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STrop
Associate II
April 16, 2020
Question

DMA2D and STemWin LCD driver 24BPP

  • April 16, 2020
  • 0 replies
  • 452 views

Hello,

I try to figured out if STemWin use the DMA2D to display JPEG or BMP when configured in 24bpp (GUICC_M888) with LIN lcd driver

As descrived in AN4323 Rev 5 4.1.3 Hardware acceleration (https://www.st.com/content/ccc/resource/technical/document/application_note/54/c9/95/42/8c/0b/43/69/DM00089670.pdf/files/DM00089670.pdf/jcr:content/translations/en.DM00089670.pdf)

The LCD_DEVFUNC_DRAWBMP_24BPP is not yet implemented. I have tried to register my own one with LCD_SetDevFunc(i, LCD_DEVFUNC_24BPP, (void(*)(void))_LCD_DrawBitmap24bpp)); in LCD_X_Config.

The _LCD_DrawBitmap24bpp is never called when displaying a 24bpp BMP or JPEG

Did I miss something ?

Thanks

Simon

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