Boot ROM

An on-chip boot ROM exists to supply the CPU with an initial vector table at 0xffff0000.

address	size	description
0x7fff0000	0x1000 (4k)	Boot ROM mirror 1
0xffff0000	0x1000 (4k)	Boot ROM mirror 2, initial vector table

Known versions

SHA256	seen on chips
7c083b68c817435309f535ec4c7f597a4683e8ffbdb128a4471854077a88a7ed	WPCM450-R A3

TODO: collect more bootrom versions

Boot flow

TODO: trace the bootloader's actions