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AN229843 - Memory Mapped Access to SPI F-RAM

This application note compares classic EEPROM/Flash style access with fully memory mapped access in the context of SPI F-RAM devices. It discusses the advantages and disadvantages of both methods. Linux on i.MX8 is used as a test and bench marking platform to shed some light on the performance aspects. The results show that memory mapped access has clear performance benefits and simplifies the application code compared to the classic serial EEPROM/Flash access method.

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Mar 11, 2021