Hi
I am working on a project with an STM32H743 and a 32-bit SDRAM
The FMC signals are quite randomly scattered across the package and this makes layout quite convoluted and difficult. I'd like to swap byte-lanes and individual bits within each byte, for example:
- connect DQ0 - DQ7 on the SDRAM to DQ24 - DQ31 on the microntroller, then swap the mask signals DQM0 with DQM3.
- swap bits within a byte, for example after swapping the bytes as above, connect DQ0 to DQ25 on the micro and DQ1 to DQ24 on the micro.
The SDRAM should not care about these type of swaps, but are there any restrictions in the way that the FMC works that would stop this from working?
Thanks
