Re: NetBSD Project JTAG kit and Guide

Brook Milligan <[email protected]> Sat, 21 Jun 2025 10:28:23 -0600
Newsgroups gmane.os.netbsd.devel.embedded
Message-ID <[email protected]>
> On Jun 19, 2025, at 09:40, David Barrass <[email protected]> =
wrote:
>=20
> Please excuse the long and rambling email but I would just like to run
> this pass you.

=E2=80=A6 snip =E2=80=A6

> Any writeup that I would do would mention this and run through =
building
> a modified NetBSD kernel.
>=20
> I could continue but this email is long enough already!!
> (I have a TS7250 and a TS7200 which IS a supported platform but no =
JTAG
> box header!!)
>=20
> So, drop the idea or is this of interest?

I=E2=80=99m not exactly certain what =E2=80=9Cthe idea=E2=80=9D is here, =
so it=E2=80=99s a bit hard to respond specifically.

I will say, however, that better information on using JTAG with embedded =
boards on NetBSD would be great from my perspective.

I have some BeagleBone Black boards and have wondered about using the =
JTAG connection, but so far it=E2=80=99s a bit beyond my knowledge.  =
More information could change that, though.

Perhaps you know this already,  but openocd is available in pkgsrc and =
gdb is a standard OS tool, so setting up a NetBSD host to use it should =
be easy.  I don=E2=80=99t know what special USB driver support is =
required for the hardware adapters, though; I suppose that is what you =
are really talking about.  It would be great if the NetBSD drivers =
worked well with some (many?) JTAG chips.

Even if you document clearly what works and what doesn=E2=80=99t, =
perhaps someone with more knowledge of the drivers could help.

Cheers,
Brook=