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AR# 43142

ChipScope - Instruction Register Length for Device Index <*> contains an invalid value

Description

Ihave non-Xilinx devices in my JTAG chain. iMPACT can download the bitstream correctly.

When I am performing Open Cable/Search JTAG Chain in the ChipScope Pro analyzer, the following error occurs:

Solution

You shouldenter the IR Length for any non-Xilinx devices in the chain in the ChipScope Pro Analyzer tool. If you do not enter the IR Length, the analyzer cannot set the JTAG offsets correctly and will not be able to identify the devices or ChipScope cores.

For information on how todetermine the IRLength of a device, refer to (Xilinx Answer 10850).

AR# 43142
Date Created 07/18/2011
Last Updated 12/15/2012
Status Active
Type General Article
Tools
  • ChipScope Pro - 13.2
  • ChipScope Pro - 11.3
  • ChipScope Pro - 11.4
  • More
  • ChipScope Pro - 11.5
  • ChipScope Pro - 10.1
  • ChipScope Pro - 10.1 sp1
  • ChipScope Pro - 10.1 sp2
  • ChipScope Pro - 10.1 sp3
  • ChipScope Pro - 11.1
  • ChipScope Pro - 11.2
  • ChipScope Pro - 12.1
  • ChipScope Pro - 12.2
  • ChipScope Pro - 12.3
  • ChipScope Pro - 12.4
  • ChipScope Pro - 13
  • ChipScope Pro - 13.1
  • Less