PCIE switch pin level configuration system and method and related assembly

Abstract

The invention discloses a PCIE switch pin level configuration system, and relates to the field of system board cards. The PCIE switch pin level configuration system comprises a PCIE switch and a CPLD,wherein the GPLD pin of the CPLD is connected to the configuration pin of the PCIE switch, and the GPLD pin of the CPLD is used for adjusting the level value flowing into the PCIE switch according tothe level configuration value of the pin in the register. The system changes traditional hardware mode configuration, real-time logic control and configuration of the PCIE switch are achieved throughthe CPLD, and the PCIE configuration mode is more flexible and convenient. The invention also provides a PCIE switch method and device, a CPLD and a readable storage medium, which have the above beneficial effects.

Description

Technical field [0001] The invention relates to the field of system board cards, in particular to a PCIE switch pin level configuration system, method and device, a CPLD and a readable storage medium. Background technique [0002] Nowadays, both storage systems and server systems are developing toward higher density, higher efficiency, and more concentrated design. In order to meet the different needs of the market, the more complex and dense the system board design, the stronger the scalability. [0003] At present, the resources of a single PCIE of the Intel x86 platform mainly used are limited, which is far from meeting the current system's demand for the number of PCIe. Therefore, in order to meet more needs, PCIe switches are used in many designs to extend PCIe. Quantity, so as to meet the requirements of system scalability. [0004] Before using PCIe switch to control system functions, you need to control its pin status. Through the pin status, you can control the system band...

AI Technical Summary

Problems solved by technology

[0006] This method needs to fix the state of the pins and implement the configuration of the PCIe switch through hardware. The state of the PCIe switch is relatively simple. If you want to make changes, you need to change the hardware to change the state of the PCIe switch, configure and change the configuration. The process is cumbersome

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