 4;
LTDC_Layer_InitStruct.LTDC_VerticalStop = (320 + 4 - 1);
/* Pixel Format configuration*/
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
/* Alpha constant (255 totally opaque) */
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
/* 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;
/* Input Address configuration */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = (uint32_t)&RGB565_240x320;
/* 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 = 240
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;
LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct);
LTDC_DitherCmd(ENABLE);
}
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);
}
void MainTask_ColorFormat(void)
{
uint32_t lastMiliseconds = 0;
LCD_Init();
SDRAM_Init();
/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_IMReload);
while(!tamperPushed)
{
DMA2D_CopyPicture(DMA2D_RGB888);
LTDC_DitherCmd(ENABLE);
DrawText((uint8_t*)" RGB888 Dither");
LCD_RGB888LayerInit();
/* wait 2s */
lastMiliseconds = getMiliseconds();
while (!tamperPushed && ((getMiliseconds()-lastMiliseconds)<2000))
{
}
LTDC_DitherCmd(DISABLE);
DrawText((uint8_t*)" RGB888");
LCD_RGB888LayerInit();
/* wait 2s */
lastMiliseconds = getMiliseconds();
while (!tamperPushed && ((getMiliseconds()-lastMiliseconds)<2000))
{
}
LTDC_DitherCmd(ENABLE);
DMA2D_CopyPicture(DMA2D_RGB565);
DrawText((uint8_t*)" RGB565");
LCD_RGB565LayerInit();
/* wait 2s */
lastMiliseconds = getMiliseconds();
while (!tamperPushed && ((getMiliseconds()-lastMiliseconds)<2000))
{
}
DrawText((uint8_t*)" L8 CLUT");
LCD_OptCLUTLayerInit();
/* wait 2s */
lastMiliseconds = getMiliseconds();
while (!tamperPushed && ((getMiliseconds()-lastMiliseconds)<2000))
{
}
DrawText((uint8_t*)" L8 CLUT Dither");
LCD_DithCLUTLayerInit();
/* wait 2s */
lastMiliseconds = getMiliseconds();
while (!tamperPushed && ((getMiliseconds()-lastMiliseconds)<2000))
{
}
LTDC_CLUTCmd(LTDC_Layer1, DISABLE);
LTDC_CLUTCmd(LTDC_Layer2, DISABLE);
LCD_ReSetColorKeying();
LTDC_ReloadConfig(LTDC_IMReload);
}
}
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);
}
