UPGRADE YOUR BROWSER

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!

Page Bookmarked

AR# 50903

ChipScope Pro - When using the Digilent USB/JTAG cable in Analyzer, the default 10 MHz cable speed causes an error message

Description

There is a known issue with the ChipScope Analyzer tool when using the Digilent USB/JTAG cable with the ChipScope IBERT cores. If the cable is used with a cable speed faster than 3 Mhz, an error message similar to the message below will occur:

ERROR -Device 1 Unit 1_0: null: System clock is not running; JTAG Scan Rate is set to "Manual Scan".
ERROR - Device 1 Unit 1_0: GTX_X0Y0: System clock is not running; JTAG Scan Rate is set to "Manual Scan".

Solution

When using the ChipScope IBERT core with the Digilent USB/JTAG cable, you must set the cable speed to a frequency no more than 3 MHz.
AR# 50903
Date 02/18/2013
Status Active
Type General Article
Tools
  • ChipScope Pro - 14.2
  • ChipScope Pro - 14.1