Re: [Openocd-development] Fwd: [PATCH] Driver for USB-JTAG, Altera USB-Blaster and compatibles

[David B. <da...@pa...>]

On Monday 21 December 2009, Øyvind Harboe wrote:
> You can't debug XScale without for one. Perhaps, eventually,  you can
> limp along without it, but I would *definitely* prefer a dongle that supported
> srst and trst.

So with thise one, you'd rig some kind of adapter and then
use a customized [looks it up] jtag_init method that
understands how to trigger those two signals.

I know that I was completely unable to get a PXA255 to even
start up with OpenOCD without a custom jtag_init...


Remember most TI chips use JTAG adapters that don't include
SRST at all.  I'm sure it's a complete coincidence that the
first few generations of Stellaris chips ended up needing
to write chip registers to reset the chips, instead of SRST;
there's no way that was a factor in TI buying Luminary.  ;)

- Dave