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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F469 датащи(PDF) 45 Page - STMicroelectronics |
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STM32F469 датащи(HTML) 45 Page - STMicroelectronics |
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45 / 91 page  DocID029237 Rev 2 45/91 AN4861 Creating a graphical application with LTDC 89 pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB888; pLayerCfg.Alpha = 255; pLayerCfg.Alpha0 = 0; pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA; pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR1_PAxCA; /* Framebuffer start address: LTDC fetches the image directly from internal Flash the real image width is 448 pixels. Only the 448 pixels width is displayed*/ pLayerCfg.FBStartAdress = (uint32_t)&image_data_Image_RGB888_448x272; pLayerCfg.ImageWidth = 448; pLayerCfg.ImageHeight = 272; pLayerCfg.Backcolor.Blue = 0; pLayerCfg.Backcolor.Green = 0; pLayerCfg.Backcolor.Red = 0; if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK) { Error_Handler(); } Figure 26. Reducing layer window and framebuffer line widths • Add a number of dummy bytes at the end of every line of pixels to match the closest frame line width multiple of 64 bytes. This can be done using the LTDC layer pitch (see Section 3.3: Two programmable LTDC layers). To do this, the user must consider the two points below: – The framebuffer should contain the dummy bytes (as described in Figure 27): when writing data into the framebuffer, it can be done by programming an output |
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