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AR# 882

*Obsolete* 4.2 MAKEPROM

Description

Keywords: internal error, 5200

Urgency: Standard

General Description:
When makeprom is invoked for 5k devices, it starts giving beeps with the following error message

..
...
INTERNAL PROGRAM ERROR (Please contact support personnel):
unpadbs: frame stop: frame 1 nframe 184 bit 0 of 4: pos 1168: expected 0, got 1
unpadbs: frame stop: frame 1 nframe 184 bit 1 of 4: pos 1169: expected 1, got 0
INTERNAL PROGRAM ERROR (Please contact support personnel):
....
...

Solution

This used to happen with the Pre-release for the xc5200, but seems to be fixed in XACT step v6.0/5.2.

The code which unframes a bitstream is not correctly seeing that CRC was enabled in this .bit file, and therefore thought that the fixed pattern of frame stop bits was expected. Now that CRC is on by default for 5200 devices this showed up.

To work around this issue, disable CRC in makebits.
AR# 882
Date Created 08/31/2007
Last Updated 09/26/2005
Status Archive
Type ??????