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A kind of controller and method, system

A control method and controller technology, applied in the electronic field, can solve problems such as non-rewritable

Active Publication Date: 2020-06-23
京微齐力(深圳)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to protect the data in the FLASH, more and more FLASH manufacturers provide a special register in the FLASH, that is, the OTP register, but the OTP register can only be programmed once, which has certain limitations. Now it is urgent to design a The new technical solution can realize the function that cannot be rewritten after the OTP editing is confirmed, and can edit and debug the information in the memory for many times.

Method used

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  • A kind of controller and method, system
  • A kind of controller and method, system
  • A kind of controller and method, system

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Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] Such as figure 1 As shown, the controller 06 disclosed in the embodiment of the present invention, the controller 06 includes,

[0035] Acquisition unit 01, configured to acquire the state of the memory;

[0036] Specifically, the acquisition unit 01 may be a state machine, and the acquisition unit 01 is used to control the latc...

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Abstract

The invention discloses a controller, a method and a system, and the controller comprises an obtaining unit which is used for obtaining the storage content of a memory; a latch unit used for latchingthe state of the memory; an identification unit, wherein the memory is used for identifying the state of the memory, generating an editable instruction when the state of the memory is an unlocked state, sending the editable instruction to the memory, shielding the editable instruction when the state of the memory is a latched state, and judging whether the content stored in the memory can be changed or not according to the state of the memory. The technical scheme disclosed by the invention is used for solving the problem of limitation of the OTP in application in the prior art.

Description

technical field [0001] The invention relates to the electronic field, and specifically relates to a controller, a method, and a system. Background technique [0002] As embedded applications become more and more widespread, product security is becoming more and more important. On the one hand, it is to protect the hardware design, and on the other hand, it is also for the safety of the product itself. In the embedded system, all codes and system data are stored in the FLASH chip. The feature of the FLASH chip is that it can be erased and written many times, and the data will not be lost when the power is turned off. In order to protect the data in the FLASH, more and more FLASH manufacturers provide a special register in the FLASH, that is, the OTP register, but the OTP register can only be programmed once, which has certain limitations. Now it is urgent to design a The new technical solution can realize the non-rewritable function after OTP editing is confirmed, and can e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/16
CPCG06F13/1668G06F2213/16
Inventor 谭亚伟崔运东王海力
Owner 京微齐力(深圳)科技有限公司
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