Transcription of AN4894 Application note - STMicroelectronics
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AN4894 Application note - STMicroelectronics
December 2021AN4894 Rev 51/401AN4894 Application noteEEPROM emulation techniques and software forSTM32 microcontrollers IntroductionEEPROMs (electrically erasable programmable read-only memories) are used for non-volatile storage of updatable Application data, or to retain small amounts of data in the event of power failure in complex systems. To reduce cost, an external EEPROM can be replaced by on-chip Flash memory, provided that a specific software algorithm is Application note describes the software solution (X-CUBE-EEPROM) for substituting a standalone EEPROM by emulating the EEPROM mechanism using the on-chip Flash memory available on the STM32 Series products listed in Table 1: Applicable products.
For further details, refer to Chapter 5.3: EEPROM emulation timing. 2. Example data for STM32L4 Series. ... as resets) have been considered when designing the Flash memory management ... Page 1 Page2 Page 3 ACTIVE ERASED ERASED VALID ACTIVE ERASED VALID VALID RECEIVE ERASED ERASED Page Transfer Completed with
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