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5,404 Views
Registered: ‎04-16-2014

VGA interface problem

I have using Spartan 3AN FPGA with Xilinx IDE 13.4.

 

I am working with VGA and displaying colors on the monitor. It worked fine Yesterday.

 

1. But when I remove the VGA male connector from the female port in the FPGA , I can still see the red led light glow for for the connection indication on the VGA.

 

2. Now , After this,  I am getting this error

 

         iMPACT:923 - Can not find cable, check cable setup !

 

 

   I am not able to see the JTAG logo when i do a scan chain in the Impact, I tried to unplug and plug the cable. But still it shows the same error.

 

 

I don't know what is the ploblem , If you have faced this problem help in solving this issue ..

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2 Replies
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Xilinx Employee
Xilinx Employee
5,399 Views
Registered: ‎08-01-2008

Re: VGA interface problem

I believe this is the configuration issue rather than VGA interface issue.

 

Please do power cycle for your FPGA board  i.e switch off the board and restart again

 

Check with other bitstream file .

 

Here is one related discussion

 

http://xlnx.lithium.com/t5/Spartan-Family-FPGAs/problem-with-VGA-driver/td-p/57997

 

 

Thanks and Regards
Balkrishan
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Xilinx Employee
Xilinx Employee
5,381 Views
Registered: ‎07-11-2011

Re: VGA interface problem

Hi,

 

In many cases it was a set up issue,  you haven't mentioned the SW versions.

I would suggest you to use latest ISE and try re-installing JTAG drivers

 

Please check below links and try if one of the solutions work for you

 

http://www.xilinx.com/support/answers/30184.html

 

http://forums.xilinx.com/t5/New-Users-Forum/WARNING-iMPACT-923-Can-not-find-cable-check-cable-setup/td-p/223455

 

 

Hope this helps

 

Regards,

Vanitha

 

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