XMD crashes on EDK 9.1i

Hello Group Members

I am trying to build a simple system consisting of PowerPC405, JTAG,
UART, OPB DDR controller, and 16MB External DDR memory on a HiTech PPC
board. No on-chip BRAMs.  I use EDK 9.1/ISE9.1 versions.

If I try to launch XMD from EDK GUI, it prints messages detecting the
programming cable and quits without printing any error messages.

I tried invoking XMD from cygwin shell and used the command ' connect
ppc hw', it detects the JTAG chain, prints the ID code and then quits
printing 'ERROR(0):'. I have no idea what might be wrong here.

Any help is very much appreciated.

Interestingly, If I use only on-chip BRAM and no external memory, i
can print messages to UART by downloading code through XMD.

Thanks
swamy

On Jul 26, 1:42 am, swamy_digital <swam...@gmail.com> wrote:
> Hello Group Members
>
> I am trying to build a simple system consisting of PowerPC405, JTAG,
> UART, OPB DDR controller, and 16MB External DDR memory on a HiTech PPC
> board. No on-chip BRAMs.  I use EDK 9.1/ISE9.1 versions.
>
> If I try to launch XMD from EDK GUI, it prints messages detecting the
> programming cable and quits without printing any error messages.
>
> I tried invoking XMD from cygwin shell and used the command ' connect
> ppc hw', it detects the JTAG chain, prints the ID code and then quits
> printing 'ERROR(0):'. I have no idea what might be wrong here.
>
> Any help is very much appreciated.
>
> Interestingly, If I use only on-chip BRAM and no external memory, i
> can print messages to UART by downloading code through XMD.
>
> Thanks
> swamy

I had an issue where I could not download w/ 9.1 but could w/ no
problems under 8.2. It seemed that the xmd.ini file was (or wasn't)
setting up some addresses properly. You may want to check the contents
of your xmd.ini file (if it exists) and make sure that everything
makes sense. It sounds like the xmd.ini file probably has some
addressing setup to access the BRAM from your other project and since
you don't have BRAM in the current project its becoming unhappy when
it tries to setup/access something.

-- Mike