When programming 9500xl and XPLA3 devices in concurrent mode with "read protect" selected, I see the following error in iMPACT 5.2.01i:
"Unsupported command - setPromOptionBits invoked
, Please make sure that the command is supported on this device.
PROGRESS_END - End Operation.
Elapsed time = 1 sec."
Disable concurrent mode and program in sequential mode.
In iMPACT, go to Edit -> Preferences and deselect the Concurrent Mode (CPLD & PROM) box.
This issue is fixed in 6.1i iMPACT.