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Using the STM32 LTDC display controller, can the framebuffer be the same size as a layer?

Question asked by mathiasmeier.mic.002 on Feb 6, 2018
Latest reply on Feb 6, 2018 by horbach.markus

Using the STM32F756. 

 

I have a full screen graphic on one layer and some text on another layer. I just need to update the text and not the whole screen. So, if I define the text layer size just big enough to cover the text, will that reduce the effective framebuffer size? That is, can I reduce the required frambuffer memory requirements by using a smaller layer or does the LTDC still require a full screen amount of contiguous memory to operate and just ignore values outside the layer?

 

Thanks!

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