Serial port switching method and device

A serial port and internal serial technology, applied in the computer field, can solve the problems of inability to realize serial port switching and large application limitations, and achieve the effect of small application limitations and realization of serial port switching

Active Publication Date: 2021-10-22
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present invention provides a serial port switching method and device, which is used to solve the problem that the existing technology has relatively large application limitations and cannot realize serial port switching well

Method used

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  • Serial port switching method and device

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Embodiment Construction

[0055] In view of the relatively large application limitations in the prior art and the problem that the serial port switching cannot be well realized, the embodiment of the present invention provides a serial port switching method, which is applied to the programmable logic device included in the network equipment, and the serial port included in the network equipment. Each internal device is connected to an internal serial port of the programmable logic device, and the external serial port of the programmable logic device is connected to an external debugging device. The programmable logic device can be, but not limited to, CPLD, Field-Programmable Gate Array Gate Array, FPGA), the internal device can be but not limited to CPU, BMC, etc., and the external debugging device can be but not limited to personal computer and so on. The procedure of this method is as follows figure 1 As shown, the execution steps are as follows:

[0056] S11: Detect whether at least one serial por...

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Abstract

The invention discloses a serial port switching method and device. The method includes: detecting whether at least one serial port frame signal received through the external serial port within a first set time is a set hotkey input signal; Described at least one serial port frame signal is the hot key input signal of setting, then according to the first corresponding relation of serial port frame signal and ASCII, the second corresponding relation of ASCII, internal serial port and external serial port, and described at least one serial port frame signal determine An internal serial port corresponding to the at least one serial port frame signal; and connecting the determined internal serial port with the external serial port. The application of this solution has less limitations, and can realize serial port switching well.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a serial port switching method and device. Background technique [0002] The high-end network equipment in the data center is usually equipped with a central processing unit (Central Processing Unit, CPU) and a baseboard management controller (Baseboard Management Controller, BMC). , Power, temperature status monitoring, etc.; BMC intelligent monitoring of the whole machine, power on and off control, power, temperature status monitoring, etc. [0003] The serial port is an important channel for the external interaction between the CPU and the BMC to receive or send data and instructions. The CPU and the BMC are respectively connected to a complex programmable logic device (Complex Programmable Logic Device, CPLD) through an internal serial port. The external serial port on the CPLD communicates with the external Debug device connection. In order to reduce the difficulty of wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/40G06F13/42
CPCG06F13/4022G06F13/4282
Inventor 胡守锋
Owner RUIJIE NETWORKS CO LTD
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