We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 14193

5.1i iMPACT - XC18V01/512/256 SVF programming fails


Urgency: Hot

General Description:

When I create XC18V01/512/256 SVF files with the Operation -> Program menu item and the "Erase before Programming" option, the XC18V01 fails to program. (The XC18V01/512/256 is still blank after I apply the SVF.)


This problem is fixed in the latest 5.1i Service Pack, available at:

The first service pack containing the fix is 5.1i Service Pack 3.

Alternately, there are two possible ways to work around this problem:

Work-around 1 (preferred):

Generate an SVF file using the following sequence:

1. Operation -> Erase

2. Operation -> Program (Do not select "Erase before programming")

Work-around 2:

Add the following RESET instruction between the Erase CONLOAD and Program ISP-ENABLE instructions:


AR# 14193
Date Created 08/29/2007
Last Updated 12/15/2012
Status Active
Type General Article