FLASH memory on-line programming method based on parallel port

The invention provides an online programming method for a FLASH memory based on a parallel port in the embedded system application field. In the method, a data communication protocol established based on a special parallel port base pin definition sends data by the parallel port, receives the data s...

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Bibliographic Details
Main Authors SUN YANFEI, LONG HUQIANG, HU JIANLING, CHEN YINGQI, SUN MINGLE
Format Patent
LanguageChinese
English
Published 03.12.2008
Subjects
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Summary:The invention provides an online programming method for a FLASH memory based on a parallel port in the embedded system application field. In the method, a data communication protocol established based on a special parallel port base pin definition sends data by the parallel port, receives the data sent by a PC end by using asynchronous FIFO, writes in the FLASH memory after format conversion under the control of a state machine, and carries out verification to the data. The method of the invention is characterized by high and adjustable programming speed, can randomly revise the programming content online, does not need the participation of a CPU in work quickly, can select self-matching model with wide application range, and is especially applicable to the development stage of the embedded system.
Bibliography:Application Number: CN2008134859