^

AR# 33704 12.1 EDK - Attempting to connect to XMD results in "ERROR:EDK:970 - Cse lookup device returned irlen of 0..."

When I attempt to connect to XMD, an error similar to the following occurs:

"ERROR:EDK:970 - Cse lookup device returned irlen of 0. ID code is 00000000000000000000001111010011 (0x3d3)"

How can I resolve this issue?
This error occurs if there is a non-Xilinx device in the chain. Information about non-Xilinx devices need to be included in the "idcode.lst" located in the following location:

$ChipScope_install\xilinx\data\chipscope\idcode.lst) or ($ISE_Install\data\chipscope

Another work-around is to add the information about the devices in the chain by following the procedure in the XPS GUI, as follows:

Debug > XMD Debug Options > JTAG Properties > deselect the "Auto-Discover JTAG Chain Definition" and "Add Device" options.
AR# 33704
Date Created 10/29/2009
Last Updated 02/13/2013
Status Active
Type General Article
Feed Back