Listing the JTAG chain through XSDB can help identify hardware connectivity issues. To perform this operation you use the "jtag targets" command. Below is a sample session on how to perform this operation on the first cable detected.
connect -host <ip-or-hostname>
jtag targets -set -filter {level == 0}
jtag targets -filter {level == 1}
Posted by Cuauhtemoc to Xilinx (2018-11-07 17:18)