ST7735 Tearing (no VSYNC)

[Tom]

Hi Everyone,

I’ve implemented a ST7735S on the NRF52832 using the GFX example. My problem is that I can’t seem to update the screen in such a way that the screen doesn’t tear. I’m not sure if I’m using the right terminology, but this seems like a known issue when the TE pin isn’t brought out. Is there another way of handling this? My display is really for text only (imagine a weight scale application). I am using the default 24pt font, and do a write of the background color prior to writing the new value so i don’t have to clear the whole screen.

Is there any tricks that I should look at to minimize the supposed tearing?

Thanks!

[Jørgen Holmefjord]

Hi,

Have you modified the example or the configuration? Which frequency are you running the SPI interface at?

I do not have any experience with this particular display, but if the issue is a missing pin output, I'm not sure what we can do to help.

Best regards,
Jørgen