Parameter self-adaption method, device and equipment of high-speed signal and readable storage medium

Abstract

The invention discloses a parameter self-adaption method, device and equipment of a high-speed signal and a computer readable storage medium. A baseboard management controller is suitable for controlling a sending end and a receiving end for signal transmission based on a mini SAS HD cable. When it is detected that the mini SAS HD cable is in place, cable parameter information is read from an EEPROM of a corresponding port. If the cable parameter information does not meet the link signal integrity requirement, the target signal parameters of the sending end and the receiving end are matched for the cable parameter information from a parameter configuration table, and the parameter configuration table is used for recording and storing the optimal matching relation between the cable parameters and the interface chip parameters. A parameter value in a register of the interface chip at the corresponding end is modified according to the target signal parameter, so that self-adaptive adjustment of parameters of the signal sending end and the signal receiving end of the mini SAS HD cable is achieved, and the driving capability of the sending end and the signal receiving capability of thereceiving end are enhanced. The requirement for link signal integrity is met. A customized high-cost cable is replaced with a low-cost common cable, and the application cost of the system is reduced.

Description

technical field [0001] The present application relates to the technical field of signal transmission, in particular to a parameter adaptive method, device, equipment and computer-readable storage medium for high-speed signals. Background technique [0002] The types of high-speed electrical signals transmitted between IT devices can include Ethernet (10Gbps), SAS (6 / 12Gbps), PCIe (5 / 8 / 16Gbps), etc., among which, 12Gbps SAS electrical signals or 8 / 16Gbps PCIe electrical signals usually use mini SAS HD cable transmission. [0003] The two ends of the mini SAS HD cable are mini SAS HD connectors, and the middle is the signal wire. The outer layer of the signal wire is provided with a black protective layer and a signal shielding layer. The signal wire is composed of multiple copper wires for signal transmission. Signal copper wires are mostly defined by AWG (American Wire Gauge, American Wire Gauge, also known as American Wire Gauge), as shown in Table 1: [0004] Table 1 Ame...

AI Technical Summary

Problems solved by technology

When a cable that does not meet the requirements is inserted into the device by mistake, it cannot be recognized immediately, and it is prone to error codes and abnormal link disconnections

For example: A 30AWG 7-meter mini SAS HD cable is inserted between the controller enclosure and the hard disk enclosure. Because the copper wire is thin and long, the impedance exceeds the standard, and the insertion loss of the 12Gbps signal is increased due to SI (Singnal Integrity, signal integrity) It does not meet the requirements of the receiving end of the chip at both ends of the cable, and error codes cause data transmission delays, link flashes, and other abnormalities

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