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FMC LTDC SDRAM Burst access

Question asked by mh on Sep 21, 2017

Hi guys,


i have a custom board on which both, LTDC and FMC conneted SDRAM, is used.

If I enable the burst access to the SDRAM the board crashes after a while. Assuming the accesses between SDRAM and LTDC are not handled properly. If I disable the burts access to sdram everything is fine.

 I tried also to set the SDRAM as shareable memory with the mpu.

I'm using the SDRAM for heap and framebuffer.


But no success with that.


Anyone an idea ?