Hi Dan,
Dan Miner wrote:
The "simple" thing I need is the software. :-)
I just looked at the link Chris posted.
(see http://www-s.ti.com/sc/psheets/slaa149/slaa149.pdf)
I may be able to write my own software for this. Hmmm...
I was hoping I could get someone (Steve Underwood?) to answer
and say it is already supported with the current tools or that
it would be a trivial change and would be released soon.
Steve - could you please tell me if it is at least possible or
not with the public documents from above? (no NDA) If "N"
deviced are daisy chained together, can they be programmed in
one big chain? Does TDO always reflect a copy of TDI delayed
by X TCK cycles?
If you want something like this, I suggest you start from the code you
will find in CVS for a programmer based on SLAA149 (look in the
serJTAGfirmware section). This currently programs just one device.
However, it would not be hard to turn it into a gang programmer for a
reasonably large number of devices. How many? Well, I'm not too sure.
That would depend on how many inputs the outputs can reasonably drive. I
don't know that off hand, but 8 must be OK as TI do that many with their
gang programmer.
If you implement something like this, and would like to contribute it
back, we would be very happy to have a gang programmer in our CVS :-)
Regards,
Steve
