Hi all, I have two questions regarding the OPB usage.1) why is it the microblaze connects to the IOPB port to the OPB bus when running from internal memory (BRAM) ? the program runs only from the ILMB isn't it? 2) PLB-OPB bridge , the PPC405 reference guide says that the PLB should be used for fast bus transactions and that the OPB is to be used for slower peripherals (GPIOs/UART etc.). My question is as follows - If I'm using a PLB-OPB bridge the data from/to the OPB will still go trough the PLB bus so how come it is says
the the OPB usage takes some load of the PLB bus ? Thanks, Mordehay.