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S5PV210 Development Series seven NAND drive implementationsChess Boy 1048272975Nand Flash has the advantages of large capacity, fast rewriting speed, simple interface and so on, which is suitable for storage of large amount of data, which provides a cheap and effective solution for solid-state mass storage. A variety of electronic products such as mobile phone memory, SD card, u disk, etc. are using NAND flash storage, the author here on the NAND drive implementation as a simple introduction.1.

storage media, which is what we call SSD. Its appearance can be made into a variety of styles, such as laptop hard disks, micro-hard disks, memory cards, and USB flash drives. The biggest advantage of SSD is that it can be moved and data protection is not controlled by the power supply. It can be used in various environments, but its service life is not high. It is suitable for individual users. In SSD Based on flash memory, there are two types of storage units:

and adds another dependency condition that you might not want to add to the project. An alternative is to use the Process Manager, which can wrap your program in a variety of ways when you need to analyze it. An optional tool is the SLC command line tool from Strongloop. First, run npm install Strongloop–g, and then run the following code: SLC start [/path/to/app] The code above will start yo

relies on. You can also use command-line methods to download dependent files to the local system. If you don't understand the content, don't worry, in the next steps we'll describe the Package.json file in detail. To install loopback, we use a simple command line to download and install all dependent files. Open your Windows command Line window and enter the following command: $ NPM install-g Strongloop Tip: When installing, you may need to use another user account to perform thi

no caching can be several times the life difference. The third is the number of channels used. The current SSD mainly has eight channels, 10 channels, four channels, if you choose the SSD speed performance to meet your requirements, then the less channel number, SSD life will be longer, this needs to check the selected SSD brand specifications. In addition, the current market of SSDs is divided into MLC SSD and SLC SSD two categories,

Tags: note server log and family exp Baidu Man connectionConnect to an Oracle database using PL/SQL and export the data for backup and import recovery This operation Baidu a search a large, today to organize the project of the past to backup a bit of the database, try to export the data for backup and import recovery; The following is the operation process;1 Open Service2 Configuring MonitoringLocate the following file: Notepad opens In the Navigator drop-down menu, select: Add the databas

his wife, but it was now lost. So he decided to write a chronicle of his own. Because of the ambiguity of the misunderstanding and the ambiguous and unjust history, he decided to put all his royal duties behind him and decided to write the Chronicle, which would make him famous, true and glorious, depicting all his heroic deeds.The King assembled the greatest minds of his kingdom at the academic chroniclers meeting (ACM), as he named it, and decide D to test their might. The task is to build th

Solid-State hard disk storage medium is divided into two types, one is the use of flash memory (Flash chip) as a storage medium, the other is the use of DRAM as a storage medium. 　　Solid-state hard disk based on flash memory Flash-based solid-state drives (IDE flash disk, serial ATA flash disk): Flash chips are used as storage media, which is what we usually call SSDs. Its appearance can be made into a variety of shapes, such as: Notebook hard disk, micro-hard disk, memory card, USB flash driv

another dependent condition to the project that you may not want. One alternative is to use the process manager, which can wrap your program with various tools when you need to analyze it. An optional tool is the SLC command line tool from StrongLoop. First, run npm install strongloop-g, and then run the following code: slc start [/path/to/app] The above code starts your program in the process manager. You

damaged, the SSD capacity will decrease until it must be replaced. IT managers have invested a lot in SSD, so they hope to adopt some methods to ensure the maximum service life of SSD. SSD manufacturers will provide warranty services. Some manufacturers may even provide an additional 20% of storage capacity to offset the impact of damaged units. SSD has three main technologies in manufacturing: multi-layer unit (MLS), enhanced multi-layer unit (eMLC), and single-layer unit (

are produced. Manufacturers can make solid-state drives by buying NAND memory and then matching the appropriate control chip. The new generation of SSDs generally uses the SATA-2 interface.SSD storage medium is divided into two types, one is Flash (Flash chip) as a storage medium, the other is the use of DRAM as a storage medium.(1) Flash-based Solid state drive (IDE flash disk, Serial ATA flash disk):Flash chips are used as storage media, which is what we typically call SSDs. Its appearance ca

customizable, it will enter your code library and add another dependent condition to the project that you may not want. One alternative is to use the process manager, which can wrap your program with various tools when you need to analyze it. An optional tool is the SLC command line tool from StrongLoop. First, run npm install strongloop-g, and then run the following code: slc start [/path/to/app] The ab

. 　　How to choose Solid State Drive Let's take a look at the parameters of the solid-state drives: Flash particle Flash memory particles are divided into SLC, MLC, TLC Three, SLC's best performance at the same time life is the longest, but the price is the most expensive. The performance of these three is closely related to the complexity of storing voltage signals. The voltage combination of TLC is composed of 3-bit binary, that is, 2 of the 3-si

node. JS Framework Strongloop Learning notes (i) I am using node. js to do the phone backstage, find the framework found Strongloop quite suitable, but found no Chinese tutorial, so in their own study, do a note, to facilitate other people like me reference (my english level is very poor, only a little try to do, and record down, if you find the problem, please inform me good correction, Thanks, man. ）。 All operations are done under Centos7-x64,node.js 0.12.2. Nodejs Fram

principles and ideas are the same. So the answer I've come up with is: the things that a colleague wants to do, kernel can do nothing. First a big picture, we can see, wear balance, garbage collection, bad block management, these things have all been done by SSD, EMMC, the host side in these things can be said to be completely transparent. The idea of a colleague actually stayed a few years ago when the embedded system used bare flash chips and needed to manage the times of these miscellaneous

of random Read and write small files most, it is directly associated with the use of experience. Although many solid-state drives claim that their products can be read and written to more than 450-550 megabytes, they reach the upper limit of the interface standard. But this is a continuous read-write operation, not most of the operating state. Another thing to consider is the flash chip. It can be said that SSD solid-state hard disk performance characteristics mainly determined by the main con

interface bus.4. Hardware ECC generation, detection and indication (Software correction ). Hardware generation ECC, Software Correction5. Support both SLC and mlc nand flash memory: 1-bit ECC, 4-bit and 8-bit ECC for NAND Flash.(Recommend: 1bit ECC for SLC, 4bit and 8bit ECC for mlc nand flash) Support nandflash of SLC and MLC: 1bit ECC for

Node. js framework StrongLoop Study Notes (1)Node. js framework StrongLoop Study Notes (1) I am using node. js is used as the mobile phone background, and the search framework finds that StrongLoop is quite suitable, but it finds that there are no Chinese tutorials. So when you study on your own, take a note, for reference by other people like me (my English level is very poor, I can only try it a little bit and record it. If you find any problem, please notify me to correct it, thank you !).

. This type of bad block is known as factory (masked) Bad block or initial bad/invalid block, which will be marked before the factory is released, It is marked as a bad block. (2) Bad blocks generated during use: The second type is generated during the use process. Because the use process takes a long time, an error occurs when the block is erased. This indicates that the block is broken. It must be found during the running of the program and marked as bad blocks. The location of the tag.

factory (masked) bad block or initial bad/invalid block, which will be marked before the factory is released, It is marked as a bad block. (2) Bad blocks generated during use: The second type is generated during the use process. Because the use process takes a long time, an error occurs when the block is erased. This indicates that the block is broken. It must be found during the running of the program and marked as bad blocks. The location of the tag. This type of block is called worn-out. Bad