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The STM32 LTDC display controller provides a parallel digital RGB and signals for horizontal, vertical synchronization, Pixel Clock and Data Enable as output to interface directly to a variety of LCD and TFT panels. The LTDC main features are: - 24-bit RGB Parallel Pixel Output, Programmable timings & polarity for HSync, VSync and Data Enable. - 2 layers with Blending, Color Keying, Window position & size, Dithering, Background color, Color Look-Up Table (CLUT). - Supported layer color formats: ARGB8888, RGB888, RGB565, ARGB1555, ARGB4444, L8 CLUT, AL44 & AL88 This LTDC driver: - supports: RGB parallel output with timings & polarity, 1 layer in RGB565. - supports but with hard-coded configurations: blending, window position & size (crop), background color. - does not support yet: rgb888, argb8888, 8-bit clut, dithering. This LTDC driver is compatible with all stm32 platforms with the LTDC IP and has been tested on stm32 f746-disco board. Signed-off-by: Philippe CORNU <philippe.cornu@st.com> |
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