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csfc

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I need help, when I use the GD32F303 development board and connect it to the TFT LCD display, the screen flickers. Just like in the video, the text keeps flickering when displayed. How should I solve this problem?

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lugl4313820

You can play the game. If you have the hardware, you can probably find the cause for you.

秦天qintian0303

Refresh efficiency issue. You should use full refresh mode when changing the display. It seems that white is writing on the screen.

csfc

Qintianqintian0303 posted on 2024-6-12 16:18 Refresh efficiency issue, you should use full refresh mode when changing the display, it seems like the screen is being written in white

Yes, I want to make a multimeter test interface. Press the button to enter the interface and display the measurement data. However, after the layout, it will always flicker. How should this be solved?

damiaa

It seems like you are updating the entire screen content every time, and the screen refresh frequency is very low.

If only the modified parts were refreshed on the screen, it probably wouldn't flicker like this.

csfc

damiaa posted on 2024-6-13 08:56 It seems like you are updating the entire screen content every time, and the screen refresh frequency is very low. If you only refresh the screen where you have modified, it probably won't flicker like this.

Yes, boss. I added a screen clearing function and then displayed the text. I thought that by switching the button once, I would enter a new interface. I tried what you recommended to refresh the screen where I modified it.

秦天qintian0303

csfc posted on 2024-6-13 08:18 Yes, I want to make a multimeter test interface, press the button to enter the interface, and display the measurement data, but after the layout, it will always flicker, ...

The partial refresh method is used. Instead of clearing the entire screen, only the changed parts are covered. The resolution of this screen is relatively high, but the full refresh efficiency is too low.

csfc

Qintianqintian0303 posted on 2024-6-13 09:49 Use partial refresh, not full screen, just cover the changed part. This screen looks relatively high resolution, full refresh efficiency...

OK, I have tried refreshing by filling the area with color blocks. There is still a slight flicker after the changed part is covered. Is the refresh method wrong?

hahajing

First check if there is any problem with the static display, then increase the frequency of the MCU itself and the refresh rate of the screen, optimize the output program efficiency, and don't have too high expectations for domestic screens.

tagetage

This should be a program problem. A software problem.

csfc

hahajing posted on 2024-6-14 21:56 First check if there is any problem with the static display, then increase the frequency of the MCU itself and the refresh rate of the screen, optimize the output program efficiency, and don't have too high expectations for domestic screens...

Static is normal, no flickering.

csfc

tagetage posted on 2024-6-14 23:13 This should be a program problem. A software problem.

possible