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AR# 16140

5.2i CPLD iMPACT CoolRunner-II XC2C384 - Global Clock 1 (GCK1) fails to clock registers on device

Description

General Description:  

Functional and timing simulation pass, however registers clocked by Global Clock pin 1 (GCK1) do not toggle.

Solution

There is a bug in the iMPACT programming tool that prevents the proper programming of the GCK bit. As a result, registers connected to GCK1 are unresponsive on the device.  

 

This problem is fixed in the latest 5.2i Service Pack available at: 

http://support.xilinx.com/xlnx/xil_sw_updates_home.jsp
The first service pack containing the fix is 5.2i Service Pack 1.

AR# 16140
Date Created 09/03/2007
Last Updated 05/08/2014
Status Archive
Type General Article