@marcan42 let's say I want to reimplement an USB device in Verilog, any suggestion on simulating it in Linux userspace so that I can verify drivers work with it? usbip or is there something better?
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maybe it's overkill
This does sound like overkill. Why not just use a microcontroller? With an FPGA you also need to find yourself a USB PHY and unless you put in a small CPU core anyway implementing USB state machines in hardware is ugh.
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Oh, I was going to do everything except FIFOs in software, on a real board it'd be a CYP68013A anyway
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usbip <--> (glue software) <--> verilator running your verilog design? if so, you can probably reuse things from: https://github.com/enjoy-digital/litex/tree/master/litex/build/sim …
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