Method and device for recognizing equipment version information through GPIO port line

A technology of version information and identification equipment, which is applied in the direction of instruments, electrical digital data processing, etc., can solve the problems of difficult compliance and limited version status, and achieve the effect of compatibility, simple and accurate identification process
CN104298635AInactive Publication Date: 2015-01-21FUJIAN LANDI COMML EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUJIAN LANDI COMML EQUIP CO LTD
Publication Date
2015-01-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method and device for recognizing equipment version information through a GPIO port line. The method includes the steps that the port line on a piece of equipment is configured to be in one of the three recognition states of a high-level recognition state, a low-level recognition state and a suspension state according to the version information of the equipment, and the port line serves as the version recognition port line of the equipment; The GPIO port line is connected with the version recognition port line; the GPIO port line is sequentially connected with a pull-up resistor and a pull-down resistor, and the states of the GPIO port line are read sequentially; the recognition state of the equipment is obtained through the two read results, the version information of the equipment is obtained by comparing the equipment recognition state and the equipment recognition state configured in advance. By means of the method and device for recognizing the equipment version information through the GPIO port line, 3N (N represents the number of port lines) different configuration recognition schemes of the equipment to be recognized can be provided, the version of the equipment is judged by reading the state of the connected GPIO port line without altering the software version information of the equipment.
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Description

technical field

[0001] The invention relates to the field of port line identification of electronic equipment, in particular to a method and device for GPIO line identification of device version information. Background technique

[0002] In the electronic equipment of the prior art, a machine often corresponds to modules with different configuration versions, and each module corresponds to a different driver IC. When mobilizing the corresponding driver software, the system CPU needs to know which configuration version the module is currently using. . The traditional solution uses different modules and needs to be matched with different software carriers. There is often a phenomenon of mixed hardware debugging versions of various versions, which is inconvenient for production and management, and is prone to errors. Therefore, the version configuration of different modules is often judged by the high and low states of the port line. For example, when a certain GPIO line show...

Claims

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