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 Hardware Debugger 1.5/2.1: Parallel Cable toggles PROG after Download. 
 
 Record #6545
Product Family:  Software 
 
Product Line:  M1 Graphical/General 
 
Product Part:  Hardware Debugger 
 
Product Version:  2.1i 
 
Problem Title: 
Hardware Debugger 1.5/2.1: Parallel Cable toggles PROG after Download.  
 
 
Problem Description: 
Urgency: Standard 
 
General Description: 
When programming an FPGA in Hardware Debugger through the parallel port, the program pin goes low af
ter configuration thus erasing the fpga. 
 
 
Solution 1: 
 
This problem can be fixed by setting the following environment variable: 
 
SET  XIL_HWD_PCAB_FIX=1 
 
Environment variables can be set in the autoexec.bat file for Windows 95/98. 
The exact line above can be added to the file using the program "sysedit". 
 
In Win NT right-click on the "My Computer" desktop icon, go to Properties, 
and select the Environment tab. 
The Variable is 'XIL_HWD_PCAB_FIX', Value is '1'. 
 
Reboot the PC. 
 
 
 
Solution 2: 
 
Disconnect the parallel cable after configuration.  This has worked when the program pin glitches se
veral minutes after configuration is completed. 
 
 
 
 End of Record #6545 - Last Modified: 10/07/99 09:17  |