After draw the image try to draw anything like a rectangle
lcd_draw_rectangle(50,50, 150, 150, 2, RED);
The shape you draw flickers, it does not flicker if you draw all the display for example drawing the camera or a image, happens only when drawing a shape. Can be seen also on face detect using a image
Is like refresh of the display is not on sync or similar
In this gif you can see the shapes flickering, it happens drawing anything over the image
Board is a sipeed M1 dock
For example on lcd image example https://github.com/kendryte/kendryte-standalone-demo/tree/develop/lcd_image
After draw the image try to draw anything like a rectangle
lcd_draw_rectangle(50,50, 150, 150, 2, RED);The shape you draw flickers, it does not flicker if you draw all the display for example drawing the camera or a image, happens only when drawing a shape. Can be seen also on face detect using a image
Is like refresh of the display is not on sync or similar
In this gif you can see the shapes flickering, it happens drawing anything over the image
Any clue?