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Record pointer processing method

A processing method and pointer technology, which is applied in the direction of electrical digital data processing, instruments, memory systems, etc., can solve the problems of uneven erasing and writing and short service life of traditional Flash chips, and achieve the effect of improving service life and space utilization

Active Publication Date: 2017-12-12
HUIZHOU TECHZEN IOT SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a recording pointer processing method to solve the technical problems of uneven erasing and writing of traditional Flash chips and short service life

Method used

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  • Record pointer processing method
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Embodiment Construction

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0044] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The present invention discloses a record pointer processing method. The method comprises the following steps: performing a write operation; writing into data records from a starting address of a data recording area; after the writing is completed, setting the starting address of the data recording area as a read record pointer p1, and the starting address of the last data record in the writing as a write record pointer p2; calculating the number X of the total write data records; performing the write operation again; setting the write record pointer p2 last time as the read record pointer p1 this time; adding the length M to the address corresponding to the read record pointer p1, wherein the obtained address is the starting address D1 of the write data record this time; writing into the data records from the starting address D1, and setting the starting address corresponding to the last data record in all data records this time as the write record pointer P2 in the writing this time; calculating the number X1 of the data records in the writing this time; and calculating the number X of the total write data records. According to the method disclosed by the present invention, the service life and the space utilization rate of the Flash chip can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of Internet of Things devices, in particular to a method for processing record pointers. Background technique [0002] NorFlash is widely used in embedded data storage solutions due to its advantages of easy erasability, fast read and write speed, and high cost performance. For example, the Winbond W25 series Flash chip has a storage space of 4M bytes, which is divided into 64 blocks, each block has 16 sectors, each sector has 4K bytes, and a total of 1024 sectors. [0003] Since the Flash write operation can only change the storage unit from 1 to 0, an erase operation must be performed before writing data (that is, the storage unit is changed to 1). The Flash chip mentioned above only supports sector erase. Suppose you want to write a piece of 100-byte data to the nth sector, and the storage location is the 1000th to 1099th byte of the sector. CPU memory, then replace the contents of the 1000th to 1099th ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/02
CPCG06F12/0246
Inventor 石教辉黄俊祥曾宪聪
Owner HUIZHOU TECHZEN IOT SCI & TECH CO LTD
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