How can I stop the tearing on my LCD Display?
Posted: Tue Nov 01, 2022 3:51 am
Hi,
I am running a 7-inch LCD on an ESP32-S3 with LVGL.
I am running it through the RGB interface.
It works:
But, when ever any pixels get updated, it starts tearing:
I have tried all kinds of setups:
1 Buffer
2 Buffers
small buffer
large buffer
callback functions: esp_lcd_rgb_panel_frame_trans_done_cb_t
I can only make it work if I turn down the Display Clock Frequency (DCLK) to 14 MHZ.
But then the whole display flickers.
The tearing seems to happen during esp_lcd_panel_draw_bitmap().
On ESP-IDF, there is a callback .on_vsync. But its not available on Arduino.
Does someone have a suggestion on how I can fix this?
I am running a 7-inch LCD on an ESP32-S3 with LVGL.
I am running it through the RGB interface.
It works:
- IMG_7376.JPG (64.45 KiB) Viewed 3105 times
- IMG_7375.JPG (110.97 KiB) Viewed 3105 times
1 Buffer
2 Buffers
small buffer
large buffer
callback functions: esp_lcd_rgb_panel_frame_trans_done_cb_t
I can only make it work if I turn down the Display Clock Frequency (DCLK) to 14 MHZ.
But then the whole display flickers.
The tearing seems to happen during esp_lcd_panel_draw_bitmap().
On ESP-IDF, there is a callback .on_vsync. But its not available on Arduino.
Does someone have a suggestion on how I can fix this?