231f21296f
This shows what is _actually_ different for f7. A couple of option bits, and a renaming of bit 7 of the status register, from Program Sequence Error to Erase Sequence Error. We keep the separate implementation of wait_for_last_operation, to meet the "suggestions" of the reference manual to insert a DSB instruction. Keeping the renamed bit/functions also requires us to keep separate implementations of the flag clearing functions