[Libre-soc-bugs] [Bug 511] Add a test of IO pins to debug/test/test_jtag_tap.py

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Tue Oct 20 21:00:30 BST 2020


--- Comment #8 from Cole Poirier <colepoirier at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #6)
> still not quite right: ioconn3.core.i is inverted.
> hm

Any tips on how I should start debugging this to find the source of the
error/why the ioconn3.core.i signal is inverted? Should I familiarize myself
with the JTAG spec? I started trying to debug this one day last week and was
looking through the code in debug and debug/test, as well as trying to figure
out the correspondence between your code and staf's c4m-jtag code using the
asserts as reference points.

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