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AR# 25327

9.1i EDK - "JTAG chain configuration ........ERROR(0):"


In my design, PPC does not share the JTAG port with the JTAG port of the FPGA. JTAG signals of the PPC are connected to an external connector. When I try to connect to the PPC via XMD, it crashes with the following error:

"JTAG chain configuration


Device ID Code IR Length Part Name

1 00000000 0 UNKNOWN


This problem occurs with EDK 9.1 SP2/ISE9.1 SP3, but it works fine in EDK 8.2i.


To work around this problem, use following command in XMD:

connect ppc hw -configdevice jtagport cpu

AR# 25327
Date Created 09/04/2007
Last Updated 12/15/2012
Status Active
Type General Article