on Wed, Apr 14, 2004 at 11:01:22PM -0400, Joshua Wise wrote:
> If you are looking to get started writing a JTAG tool, check out module
> debrick from CVS. It has code from Spyro and I that would be useful for
> debricking trashed devices. (He has bsrflash - boundary scan, which is
> probably unhelpful to you, as NAND isn't hooked directly to your CPU, but
> with some hacking, you could probably make it talk through the HAMCOP, and
> I've got fastjtag, a client-side set of utilities that allows you to load
> 4kbytes of code into the device's instruction cache as long as you have a
> stub on there already.)
>From what Bas posted the other day, it sounds like HAMCOP's jtag
pins are brought out to the same header as those for the CPU. So you
could use boundary scan on the asic to program in the initial stub if
necessary.
p.
Received on Thu Apr 15 09:32:33 2004
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