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