cpld downloading problem

[swapnil_vlsi]

i am doing downloading to cpld xc95108-20tq100.
i get the file .jed which to be downloaded to cpld.
i implementded the jtag cable as per the xilinx ........schematics..
then i Erase the program complete successfully, then
program get downloaded Programming completed successfully.
but then i verify the code it get failed shows an error
Verification failed'1': Verification terminated
why so happend is it hard ware problem or else some thing............

 

[muralicrl]

Hi,

You please check the voltage level of the CPLD cable and the cable. If they are not compatible then you may get the problem like this. I experienced this.


In case you need more detail, don't hesitate to contact me.

regards,

N.Muralidhara
MSRS, CRL-BEL