STM32L4R9AI-EVAL frame buffer accessing....

[prathima]

Hello Guys......

I am working on STM32L4R9AI - EVAL board .

My requirement is I want to access the frame buffer,where the entire screens data have been storing...So i want to access that particular buffer and i want to do my own touch actions inside that buffer....

I want to control the frame buffer...

Can we do that,if Yes how can we do that...

I asked the question , but you said about locking the buffer

but i want to access i said above on it...

Thank you very much.....

[Romain DIELEMAN]

Hi,

Digging this up to make sure you find a solution to your issue in the other topics you created.

/Romain

[MM..1]

@prathima​  Have you still trouble access framebuffer ? Simple reply is when ou use single buffer config, you can change pixels with calculate position and write to memory. Write can be simple *= , DMA or D2DMA, but your changes against touchgfx engine will be overwrited when touchgfx invalidate used...