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
CN101089835AActive Publication Date: 2007-12-19HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2007-12-19

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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.
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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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