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Control method, system and equipment of single serial port multi-CPU

A control method and a single serial port technology, applied in the field of communication, can solve the problems of manual control and inability to realize remote maintenance, and achieve the effect of remote maintenance

Active Publication Date: 2007-12-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of implementing this technology, jumpers or DIP switches still need manual control, and remote maintenance cannot be realized

Method used

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  • Control method, system and equipment of single serial port multi-CPU
  • Control method, system and equipment of single serial port multi-CPU
  • Control method, system and equipment of single serial port multi-CPU

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Embodiment Construction

[0032] The embodiment of the present invention provides a single serial port multi-CPU control method, system, and equipment. A serial port management module is set between the serial port socket and the CPU, and the control terminal sends a serial port switching command to the CPU, and the source CPU receives the said After the serial port switching command, the state information sent to the serial port management module is changed, and the serial port management module performs serial port switching according to the state information.

[0033] The technical solutions of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] With reference to Fig. 2, it is a structural block diagram of a kind of single serial port multi-CPU control system of the embodiment of the present invention; According to this figure, a kind of single serial port multi-CPU control system comprises at least two CPUs (this figure i...

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Abstract

A method for controlling single serial-interface multi-CPU includes receiving serial-interface switchover command sent from control terminal by source CPU, changing state information sent to serial-interface management module by source CPU according to said serial-interface switchover command and switching serial-interface from source CPU to another CPU by serial-interface manage module according to changed state information. The system used for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to the communication field, in particular to a single serial port multi-CPU control method, system and equipment. Background technique [0002] With the development of electronic technology, the complexity of single-board hardware design is getting higher and higher. There may be multiple central processing units (Center Process Unit, CPU) on one single board, especially in Advanced Telecom Computing Architecture (Advanced Telecom Computing Architecture, The single board of ATCA) architecture products realizes the separation of business and management planes, so that in addition to the debugging serial port of the business CPU, there is also a debugging serial port of the CPU of the Baseboard Management Controller (BMC) on a single board. Therefore, it is necessary to design multiple serial port circuits on a single board, which increases the complexity of the design. At the same time, multiple serial port sockets will occupy a lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
Inventor 刘华伟冯健霍红伟
Owner HUAWEI TECH CO LTD
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