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26 ноября
484886 Топик полностью
Hobo (01.02.2014 00:56, просмотров: 73) ответил Nikolaev_Aleksey на а сможете попробовать на ARGB8888 режиме 2х слоях?
Дискавери, emWin не использую. Попробовать не обещаю, хотел было попробовать 800х600 - с лету не пошло, разбираться не стал.  clk=25MHz #define PIXEL_WIDTH ((uint16_t)640) #define PIXEL_HEIGHT ((uint16_t)480) #define HOR_SYNC_TIME 96 #define VER_SYNC_TIME 2 #define HOR_BACK_PORCH 40 #define VER_BACK_PORCH 25 #define HOR_FRONT_PORCH 8 #define VER_FRONT_PORCH 2 /* Polarity configuration */ /* 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_IIPC; /* 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; /* Timing configuration */ /* Configure horizontal synchronization width */ LTDC_InitStruct.LTDC_HorizontalSync = HOR_SYNC_TIME-1; /* Configure vertical synchronization height */ LTDC_InitStruct.LTDC_VerticalSync = VER_SYNC_TIME-1; /* Configure accumulated horizontal back porch */ LTDC_InitStruct.LTDC_AccumulatedHBP = HOR_SYNC_TIME + HOR_BACK_PORCH - 1; /* Configure accumulated vertical back porch */ LTDC_InitStruct.LTDC_AccumulatedVBP = VER_SYNC_TIME + VER_BACK_PORCH - 1; /* Configure accumulated active width */ LTDC_InitStruct.LTDC_AccumulatedActiveW = HOR_SYNC_TIME + HOR_BACK_PORCH + PIXEL_WIDTH - 1; /* Configure accumulated active height */ LTDC_InitStruct.LTDC_AccumulatedActiveH = VER_SYNC_TIME + VER_BACK_PORCH + PIXEL_HEIGHT - 1; /* Configure total width */ LTDC_InitStruct.LTDC_TotalWidth = HOR_SYNC_TIME + HOR_BACK_PORCH + PIXEL_WIDTH + HOR_FRONT_PORCH - 1; /* Configure total height */ LTDC_InitStruct.LTDC_TotalHeigh = VER_SYNC_TIME + VER_BACK_PORCH + PIXEL_HEIGHT + VER_FRONT_PORCH - 1; // LAYER1 LTDC_Layer_InitStruct.LTDC_HorizontalStart = HOR_SYNC_TIME + HOR_BACK_PORCH; LTDC_Layer_InitStruct.LTDC_HorizontalStop = (PIXEL_WIDTH + HOR_SYNC_TIME + HOR_BACK_PORCH - 1); LTDC_Layer_InitStruct.LTDC_VerticalStart = VER_SYNC_TIME + VER_BACK_PORCH; LTDC_Layer_InitStruct.LTDC_VerticalStop = (PIXEL_HEIGHT + VER_SYNC_TIME + VER_BACK_PORCH - 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; LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((PIXEL_WIDTH * BYTE_PER_PIXEL) + 3); LTDC_Layer_InitStruct.LTDC_CFBPitch = (PIXEL_WIDTH * BYTE_PER_PIXEL); LTDC_Layer_InitStruct.LTDC_CFBLineNumber = PIXEL_HEIGHT; /* Configure the number of lines */ /* Start Address configuration : the LCD Frame buffer is defined on SDRAM */ LTDC_Layer_InitStruct.LTDC_CFBStartAdress = FRAME_BUFFER1; LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct); /* Initialize LTDC layer 1 */ /********** Configure Layer2 *********/ LTDC_Layer_InitStruct.LTDC_CFBStartAdress = FRAME_BUFFER2; /* 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); /* Initialize LTDC layer 2 */ ПыСы. Поначалу сам принял за помеху - смешение картинки первого и второго слоев.