[N9H20 Non-OS] How to enable multiple buffers to avoid flicker or tearing?

Platform: N9H20
Platform resource link: https://www.nuvoton.com/hq/products/app ... _locale=en
BSP link: https://github.com/OpenNuvoton/N9H20_emWin_NonOS
IDE: Keil professional

NOTE: Please download the latest version of N9H20 BSP from OpenNuvoton.

Follow the steps to enable emWin multiple buffers:
1. remove LCDConf.c from sample project
2. add LCDConf2.c to sample project
3. remove GUIConf2.c from sample project
4. add GUIConf2.c to sample project
5. increase main.c frame buffer size

1. #ifdef __ICCARM__
   
2. #pragma data_alignment = 32
   
3. UINT8 u8FrameBuf[XSIZE_PHYS*YSIZE_PHYS*2*3];
   
4. #else
   
5. UINT8 u8FrameBuf[XSIZE_PHYS*YSIZE_PHYS*2*3] __attribute__((aligned(32)));
   
6. #endif

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6. enable multiple buffers after GUI_Init():

1. GUI_Init();
   
2. 
   
3. WM_MULTIBUF_Enable(1);
   
4. GUI_MEMDEV_MULTIBUF_Enable(1);

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7. password is nuvoton
N9H20_multiple_buffers.zip (5.2 KB, 下载次数: 472)

2020-4-23 10:07 上传

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