Long-distance pcie extension system and data transmission method

A long-distance, data technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problems of complex design, high cost, the distance of PCIe extension line is not long enough, etc., to achieve the effect of simple design and low cost

CN104133793BActive Publication Date: 2018-03-09EVERPRO TECH COMPANY
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-03-09

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a long-distance PCIe extension system and a data transmission method of the long-distance PCIe extension system. The long-distance PCIe extension system comprises a host end interface device, an extension line and an equipment end interface device, wherein the host end interface device is in the disguise of PCIe equipment according to the configuration information, sent by the equipment end interface device, of the PCIe equipment; the equipment end interface device is in the disguise of a host according to received commands; and the extension line is a high-speed connecting line and is used for receiving and sending data between the host end interface device and the equipment end interface device according to a user-defined format. According to the long-distance PCIe extension system and the data sending method of the long-distance PCIe extension system provided by the invention, an embedded system is adopted; an FPGA (Field Programmable Gate Array) does not need to be adopted for carrying out conversion on a PCIe protocol; and the system and the method have the beneficial effects of simple and convenient design and low cost, and are suitable for long-distance transmission.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a PCIe extension system and a data sending method thereof, in particular to a long-distance PCIe extension system and a data sending method thereof. Background technique

[0002] At present, many hosts use the PCIe bus to communicate with PCIe devices. Due to the weak anti-attenuation ability of the PCIe bus, it is only suitable for short-distance transmission. However, for some special fields, it is necessary to separate the host computer from the PCIe device for a long distance, so as to avoid exposing the host computer to harsh working environments or for confidentiality requirements.

[0003] When the distance between the host and the PCIe device is long, a PCIe extension system is required to extend the PCIe bus. One way of the existing PCIe extension system is to use a short-distance PCIe extension cable, such as a PCIe extension cable extended through a USB3.0cable. But these PCIe extension cables still have the short...

Examples

Embodiment Construction

[0033] The present invention will be specifically described below in conjunction with the accompanying drawings.

[0034] figure 1 It is a schematic structural diagram of a long-distance PCIe extension system in a preferred embodiment of the present invention. The long-distance PCIe extension system includes: a host-side interface device 102 , an extension cable 103 , and a device-side interface device 104 . The host-side interface device 102 can be inserted into the PCIe slot of the host computer 101; the device-side interface device 104 has a PCIe slot, and the PCIe device 105 can be inserted into the PCIe slot of the device-side interface device 104; The extension cable 103 is a high-speed connection cable, which can be an optical fiber or an Ethernet network cable, which connects the host-side interface device 102 and the device-side interface device 104 . The data interaction between the host 101 and the PCIe device 105 is transmitted through the host-side interface dev...