AR #33295 - iMPACT - Spartan-3AN FPGA - ERROR:iMPACT:999 - Selected device(s) does not fit into the current Prom device(s).

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iMPACT - Spartan-3AN FPGA - ERROR:iMPACT:999 - Selected device(s) does not fit into the current Prom device(s).

AR#	33295
Topic	Config-iMPACT
Last Modified	2009-08-18 00:00:00.0
Status	Active

Description

Keywords: 11.2, 11.3, 11.4, 12.1, PFF, S3AN, spartan-3an, mcs, configuration

When I try to generate a PROM file for my Spartan-3AN FPGA in the iMPACT PROM File Formatter, I see the following error:

ERROR:iMPACT:999 - Selected device(s) does not fit into the current Prom device(s).

How do I generate a PROM file with multiple revisions for my Spartan-3AN FPGA?

Solution

The addressing scheme has been set to Power of 2 by default in iMPACT. The non Power of 2 flash address space becomes slightly larger and iMPACT is erroring out saying the PROM is too large. To work around this issue you can use the Promgen command line. An example command line is:

promgen -w -p mcs -c FF -o <path>/<PROM File Name> -s 128 -u 0 <path>/<bit file name>.bit -u 10000 <path>/<PROM file name>