I modify the demo esp-idf/examples/peripherals/lcd/rgb_panel according the demo /esp-idf/examples/peripherals/lcd/i80_controller and the chart is always drift, How can I sovle it (IDFGH-6753)

[Kingwulin]

I modify the demo esp-idf/examples/peripherals/lcd/rgb_panel according the demo /esp-idf/examples/peripherals/lcd/i80_controller
and the chart is always drift, How can I sovle it

[suda-morris]

If this is related to your last post in #8380 Please continue the conversation there, instead of opening a new one. Thanks.

If this is a new issue you met, could you clarify it a little bit? I'm not sure what kind of LCD you're using, and how you initialize your driver. Any code to reproduce?

[Kingwulin]

你好
两个是不同的问题
这个问题是这样的：
1、如果用原本 demo 是可以正常显示的
2、如果我仿照 i80_controller 这个例子添加 logo 显示，显示的实坐标图回一直漂移，如果是只显示图片不断刷新输出也是一样会漂移
3、我所使用的屏幕是这个

[suda-morris]

seems like this is a timing issue, you can try setting proper parameters in panel_config.timings according to your LCD spec.

[Kingwulin]

I change the panel_config.timings according the datasheet below ,but the question is still exit
2021923171633414.pdf

[Kingwulin]

also I set the dclk freq to 9M/s

[Kingwulin]

would you please share me anohter rgbpanel demo that display a dynamic image

[suda-morris]

We found some hardware bug in the LCD_CAM peripheral, and we're working on a workaround on it. Will let you know when the fix is available on the master branch. Thanks.