STM32F429 DISCOVERY LTDC 640 * 480 8BIT SDRAM INTERFACE

[naser moravej]

Hello everyone.

I want to show a picture from external SDRAM in 8bit mode using FMC with stm32f429zi discovery board.

As long as I use FMC in 16bit mode with 16-bit byte enabled, I can show a picture but as soon as I uncheck "16-bit byte enable", even in 16 bit mode, everything get ruined.

Thanks

[waclawek.jan]

> as soon as I uncheck "16-bit byte enable"

Where do you uncheck that? What does it mean in terms of FMC registers' content? What does "even in 16-bit mode" mean?

Don't you exceed the memory's bandwith? Read AN4861.

JW