Re: Avnet Technical Support Terrible!!!


Gavin wrote:
> Waage wrote:
> > Antti,
> >
> > Thanks for all your input.
> >
> > I have done as you suspected, and I have downloaded an evaluation
> > version of ChipScope.
> > And now I have one more datapoint. ChipScopePro can not find the JTAG
> > chain, but it can
> > find the USB box. It reports that a connection has been made to
> > Platform USB and then reports...
> >
> > ERROR: Failed detecting JTAG chain.
> >
> > So, at least at this point I am VERY suspecious a communication issue
> > from USB to JTAG.
> > Does anyone know if there's some way to snoop the communication inside
> > the Platform Cable?
>
> Avnet do seem to be basically useless.
>
> The problems I had with the last Avnet board were that, due to use of
> engineering sample silicon for the Flash to program the Xilinx, the
> download cable MUST NOT be plugged in at power-up; basically the power
> ramp to the flash is slowed down too much so the flash breaks the jtag
> chain.
>
> So, try powering the board up without the cable plugged in, then plug
> the cable in to the LX board.
>
> I hope this fixes your problem, coz I am about to try to start
> downloading to my LX60 board any minute now.

.

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