AN2014 datasheet(44/65 Pages) STMICROELECTRONICS

部件名	AN2014

功能描述	How a designer can make the most of STMicroelectronics serial EEPROMs

PDF	65 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

44 / 65 page

Software considerations

AN2014

44/65

DocID10701 Rev 10

Figure 38. Example of how to duplicate data safely

1. N = Page length (number of bytes defining a page);

Di = Data byte at page location "i" (i < N);

n =multiple of 4 (n < N).

5.4.3

Checksum and data redundancy

Combining checksums and data redundancy is the best strategy.

Applying the redundancy and checksum strategy to read-only data (2 or 3 copies with a

checksum byte for each data block) improves the EEPROM robustness and, with it, data

integrity.

5.4.4

Extra redundancy

Default backup parameters can also be stored in another non-volatile external or embedded

Flash memory. The micro should then have the ability to copy back the data in the EEPROM

when necessary.

Dn – 1

Reference Data

Duplicated Data

ai10923b

Rows or Pages

Columns

AN2014 数据表(PDF) 44 Page - STMicroelectronics