Cyclone VE starts config from N25Q then fails midstream

Good thought that the dev board might not be laid out for high speed config. I tested again with the only change being config clock set to 12.5MHz (slowest option in Quartus). Scope capture confirms that the clock speed does not go above 12.5MHz but unfortunately I see the exact same issue, the config fails a few dozen usec into the datastream. Just as a sanity check I recompiled the default program that came with the board with the slow clock (testing that and my quartus install) and ran it on my unmodified board as a comparison. The unmodified board boots successfully at 12.5MHz.

You mentioned that you built a project with the Micron flash, do you recall if it requires any specific options in Quartus? I disabled ID Check when building my files but I haven't done anything else. Is there maybe an app note from Micron comparable to the Spansion/Cypress notes?

Thanks

Simon