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Altera_Forum
Honored Contributor I
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[JTAG] zrTech Cyclone IV Board JTAG Chain issues

Hello Forum, 

 

I'm using: 

- Cyclone IV e3 

- ALTERA USB Blaster Rev. C 

- Quartus Prime Lite 

 

When I hit Auto Detect in the Programmer, it says there is something wrong with the JTAG chain and takes me to the debugger. 

Next I hit "Test JTAG Chain" and the session log is attached. 

 

I can't understand what I'm doing wrong - I've checked the IDE cable and that seems fine. I've checked the power pins and they are correct. Please help. 

 

Session log: 

 

!Error: JTAG chain problem detected 

!Error: TDI connection to the first detected device UNKNOWN_FFFFFFFD might be shorted to GND 

!Error: The TCK and TMS connections to the device before the first detected device UNKNOWN_FFFFFFFD might have a problem 

!Info: Detected 2 device(s) 

!Info: Device 1: UNKNOWN_FFFFFFFD 

!Info: Device 2: 10CL006(Y|Z)/10CL010(Y|Z)/..
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2 Replies
Jrynk
Beginner
124 Views

The same problem. Did you fix that and how?

DAlth
Beginner
124 Views

Did you guys find a solution? Experiencing the same problem here.

Reply