[Libre-soc-dev] daily kan-ban update 16aug2020

Luke Kenneth Casson Leighton lkcl at lkcl.net
Sun Aug 16 17:57:47 BST 2020




* kicked litex around a lot and got nowhere.
* finally, daveshah suggested using litex DDR3 simulation

this at last allowed me to run a side by side microwatt-libresoc litex BIOS
Memtest which confirmed that there is a problem with libresoc.

only took 2 days to find that out...


* mmu.py review and running "python3 mmu.py" found a stack of issues.
codemorphed it.
* added litex sim.py "debug window" based on the pc, registers and memory
accesses are dumped.

this allows looking at the debug output for a certain function, to find
discrepancies between microwatt and libresoc, but without having to go
through tens of thousands of pages of debug output.

currently running, i will compare the logs later today.


crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

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