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AR# 17919

5.2is3 iMPACT- Using IBM Thinkpad, Cable autodetection (connection) fails for Digilent's Digilab XC2 (CoolRunner-II) demo board


General Description: 

When using IBM ThinkPad (Laptops), 5.2i and 6.1i iMPACT are unable to find the parallel cable provided with the Xilinx Digilab CoolRunner-II demo board.


This problem is caused by the resistor between pin 8 and 11 of the DB25 connector and ThinkPad's parallel port driving strength.  


To work around this issue, simply turn the board around and short pin 8 and 11 or pin 8 and 12 of the DB25 connector (parallel port).  


A detailed drawing can be found on the Digilab's user manual.  

http://www.digilentinc.com/assets/documents/xc2_RM.pdf  Page 4 figure 4.

AR# 17919
Date 05/15/2014
Status Archive
Type General Article
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