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Improved check for rendering in progress in HX83XX display driver, now both chip select and DMA enable bit are verified

This commit is contained in:
Silvano Seva 2020-10-25 17:22:33 +01:00 committed by Niccolò Izzo
parent 1877f92905
commit bf3488def8
1 changed files with 6 additions and 2 deletions
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8
platform/drivers/display/HX83XX_MDxx380.c
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@ -401,8 +401,12 @@ void display_render()
bool display_renderingInProgress() bool display_renderingInProgress()
{ {
/* Rendering is in progress if display's chip select is low. */ /*
return gpio_readPin(LCD_CS); * Rendering is in progress if display's chip select is low or a DMA
* transfer is in progress.
*/
bool dmaBusy = (DMA2_Stream7->CR & DMA_SxCR_EN) ? true : false;
return (gpio_readPin(LCD_CS) == 0) || dmaBusy;
} }
void *display_getFrameBuffer() void *display_getFrameBuffer()