CN104375783B - A kind of method of EEPROM data write-in - Google Patents
A kind of method of EEPROM data write-in Download PDFInfo
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- CN104375783B CN104375783B CN201410619209.6A CN201410619209A CN104375783B CN 104375783 B CN104375783 B CN 104375783B CN 201410619209 A CN201410619209 A CN 201410619209A CN 104375783 B CN104375783 B CN 104375783B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
- G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
- G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
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- Techniques For Improving Reliability Of Storages (AREA)
Abstract
The present invention provides a kind of methods of EEPROM data write-in, including：Step 1, the initial address of write-in is the effective address of EEPROM, and when total length of data to be written is no more than the effective length of highest address from the initial address to EEPROM, thens follow the steps 2, otherwise exits；Step 2, it is transmitted to EEPROM in batches after data prediction to be written；Step 3, EEPROM is written in the data to be written received by EEPROM.After the method for the present invention, it is transmitted to EEPROM in batches after data prediction to be written, successively EEPROM is written in the data to be written received by the EEPROM, avoid the automatic page turning phenomenon when write-in of EEPROM data, it is more transmitted in batches due to being written into data, has often transmitted a batch, EEPROM write-in a batch, efficiency is improved, avoids and every has transmitted the problem that the delay regular hour after a byte makes EEPROM write-in hardware efficiencies low.
Description
Technical field
The present invention relates to a kind of methods that the technical field of extensive aggression more particularly to EEPROM data are written.
Background technology
EEPROM (band electrically erasable programmable read-only memory) is the modifiable read-only memory of user, can pass through height
It wipes and reprograms in the effect of common voltage, therefore EEPROM is widely used.
There are one feature, write-in data will appear a page flop phenomenon by EEPROM.A such as AT24C02BN EEPROM core
Piece memory space is 2kbit, that is, 256byte, and AT24 points are page 32, and every page of length is 8byte, if from address 0x5
Start that [8]={ 0,1,2,3,4,5,6,7 } data is written, first page content is after completion：0x0~0x7：3、4、5、6、7、0、
1、2.EEPROM often transfers a byte after calling I2C write-in interfaces, and current page address can transfer current page from adding 1
Current page beginning of the page is returned in address after the last one byte.No matter how many a bytes are transmitted, as long as reaching current page when write-in
The last one byte, address can all automatically return to current page beginning of the page, and other addresses then add 1 automatically.Here it is EEPROM automated pages
Write automatic turning.Page based on EEPROM writes flop phenomenon, if be written by I2C bulk transfers data to EEPROM, by nothing
Method is written page by page.In addition, after EEPROM receives the data that I2C is transmitted, hardware needs the regular hour to be written.So such as
If fruit calls I2C only to transmit a byte every time, on the one hand repeat to call that I2C occupancies and time can be increased, on the other hand
Delay regular hour after a byte of being often totally lost allows EEPROM write-in hardware to greatly reduce execution efficiency again.
Invention content
The technical issues of present invention need to solve is to overcome the shortcomings of above-mentioned, provides a kind of efficient EEPROM data write-in
Method, which is characterized in that including：
Step 1, the initial address of write-in be EEPROM effective address, and total length of data to be written be no more than from
The initial address to the highest address of EEPROM effective length when, execute step 2；
Step 2, it is transmitted to EEPROM in batches after data prediction to be written；
Step 3, successively EEPROM is written in the data to be written received by EEPROM.
Further, the step of data prediction to be written specifically includes：
Step A, if total length of data to be written is less than or equal to the initial address to EEPROM current page highests address
Length is then written into data and is disposably transmitted to EEPROM, no to then follow the steps B；
Step B, if total length of data to be written be more than the initial address to EEPROM current page highests address length,
The initial address then is transmitted to the data of the length of EEPROM current page highests address to EEPROM, updates the initial address
With the total length of data to be written, step A is executed.
Further, the data to be written are transmitted to EEPROM transmission using I2C.
Further, the initial address is the beginning of the page address of EEPROM.
Further, the EEPROM is AT24C02BN.
After the method for the present invention, EEPROM is transmitted to after data prediction to be written in batches, the EEPROM successively will
The data to be written write-in EEPROM received, avoids the automatic page turning phenomenon when write-in of EEPROM data, more due to that will wait for
Write-in data transmit in batches, have often transmitted a batch, and EEPROM write-in a batch improves efficiency, avoid and every have transmitted one
The problem that the delay regular hour makes EEPROM write-in hardware efficiencies low after byte.
Description of the drawings
Fig. 1 is the method flow diagram of EEPROM data write-in provided by the invention；
Fig. 2 is the flow chart of data prediction to be written provided by the invention.
Specific implementation mode
In order to make relevant technical staff in the field more fully understand technical scheme of the present invention, below in conjunction with of the invention real
The technical solution in embodiment of the present invention is clearly and completely described in the attached drawing for applying mode, it is clear that described reality
The mode of applying is only some embodiments of the invention, rather than whole embodiments.
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Refering to fig. 1, it is a kind of method of the EEPROM data write-in of embodiment provided by the invention, this method includes：
Step S100, the effective address for being EEPROM in the initial address of write-in, and total length of data to be written does not surpass
Cross from initial address to the highest address of EEPROM effective length when, execute step S200；
In the present embodiment, initial address is beginning of the page address.
One AT24C02BN eeprom chip memory space is 2kbit, that is, 256byte, and AT24 points are page 32,
0x00~0xff is the effective address of EEPROM, and when the initial address of write-in is 0x00, writable data to be written are total
Length is up to 256byte.
