ATSAM4LS4BA-AU 查看數據表（PDF） - Atmel Corporation

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ATSAM4LS4BA-AU

ATSAM ARM-based Flash MCU

Atmel Corporation 

ATSAM4L8/L4/L2

12.1.7 FLASHCALW

Corrupted data in flash may happen after flash page write operations.

After a flash page write operation, reading (data read or code fetch) in flash may fail. This

may lead to an expecption or to others errors derived from this corrupted read access.

Fix/Workaround

Before any flash page write operation, each 64-bit doublewords write in the page buffer must

preceded by a 64-bit doublewords write in the page buffer with 0xFFFFFFFF_FFFFFFFF

content at any address in the page. Note that special care is required when loading page

buffer, refer to Section 2.5.9 ”Page Buffer Operations” on page 11.

42023GS–SAM–03/2014

171

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