Data Sheet

4/27/2018 OpenCR1.0

http://emanual.robotis.com/docs/en/parts/controller/opencr10/ 34/50

OpenCR Test - PWM

7. 5. EEPROM

It is the EEPROM library test of OpenCR board.

OpenCR does not have EEPROM memory, so it emulates a part of flash memory built in

STM32F746 into EEPROM. The method of emulation was provided by ST as an example.

The area used as EEPROM is 0x08010000 ~ 0x08020000 as shown below. Two sectors are used.

32 bits are used to store one data, the lower 16 bits are the data to be stored, and the upper

16 bits indicate the address of the corresponding data. When storing data, it is always stored in

the new location. When you use one page while saving the data, only the latest values from the

saved page are copied to the new page and the existing page is deleted. As a result, the

number of flash memory erasures is reduced, thereby increasing the write-through life.

OpenCR1.0