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    T113 RGB LCD(HV)闪屏问题

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    • S
      sulong LV 4 last edited by

      请教大佬们,我遇到这个问题,调了两个星期了,一直没办法解决,请帮忙看看,谢谢了!!

      在调试过程中发现 闪屏 ,时序这方面已经安卓lcd规格书上面的参数写到设备树上面了时序如下:
      QQ截图20230522214650.png QQ截图20230522214614.png

      调试闪屏的视频:全志T113 RGB 屏驱动调试闪屏 链接

      使用cat /sys/class/disp/disp/attr/sys 查看 输出如下:QQ截图20230522220243.png

      时钟:
      QQ截图20230522220303.png

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        z376086907 LV 2 last edited by

        devmem 0x02001B60 看下,如果是0x81000000

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        • Z
          z376086907 LV 2 @sulong last edited by

          @sulong devmem 0x02001B60,如果结果为0x81000000,试一下执行devmem 0x02001B60 32 0x81000001

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            xuzhenghao LV 3 last edited by

            抓下DCLK看看是不是设置的22M,T113-S3 DCLK是288M分频的,dts里面设置是没有效果的。实际频率有可能是48M导致你屏闪

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            • vincent1
              Shy LV 6 @xuzhenghao last edited by

              @xuzhenghao 如果按你所说的情况下该怎么办呢,dts下改动是没用的

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                xuzhenghao LV 3 @vincent1 last edited by

                @vincent1 参考下这份文档:https://blog.csdn.net/qq_34440409/article/details/122021748 ,我按照这份文档试过实测有效

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                  zadme LV 1 @z376086907 last edited by

                  @z376086907 这个修改寄存器值的方式,有办法通过改代码修复吗,或者有没有补丁

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