[Milkymist-devel] Mico32 migration

[Sébastien Bourdeauducq]

Hi,

I just finished migrating and debugging the design with the Mico32 soft 
processor (instead of AEMB).

I did not do a lot of testing yet, but it seems that the software is running 
much faster now (AEMB was only running at 50% speed because of the threading).

The only trick was that the processor does not work when configured for using 
direct mapped caches while it works perfectly when switching to 2-way set 
associative caches - bug in Xst or Mico32?!

Also, synthesis with ISE 11 uncovered a problem with the DCMs that generate 
the SDRAM clock - the FACTORY_JF parameter was incorrect and that could be the 
source of the problems seen on some boards.

Sébastien