Re: XC9500 JTAG Initialize problem



I was able to program my first XC9572 using a parallel jtag and ISE8.1.
Of course ISE8.1 crash often but you can live with that (it does usually when u exit a tool ... )



Benjamin Todd wrote:
Whereabouts are you using the HC125 devices? Are you sure you haven't inadvertantly inverted the signals?
A schematic or pinout would be helpful... (post it online somewhere and link to it)

Like Antii says, a quick solution is potentially an RC to remove the glitches, but it would nice to know exactly what's going on.

BTW: You should try moving away from the old foundation software... but I guess your cable isn't supported for newer versions... In any event I use a Parallel Cable IV with the XC9500, still using ISE7.1, will upgrade to 8 when it settles down. It works very well.

Ben

"Chelam" <scpadala@xxxxxxxxx> wrote in message news:cOednX_YcKEqlJzZnZ2dnUVZ_sOdnZ2d@xxxxxxxxxxxxxxx

Hai

XC9500 is not initialized and .log file directing me to look for hardware
config problems.
I have Connected Parallel cable and using JTAG interface(assembled). All
of JTAG Connections and VCC, GND connections were made properly
The Part Iam tring to use :PLCC84-15.
The software ( ISE3.3i) has been tried on both win-98 and
Win-2000.Hardware
working with Pentium IV processor.

When observed on scope, I have seen glitches on TDI TDO and TCk pins.As
suggested in Parallel III cable, I am using HC125 ICs. How to kill them.

Any suggestions!

Thanks
Chelam





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