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Identifying-driving method and device for software layer of storage device

A storage device and drive method technology, applied in the direction of instruments, electrical digital data processing, etc., can solve the problems of increasing design complexity, product production process, occupation, etc.

Active Publication Date: 2012-09-12
SLICONGO MICROELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the above solution are: it needs to occupy a GPIO resource; and, it needs to provide level signal support during design, such as providing specific wiring and matching pull-up and pull-down resistors, which increases the design complexity and product production process

Method used

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  • Identifying-driving method and device for software layer of storage device
  • Identifying-driving method and device for software layer of storage device
  • Identifying-driving method and device for software layer of storage device

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Embodiment Construction

[0029] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] refer to figure 1 An embodiment of a method for identifying and driving a storage device software layer according to the present invention is proposed. The method can include:

[0031] Step S10, according to the difference in the amount of data read from different types of flash memory, write data in corresponding writing methods;

[0032] In step S11 , during the reading operation, data is read in the same reading manner.

[0033] The identification and driving method of the storage device software layer of the present embodiment, according to the Nand Flash read and write operation process of the Normal type and the Toggle DDR type, there is a double difference in the number of data operations in a single pulse cycle, so during mass production, There are two different types of Nand Flash, which are mass-pr...

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Abstract

The invention discloses an identifying-driving method and an identifying-driving device for software layer of storage device, wherein the method comprises the steps of: carrying out data write-in by corresponding writing modes for different reading data volumes of flash memories of different types; and reading data by a same reading mode in reading operation. According to the invention, ordinary write-in and ordinary read-out are executed for an ordinary Flash, superpositional write-in and ordinary read-out are executed for Toggle DDR. Thereby the identification of a Flash type without adopting a method of detecting external GPIO can be realized by a storage device, a compatible identification of Toggle DDR and Normal-type Nand Flash can be enabled, and Boot operations thereof are supported.

Description

technical field [0001] The invention relates to the identification and driving technology of the software layer of the storage device, in particular to a method and device for the identification and driving of the software layer of the storage device. Background technique [0002] Solid-state storage devices in the prior art, such as U disk, SD card (Secure Digital Memory Card, safe digital card), SSD (Solid State Disk, solid-state disk), etc., its execution code is stored in Nand Flash, loaded by Boot and Switches the execution of the program composed of the above execution codes. Different standards of Flash have different operating characteristics, and the ways in which Boot needs to be loaded will also be different. Therefore, the booting of solid-state storage devices puts forward higher requirements for Boot compatibility. Boot: In the IC design and manufacturing process, the code solidified in the IC, once the manufacturing is completed, this part of the code cannot ...

Claims

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Application Information

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IPC IPC(8): G06F13/10
Inventor 谭四方
Owner SLICONGO MICROELECTRONICS INC