[Libre-soc-dev] c4m-JTAG dependency issues

Cole Poirier colepoirier at gmail.com
Fri Oct 9 23:11:39 BST 2020

On Fri, Oct 9, 2020 at 3:08 PM Luke Kenneth Casson Leighton
<lkcl at lkcl.net> wrote:
> On 10/9/20, Cole Poirier <colepoirier at gmail.com> wrote:
> > I just ran `python3 debug/test/test_jtag_tap_srv.py`, it prints the
> > following and stops, which to me, naively seems to 'work',
> this is because i did print statements not asserts on the io pads.

Aha, that makes sense.

> > but noting
> > your comment (https://bugs.libre-soc.org/show_bug.cgi?id=511#c6) of
> > "still not quite right: ioconn3.core.i is inverted. hm" I'm assuming
> > there's some ground truth we can compare against, what would that be?
> and thaaat's the cocotb test file that staf did.

Woohoo! We made it to the real work, thank you for all of your help!

> so now compare the sets and asserts and you'll see that the
> ioconn3.core.i is always inverted.


> realistically only looking at the gtkwave will tell what's going on,
> but it's a bit of a pig to interpret.

Cool, I'll take a look, and compare with the *text* of staf's test
instead of trying and failing to run it :)


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