2009/6/10 Tiago Rogério Mück
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Hi all,
I'm working on some experiments using the USRP2, and the 32 Kb available for the firmware won't be enough for my experiments. I'll need to modify the FPGA code so I can use the 1 MB SRAM for both instructions and data for the aeMB, but I'm a bit lost on how I can do this modifications.
I looked the code and came to some conclusions about what needs to be done:
1 - Change the memory map
- Change the RAM space to 0 - 1 MB
- Update the mapping of the buffer poll and the peripherals
2 - Change the logic inside the sys_ram block to forward access to addresses beyond 32 K to the external SRAM
3 - Change the ram_loader parameters so it can load the entire firmware.
Could someone tell me if I'm going to the right direction? I will be very grateful for any hint you can give me.
Thanks