Step 200, it is transmitted to EEPROM in batches after data prediction to be written；
The data prediction to be written for being written into EEPROM transmits in batches, has often transmitted a batch and has waited for EEPROM write-ins.
Successively EEPROM is written in the data to be written received by step S300, EEPROM.
EEPROM often receives a batch data to be written, and a batch is just written.
In a preferred embodiment, the data prediction to be written includes：
Step S201, judge total length of data to be written whether be less than or equal to the initial address to EEPROM current pages most
The length of high address；
Step S202, if total length of data to be written is less than or equal to the initial address to EEPROM current page highests address
Length, then be written into data and be disposably transmitted to EEPROM, it is no to then follow the steps S203；
Step S203, to EEPROM transmit the initial address to the length of EEPROM current page highests address data,
The initial address and the total length of data to be written are updated, step S201 is executed.
By step S201~S203, the initial address and the total length of data to be written are constantly updated, until
It is just written into data write-in on EEPROM one pages, is then transferred to EEPROM, EEPROM is written.
In the present embodiment, initial address is beginning of the page address, so the data length transmitted every time to EEPROM is exactly the page
Length.
In above-mentioned steps, it is written into data and passes a batch, write-in a batch.This incoming batch data can just be from write-in
Initial address avoids the phenomenon that generating page overturning when writing batch of data, also avoids to the length of the last one address of current page
It passes a byte and writes a low problem of byte efficiency.
Only several embodiments of the present invention are expressed above, the description thereof is more specific and detailed, but can not therefore and
It is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art, not taking off
Under the premise of present inventive concept, various modifications and improvements can be made, these are all within the scope of protection of the present invention.Cause
This, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (4)
1. a kind of method of EEPROM data write-in, which is characterized in that including：
Step 1, in the effective address that the initial address of write-in is EEPROM, and total length of data to be written is no more than from described
Initial address to the highest address of EEPROM effective length when, execute step 2；
Step 2, it is transmitted to EEPROM in batches after data prediction to be written；
Step 3, EEPROM is written in the data to be written received by EEPROM；
The step of data prediction to be written, specifically includes：
Step A, if total length of data to be written be less than or equal to the initial address to EEPROM current page highests address length,
It is then written into data and is disposably transmitted to EEPROM, it is no to then follow the steps B；
Step B, if total length of data to be written be more than the initial address to EEPROM current page highests address length, to
EEPROM transmits the initial address to the data of the length of EEPROM current page highests address, updates the initial address and institute
Total length of data to be written is stated, step A is executed.
2. the method for EEPROM data according to claim 1 write-in, which is characterized in that the data to be written to
EEPROM transmission is transmitted using I2C.
3. the method for EEPROM data write-in according to claim 1, which is characterized in that the initial address is EEPROM
Beginning of the page address.
4. the method for EEPROM data according to claim 1 write-in, which is characterized in that the EEPROM is
AT24C02BN。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410619209.6A CN104375783B (en) | 2014-11-05 | 2014-11-05 | A kind of method of EEPROM data write-in |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410619209.6A CN104375783B (en) | 2014-11-05 | 2014-11-05 | A kind of method of EEPROM data write-in |
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| CN104375783A CN104375783A (en) | 2015-02-25 |
| CN104375783B true CN104375783B (en) | 2018-07-31 |
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| CN201410619209.6A Active CN104375783B (en) | 2014-11-05 | 2014-11-05 | A kind of method of EEPROM data write-in |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107894900B (en) * | 2017-12-06 | 2021-06-29 | 郑州云海信息技术有限公司 | MCU upgrading method and system |
| CN109062843A (en) * | 2018-07-11 | 2018-12-21 | 河南森源电气股份有限公司 | A kind of date storage method and system based on iic bus |
| CN111179993A (en) * | 2019-12-31 | 2020-05-19 | 苏州绿控传动科技股份有限公司 | Data reading/writing method of EEPROM |
| CN114461552B (en) * | 2022-01-26 | 2024-01-30 | 北京经纬恒润科技股份有限公司 | Data storage method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7058732B1 (en) * | 2001-02-06 | 2006-06-06 | Cypress Semiconductor Corporation | Method and apparatus for automatic detection of a serial peripheral interface (SPI) device memory size |
| CN101246749A (en) * | 2008-03-26 | 2008-08-20 | 北京中星微电子有限公司 | Method for automatically recognizing EEPROM paging size and writing in EEPROM |
| CN102402485A (en) * | 2010-09-16 | 2012-04-04 | 安凯(广州)微电子技术有限公司 | Method for detecting parameters of NANDFLASH |
| CN102623053A (en) * | 2011-01-26 | 2012-08-01 | 晨星软件研发(深圳)有限公司 | Memory controller, memory control method and memory system |
-
2014
- 2014-11-05 CN CN201410619209.6A patent/CN104375783B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7058732B1 (en) * | 2001-02-06 | 2006-06-06 | Cypress Semiconductor Corporation | Method and apparatus for automatic detection of a serial peripheral interface (SPI) device memory size |
| CN101246749A (en) * | 2008-03-26 | 2008-08-20 | 北京中星微电子有限公司 | Method for automatically recognizing EEPROM paging size and writing in EEPROM |
| CN102402485A (en) * | 2010-09-16 | 2012-04-04 | 安凯(广州)微电子技术有限公司 | Method for detecting parameters of NANDFLASH |
| CN102623053A (en) * | 2011-01-26 | 2012-08-01 | 晨星软件研发(深圳)有限公司 | Memory controller, memory control method and memory system |
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