I'm using STM32F756
The SD card is 20 MHz and I know the performance would suck for an 800 x 480 display, but will the hardware do it? Or is RAM the only medium required?
I screwed up, have no external RAM and there's not enough internal RAM.
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Sign up to join this communityI'm using STM32F756
The SD card is 20 MHz and I know the performance would suck for an 800 x 480 display, but will the hardware do it? Or is RAM the only medium required?
I screwed up, have no external RAM and there's not enough internal RAM.
The SD card is 20 MHz and I know the performance would suck for an 800 x 480 display, but will the hardware do it?
No. The LCD driver needs to be able to access its framebuffer as memory. SDIO isn't memory-mapped, and QSPI won't drive an SD card.
Basically, no. The SD card might be fast enough for burst transfers, but it does not provide deterministic worst case access for the data which is required to drive a frame buffer.
Even if the read/write speed would match. You would rapidly exceed read/write cycles!
-> No