Swd #20
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kingofpayne
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fpga-arch/bsv/SWD.bsv
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| // ONLY do something if there is a valid command registered, and if | ||
| // the user is not currently writing to some register. | ||
| rule do_idle ((state == IDLE) && (bus_write == 0) && isValid(cmd)); |
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I think bus_write == 0 should not be in the condition here. As long as cmd is valid, the SWD peripheral can start working.
In particular, the host may be talking with another Scaffold peripheral at the same time, and this shall not prevent the SWD from working.
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This adds a SWD controller to the FPGA architecture, and exposes it through the python API.