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AR# 14601

*Obselete* 4.2i iMPACT - The Lattice SVF Player will not program a Xilinx 18V00 PROM or 9500 CPLD from a 4.2i SVF file

Description

Keywords: Lattice, SVF, iMPACT, 18V00, PROM, CPLD, 9500

Urgency: Standard

General Description:
The Lattice SVF player will not program an XC18V00 or XC9500/XL/XV device with a 4.2i iMPACT SVF file. (However, 3.1i SVF files work successfully.)

Solution

This problem occurs because the Lattice player interprets the SIR and SDR instructions in a slightly different way than Xilinx devices do.

To correct the problem, add the following four lines to the very beginning of the iMPACT SVF file:

TRST OFF;
ENDIR IDLE;
ENDDR IDLE;
STATE IDLE;

This issue is fixed in 5.1i iMPACT
AR# 14601
Date Created 05/02/2002
Last Updated 10/01/2003
Status Archive
Type General Article