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AR# 14137

*Obsolete* 4.2i iMPACT - 9500XL SVF files generate incorrect mask values, causing a TDO Mismatch

Description

Keywords: 9500, SVF, mask, TDO

Urgency: Standard

General Description:
4.1isp3 and 4.2i iMPACT generate 9500XL SVF files with incorrect mask values. This causes a TDO mismatch when the SVF file is played.

For example:

Last lines of XC9536XL program SVF 4.2i (WRONG):

SDR 34 TDI (0035d00003) ;
RUNTEST 10000 TCK;
SDR 34 TDI (0035d00003) TDO (0000000001) MASK (0000000003) ;

Last lines of XC9536XL program SVF 3.3WP8.1 (CORRECT):

SDR 34 TDI (0035d00003) SMASK (03ffffffff) TDO (0000000002) MASK (0000000000) ;
RUNTEST 50000 TCK;
SDR 34 TDI (0000000001) SMASK (03ffffffff) TDO (0000000001) MASK (0000000003) ;

Solution

This problem is fixed in the latest 4.2i Service Pack, available at:
http://support.xilinx.com/support/techsup/sw_updates
The first service pack containing the fix is 4.2i Service Pack 2.
AR# 14137
Date Created 03/08/2002
Last Updated 09/26/2005
Status Archive
Type General Article