i got a problem with the Spartan 3E starter kit from Xilinx, no matter what Mode pins are set for, the DONE LED is always turned on when i power on the board. I cannot connect to the board via JTAG pin headers either. All the voltages are correct. What could be the problem ? any thing i can do to debug it ? i have another Spartan 3E board and it works fine.
Spartan3E startup problems
Apr 12, 2008
5 Replies
the LED is on even though i hold PROG_B low
Check shorts. Check power voltages. Check the schematics.
all checked
when measured all the signals are grounded, including the unconnected jtag signals (which should be pulled high from internal pull ups) .. can the FPGA be damaged somehow ?
ter
ers
ny
Hi, Did you try to read the device in JTAG chain ? Or Try put the FPGA in Master Serial Mode and check if it drives "CCLK" pin to see if the device is alive !
I still think that the issue lies with some sort of short circuit on board. Recheck the schemetics and if possible, upload it some where. So that others could see those and give their comment.
Hope this helps
/MH
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required