Posted on June 20, 2016 at 04:00I use LTDC drive RGB screen, use STM32F746 DISCO,I define this:
#define XSIZE_PHYS 480
#define YSIZE_PHYS 272
#define NUM_BUFFERS 1 /* Number of multiple buffers to be used */
#define NUM_VSCREENS 1 /* Number of virtual screens to be used */
#define BK_COLOR GUI_DARKBLUE
#undef GUI_NUM_LAYERS
#define GUI_NUM_LAYERS 2
#define COLOR_CONVERSION_0 GUICC_M8888I
#define DISPLAY_DRIVER_0 GUIDRV_LIN_32
#if (GUI_NUM_LAYERS > 1)
#define COLOR_CONVERSION_1 GUICC_M1555I
#define DISPLAY_DRIVER_1 GUIDRV_LIN_16
#endif
#define LCD_LAYER0_FRAME_BUFFER ((int)0xC0800000 - XSIZE_PHYS*YSIZE_PHYS*4*NUM_BUFFERS)
#define LCD_LAYER1_FRAME_BUFFER ((int)0xC0800000 - XSIZE_PHYS*YSIZE_PHYS*4*NUM_BUFFERS - XSIZE_PHYS*YSIZE_PHYS*2*NUM_BUFFERS)
but i watch (0x0xC0800000 - 0x200),no any change when emwin change the screen.am I wasting memory, and how to avoid wasting memory.
