Serial EEPROM model identification method and device and storage medium

Abstract

The invention discloses a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) model identification method. The method comprises the following steps: reading and storing last byte dataof a first model; writing the last byte data of the first model as first byte data; reading and storing second byte data of the first model; reading and storing first address data of a first model; judging whether the second byte data is equal to the first byte data and the second byte data is not equal to the first address data or not; if so, writing the third byte data of the first model; reading and storing the fourth byte data of the first model; reading and storing the second address data of the first model; judging whether the fourth byte data is equal to the third byte data and the fourth byte data is not equal to the second address data or not; and if so, writing the read and stored last byte data of the first model, the first model being the model of the serial EEPROM. By adoptingthe method and the device, the model of the serial EEPROM can be correctly and effectively identified.

Description

technical field [0001] The invention relates to the field of model identification, in particular to a serial EEPROM model identification method, device and storage medium. Background technique [0002] EEPROM can randomly access and modify any byte of data, it will not be lost when power off, it can be repeatedly erased and written 1 million times, and has high reliability. Compared with other memories, because of its structure, the circuit structure is complex, and the capacity is usually small, ranging from tens of bytes to hundreds or kilobytes. In ordinary electronic products, serial EEPROM is usually used to store data information with little space and frequent modification. [0003] The traditional serial EEPROM communication data does not include its own capacity, model and other identification information. Different brands and different models of serial EEPROMs will have slight differences in communication, making it incompatible with multiple serial EEPROMs of diff...

AI Technical Summary

Problems solved by technology

[0003] The traditional serial EEPROM communication data does not contain its own capacity, model and other identification information. Different brands and different types of serial EEPROMs will have slight differences in communication, making it incompatible with multiple different types of serial EEPROMs for replacement.

Currently, there is no valid identification method for serial EEPROM models

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