AnsweredAssumed Answered

STemWIN + SDRAM + LTDC

Question asked by Bobino on Jun 20, 2016
Latest reply on Aug 26, 2016 by FTITI.Walid
Hello,

I use a STM32F429 Discovery board with an other Display (Newheaven 800x480,7 inches

NHD-7.0-800480EF-ATXV#-CTP

I use the LTDC controller of the STM32F4 to control the display. The buffer for the display is in the SDRAM and I use multibuffering to avoid flickering.
The display is OK, I seen the widget on it but the processor is very slow. Approvimatively 1 seconds to refresh a picture and copy the content from one buffer to the other.
I suppose it's come from the access conflict to the SDRAM but I don't how to configure it.
Here is my clock configuration:
Timing_LR.jpg
My FMC config is here:

FMC_LR.PNG
Do you knoe how to configure it?

Thank in advance.

Best regards.



Outcomes