Method, devices and system for serial port redirection process

Abstract

Embodiments of the invention provide a method, devices and a system for the serial port redirection process. The method comprises: a mother board calls a redirection program, and, based on the physical address and the memory size of a shared memory, writes input information received by the mother board into an input buffer of the shared memory as serial port input information, and reads information in an output buffer of the shared memory as serial port output information; the shared memory is used for the serial port management between the mother board and rapid peripheral component devices plugged on the mother board. According to the embodiments of the invention, serial port wires are saved, and artificial on-site debugging is not required, thereby improving the debugging efficiency.

Description

technical field [0001] The embodiment of the present invention relates to the serial port technology, in particular to a serial port redirection processing method, device and system. Background technique [0002] The Peripheral Component Interconnect Express (PCIE for short) standard is the latest bus and interface standard, representing the next-generation Input / Output (I / O for short) interface standard. PCIE adopts the current popular point-to-point serial connection in the industry, which can increase the data transmission rate to a very high frequency. Based on PCIE, developers provide many PCIE devices with PCIE interfaces, such as accelerator cards, graphics cards, sound cards, and so on. With the intelligence of PCIE equipment, the debugging of PCIE equipment is becoming more and more important. At present, the most basic and commonly used method for debugging PCIE devices is to directly use the serial port to input / output system information. [0003] figure 1 It ...

AI Technical Summary

Problems solved by technology

[0004] When debugging PCIE devices in the prior art, not only need to use serial lines in the computer room, but also need to arrange personnel to plug and unplug the serial lines on site, especially when debugging and maintaining multiple devices at the same time, multiple serial ports are needed on site line, the debugging process is very inconvenient, inefficient, and wastes manpower

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