STM32 Readme

rusEFI is known to work on these stm32 chips:

chip	Frequency	Ram	Flash	Notes	Package notes
F407	168 MHz	192 Kb	1M	most popular rusEFI chip
F469	180 MHz	384 KB	two banks of flash should allow storing settings without execution pauses.	Prometheus board.
F767	216MHz	512 KB	1M	Used on MicroRusEFI
F429	180MHz	256 KB	2MB	144 pin used on Proteus	pinout

Trying to get rusEFI running on:

chip	Frequency	Ram	Flash	Notes	Package notes
F746	216 MHz	320 Kb	1M	.		pinout
F767	400 MHz	1024 KB	2M	..		pinout