Forum Discussion
New ContributorJtag chain broken
When the Jtag debugger is used for debugging, a TDI problem is displayed, and the following information is displayed "Jtagconfig -d".
Unable to read device chain - JTAG chain broken
Captured DR after reset = (0343B0DD)
Captured IR after reset = ()
Captured Bypass after reset = (0)
Captured Bypass chain = ()
How to solve this problem. Thanks
4 Replies
Farabi_AlteraRegular Contributor
Hello,
To start debug, we need more information from you:
- Is this board you designed? or is this devkit?
- how many boards you see this failure?
- have you change the USB Blaster II programming cable and see if this can solve the issue?
regards,
Farabi
NurAiman_M_IntelSuper Contributor
Hi,
Can you also share the screenshot of the error?
Regards,
Aiman
- NurAiman_M_Intel
Hi,
Do you have any update for this case?
Regards,
Aiman
- NurAiman_M_Intel
We do not receive any response from you to the previous answer that I have provided. This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you
