8000 Why QSPI dont support done callback ??? · Issue #203 · esp-arduino-libs/ESP32_Display_Panel · GitHub
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Why QSPI dont support done callback ??? #203

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mmar22 opened this issue May 22, 2025 · 1 comment
Open

Why QSPI dont support done callback ??? #203

mmar22 opened this issue May 22, 2025 · 1 comment

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@mmar22
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mmar22 commented May 22, 2025 •
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I use latest and result is
[I][Panel][esp_panel_board.cpp:0235](init): Board initialize success [E][Panel][esp_panel_lcd.cpp:0769](attachRefreshFinishCallback): Only valid for RGB and MIPI-DSI bus [I][Panel][esp_panel_board.cpp:0253](begin): Beginning board (****) [I][Panel][esp_lcd_st77916.c:0068](esp_lcd_new_panel_st77916): version: 1.0.0 [I][Panel][esp_panel_board.cpp:0463](begin): Board begin success

can anybody have info why v 1.x dnot support it and 0.1 yes ???

Next issue is on my display if set rotate xy image is 1px shifted ? I set GAP Y 1 and seems ok, this bug is long time.

Disp ST77916 QSPI. I require DMA donecb.
@Lzw655
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Lzw655 commented May 23, 2025

Hi @mmar22,

This is because the previous naming was not accurate. The attachRefreshFinishCallback() callback represents the VSYNC signal of the RGB/MIPI LCD, while the QSPI LCD currently does not have this signal. The new version provides a more accurate attachDrawBitmapFinishCallback() to indicate the completion of the data transfer of drawBitmap().

Sorry, but we haven't encountered the ST77916 issue yet. This may be related to the screen. The driver only sends the corresponding rotation command.

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