stm32f1xx EEPROM emulation (#3914)
* * Add stm32f1xx EEPROM emulation
* Fix eeprom update compare bug
Squashed commit of the following:
commit b8f248ae08cec0cd81ecbb8854d9b39221d4d573
Author: hsgw <urkwtky@gmail.com>
Date: Sat Sep 15 19:13:48 2018 +0900
fix EEPROM_update wrong compare
commit d4ed4e6ea864e967a3e17f7edee4b0c3b4a25541
Author: hsgw <urkwtky@gmail.com>
Date: Sat Sep 15 17:43:47 2018 +0900
eeprom fix initialization define
commit b61aa7c04d70c64df3416d63e5da08b73b6053af
Author: hsgw <urkwtky@gmail.com>
Date: Sat Sep 15 16:33:40 2018 +0900
maybe working
* Fix FLASH_KEY defines