Posted on June 30, 2016 at 11:55Hi,
I plan to build a board with an STM32F446VE + IS66WV51216EBLL
As the STM32F446VE is a 100pin package, it does not offer non-multiplexed interface on the FMC.
So I was considering using the FMC in multiplexed PSRAM mode, and adding a latch like the 74LVC373AD device (to transform the multiplexed interface to non-multiplexed interface), but it seems that the FMC_NL ( = NADV ) line is inverted ..
Couldn't find if it was possible to invert FMC_NL logic, so I suppose I can't.
Consequently, it seems I should add an inverter before the latch.
Sounds tricky in the end, and as I couldn't find any example on the internet of someone using the multiplexed FMC on non-multiplexed PSRAM, I wonder is this can really work ..
Any advice ?
Thanks and best regards,
Vincent.
#stm32f4 #sram #- #fmc
