10-13-2010 08:42 AM
is there any way to check whether a device is faulty? I am experiencing some very strange problems that I cannot explain in any other way.
The board in question is a ML402 (Virtex 4 SX35) Eval. Platform. Some of the I/O pins on the expansion header appear to be dead so I suspect there might be other problems as well.
10-13-2010 09:18 AM
Use a JTAG scan program to drive the pins to known logic levels and then probe the pins.
iMPACT is NOT the JTAG scan program you need.
10-14-2010 08:40 AM
Ok, which (Linux compatible) JTAG scanner would you suggest?
I'm sure the Google can tell you whether JTAG tools that run under Linux exist.
What can use to find out whether there are damaged CLBs in the FPGA? Thanks.
Usually if a CLB is damaged the bitstream won't load and/or you'll have excessive current drawn from the power supply.