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    全志A33 SPI+RGB 屏图形显示漂移的异常

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    • S
      sulong LV 4 last edited by

      请问大佬们如何解决这个
      静态显示 视图错位,动态刷屏时整个画面会漂移和错位
      2ebef144c37cc16c88cb329487b58a7.png
      14a6761d-bffd-41f8-90ae-fa1a9756b12a-image.png
      defde94c-bb01-45ef-9154-37b14a9ad18d-image.png
      675ba7e2-200a-4e7a-8316-2a320c53ec0a-image.png
      屏配置
      1f1b62bd-b2c5-4d02-85a4-c65a899af5a8-image.png

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      • S
        shuaige LV 6 @sulong last edited by

        @sulong 可能是屏配置的模式有关。之前在其他平台上遇到,屏配置了 SYNC 模式, RGB芯片输出 DE 模式这种情况导致偏移。

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        • L
          ljz_cjlu LV 2 @sulong last edited by

          @sulong 可能是分辨率的问题

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          • S
            sulong LV 4 @shuaige last edited by

            @shuaige 这是获取到的lcd 的相关信息
            ===to open /dev/fb0 ok===
            === Basic LCD Parameters ===
            Active Resolution: 240x320
            Virtual Resolution: 240x640
            Color Depth: 32 bits
            Frame Buffer Size: 614400 bytes
            Bytes per Line: 960
            Device ID:

            === Timing Parameters ===
            Horizontal Sync: 10 pixels
            Vertical Sync: 4 lines
            Horizontal Front Porch: 10
            Horizontal Back Porch: 38
            Vertical Front Porch: 4
            Vertical Back Porch: 8
            Pixel Clock: 250000 ps
            Active Resolution: 240x320
            Pixel Clock: 4.00 MHz
            Frame Rate: 39.95 Hz
            H Total: 298 | V Total: 336
            HSync: 10 | HFP: 10 | HBP: 38
            VSync: 4 | VFP: 4 | VBP: 8

            === Color Format ===
            Red Offset: 16 bits
            Red Length: 8 bits
            Green Offset: 8 bits
            Green Length: 8 bits
            Blue Offset: 0 bits
            Blue Length: 8 bits

            === Memory Attributes ===
            Memory Physical Address: 0x58210000
            Memory Type: Packed
            Memory Access: Direct Color
            Device ID:
            Memory Type: 0

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