iMPACT doesn't correctly recognize Spartan-3 parts in the chain, or the Spartan-3 part fails to configure with:
"ERROR:iMPACT 1353 - ACE entry FRAME_SIZE not found..."
iMPACT incorrectly recognized 3S50 devices as unknown devices.
iMPACT incorrectly recognized 3S4000 devices as 3S200.
iMAPCT incorrectly recognized 3S2000 devices as 2S2000.
The incorrect recognition issue for 3S50/4000 has been fixed in the latest 6.1i Service Pack available at:
The first service pack containing the fix is 6.1i Service Pack 3.
The incorrect recognition issue for 3S2000 will be fixed in 6.2i.