Error: Can't access JTAG chain

[Aravindpb]

using cyclone v quartus prime lite 16.0

I has been trying to program FPGA but the code is not dump showing some error like can't access JTAG

But i tried in another fpga board code have dumped successfully

i hope there is no problem in the side of JTAG , I don't know where the problem is coming

please let me know where the bug is receiving

Thanks & Regards

Aravind p

[AnandRaj_S_Intel]

Hi @Aravindpb​ 

The issue may be due to

1. JTAG header pins. Check your jtag header pins for ground short or misplacing it.
2. Power supply. check the power supplies and its connection are following the recommended values as stated in the respective device handbook. 
3. pull-up & pull-down connected to the JTAG pins are following the recommended values as stated in the respective device handbook.

Check the link which address the issue

https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/solutions/rd03312011_647.html

Let me know if this has helped resolve the issue you are facing or if you need any further assistance.

Best Regards,

Anand