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DSP function dynamic reconstruction method and device based on iButton authorization

A dynamic reconfiguration and function technology, applied in the input/output process of data processing, instruments, input/output to record carrier, etc., can solve the problem of occupying a lot of space, complex function dynamic reconfiguration authorization process, low safety and reliability, etc. problem, to achieve the effect of small space resources, simple authorization method, and high security and reliability

Active Publication Date: 2021-07-23
SICHUAN JIUZHOU ELECTRIC GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above analysis, the embodiment of the present invention aims to provide a method and device for dynamic reconfiguration of DSP functions based on iButton authorization, so as to solve the problems of complicated authorization process of dynamic reconfiguration of existing functions, large space occupation and low safety and reliability.

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  • DSP function dynamic reconstruction method and device based on iButton authorization
  • DSP function dynamic reconstruction method and device based on iButton authorization

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Embodiment 1

[0032] A specific embodiment 1 of the present invention discloses a method for dynamic reconfiguration of DSP functions based on iButton authorization, such as figure 1 shown, including the following steps:

[0033] S1. The device is powered on, and the DSP starts iButton (abbreviation of information button, ie information button) detection.

[0034] The device refers to a device composed of functional modules with non-unique functions that can realize multiple functions, including DSP, memory and execution modules of various functions. One of the DSPs is provided with an iButton interface, and the specific DSP can be used as the iButton interface by setting a 1-wire adapter on any I / O, or through any I / O port software in the DSP. The wire protocol is used as the iButton interface. The BOOTLOADER program is stored in the memory of the device, that is, the boot loader. After the device is powered on, the DSP immediately executes the boot loader, initializes the device, and be...

Embodiment 2

[0057] A specific embodiment 2 of the present invention discloses a DSP function dynamic reconfiguration device based on iButton authorization, such as figure 2 shown, including:

[0058] The iButton module is used to store authorization data and encrypted instruction data.

[0059] The memory module is used to store the functional program of the device.

[0060] DSP module is used to detect iButton; DSP detects iButton, DSP reads and verifies the authorization data in iButton; after iButton authorization verification is passed, DSP reads the encrypted instruction data in iButton again, and decrypts the encrypted instruction data; DSP According to the decrypted instruction data, the function program in the memory is loaded and executed, and the dynamic reconstruction of the device function is completed.

[0061] During implementation, the content of the encrypted instruction data in the iButton module includes a function serial number, and the function serial number corresp...

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Abstract

The invention relates to a DSP function dynamic reconstruction method and device based on iButton authorization, belongs to the field of equipment function dynamic reconstruction, and solves the problems that in the prior art, the function dynamic reconstruction authorization process is complex, the occupied space is large, and the safety and reliability are low. The method comprises the following steps: electrifying equipment, and starting iButton detection by a DSP (Digital Signal Processor); if the iButton is detected by the DSP, reading and verifying the authorization data in the iButton; after the iButton authorization verification is passed, enabling the DSP to read the encrypted instruction data in the iButton again, and decrypt the read encrypted instruction data; and enabling the DSP to load and execute a function program corresponding to the instruction data in the memory according to the decrypted instruction data to complete the dynamic reconstruction of the equipment function.

Description

technical field [0001] The invention relates to the technical field of dynamic reconfiguration of device functions, in particular to a method and device for dynamic reconfiguration of DSP functions based on iButton authorization. Background technique [0002] With the continuous development of information technology, in the fields of industrial control, radar and military electronics, more and more applications require that the components of the equipment have various functions, and the functions of the equipment modules can be dynamically reconfigured into different functions to meet The different needs of the overall equipment. When many devices are dynamically reconfigured, some do not have authorization verification, and the functions of the device modules are easily changed by people, which affects the normal execution of device functions. Some use complex human-computer interaction devices for verification, such as monitors, keyboards, etc. The peripherals are complex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/79G06F3/06
CPCG06F21/79G06F3/0608G06F3/062
Inventor 罗剑曾昱翔李晓龙孙淼李宏强
Owner SICHUAN JIUZHOU ELECTRIC GROUP
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