[Libre-soc-dev] Litex-OPENTitan clarification

Luke Kenneth Casson Leighton lkcl at lkcl.net
Sat Oct 3 12:56:35 BST 2020

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

On Sat, Oct 3, 2020 at 12:13 PM Luke Kenneth Casson Leighton
<lkcl at lkcl.net> wrote:

> adding a test of IO pins to debug/test/test_jtag_tap.py.  i *think*
> these are "standard-defined JTAG behaviour".  need to work out the
> code (or find IEEE JTAG documentation)
> some commands here:
> https://gitlab.com/Chips4Makers/c4m-jtag/-/blob/master/c4m/nmigen/jtag/tap.py#L344
> and here you can see the Muxes being created:
> https://gitlab.com/Chips4Makers/c4m-jtag/-/blob/master/c4m/nmigen/jtag/tap.py#L443

found this, written by staf:


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