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AR# 31281

10.1 BitGen, Spartan-3A/N/DSP - 1532 programming file (.isc) is generated incorrectly


When I program my Spartan-3A/N/DSP device in iMPACT, I see the following message:

"INFO:iMPACT:1010 - The size of the data read from the isc file 64 is greater than the maximum expected size of data 19"

DONE does not go High, INIT does not go Low, and my device does not start up.


The issue is that the ".isc" file is generated with the wrong array element size. This should be 16 instead of 64.

This issue is resolved in ISE 10.1 Service Pack 3. If a work-around is needed before this release, please contact Xilinx Technical Support:


AR# 31281
Date Created 07/08/2008
Last Updated 12/15/2012
Status Active
Type General Article