We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 18952

6.1i/6.2i iMPACT - The XCF16P appears as an "Unknown Device" when I attempt an "Initialize Chain" operation


General Description:

In 6.1i iMPACT, when performing an "Initialize Chain" operation on a JTAG chain that contains a XCF16P device, the XCF16P appears as an unknown device, and the following message occurs:

"Identifying chain contents ....

The part does not appear to be Xilinx Part.

INFO:iMPACT:501 - '1': Added Device UNKNOWN successfully."


This problem does not prevent you from performing any JTAG operations on the device. To proceed, you can assign the unknown device the appropriate ".mcs" or ".exo" file, and then perform any Program, Verify, or IDCODE operations as usual.

This problem will be fixed in the 6.2i Service Pack 1 software release.

AR# 18952
Date 12/15/2012
Status Active
Type General Article