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A redriver chip coding error rewriting monitoring system and method

A monitoring system and chip technology, applied in the field of signal transmission, can solve the problems of wrong rewriting of Redriver or EEPROM, lack of SMbus bus monitoring mechanism, etc.

Active Publication Date: 2021-07-27
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a Redriver chip coding error rewriting monitoring system and method, aiming to solve the lack of monitoring mechanism for the SMbus bus in the prior art, the problem that the system controller is likely to cause the risk of rewriting by mistake to Redriver or EEPROm, and realize real-time Monitor the risk of incorrect rewriting and improve the reliability of SMbus bus data

Method used

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  • A redriver chip coding error rewriting monitoring system and method
  • A redriver chip coding error rewriting monitoring system and method

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Embodiment 1

[0027] Such as figure 1 As shown, the present invention discloses a Redriver chip encoding error rewriting monitoring system, and the specific structure of the system is as follows:

[0028] The Redriver chip is connected to the EEPROM through the SMbus bus;

[0029] The Redriver chip and the EEPROM are connected to the SMbus controller through the Switch chip together, and a pull-up resistor is arranged between the SMbus bus and the Switch chip;

[0030] The SMbus bus is also connected with an ADC, and the voltage of the SMbus bus is monitored by the ADC.

[0031] The embodiment of the present invention monitors whether the EEPROM code of the Redriver chip is mistakenly rewritten by ADC (analog to digital converter, analog-to-digital converter), and utilizes the Switch chip to isolate the Redriver chip from the system SMbus controller, and the SMbus bus at the Redriver chip / EEPROM end remains upper , the SMbus bus is monitored through the ADC, and when an abnormally low lev...

Embodiment 2

[0040] Such as figure 2 As shown, the present invention discloses a Redriver chip encoding error rewriting monitoring system, and the specific structure of the system is as follows:

[0041] The Redriver chip is connected to the EEPROM through the SMbus1 bus;

[0042] The Redriver chip and the EEPROM are connected to the SMbus controller through the Switch chip together, and a pull-up resistor is arranged between the SMbus bus and the Switch chip;

[0043] Described SMbus bus is also connected with ADC, monitors SMbus bus voltage by ADC;

[0044] The SMbus controller is connected to the ADC through the SMbus2 bus.

[0045] The embodiment of the present invention monitors whether the EEPROM code of the Redriver chip is mistakenly rewritten through the ADC, utilizes the Switch chip to isolate the Redriver chip from the system SMbus controller, and keeps the SMbus bus at the end of the Redriver chip / EEPROM at the upper position, and monitors the SMbus bus through the ADC. Whe...

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Abstract

The present invention provides a Redriver chip code error rewriting monitoring system and method. The present invention monitors whether the Redriver chip EEPROM code is mistakenly rewritten through the ADC, and uses the Switch chip to isolate the Redriver chip from the system SMbus controller. Keep pulling up the SMbus bus on the Redriver chip / EEPROM side, and use the ADC to monitor the SMbus bus. When an abnormally low level is detected, an alarm signal will be sent to the system SMbus controller to warn of the risk of incorrect rewriting. In addition, depending on the ADC sampling rate, the SMbus bus can also be connected between the SMbus controller and the high sampling rate ADC to monitor the SMbus bus data.

Description

technical field [0001] The invention relates to the technical field of signal transmission, in particular to a system and method for monitoring code error rewriting of a Redriver chip. Background technique [0002] In the server field, the CPU needs to frequently exchange information with terminal hard disks and other devices, and protocols such as PCIe / SATA / SAS all use relatively common high-speed signal transmission protocols. However, for some larger server products, due to the long distance between the CPU and the hard disk device, there may be a problem of signal quality degradation caused by the long link. There are two common solutions in the industry, one is to use the Redriver (signal repeater) chip to enhance the signal quality, and the other is to use the Retimer to enhance the signal quality. Among them, the Redriver does not need a reference clock, and designers only need to set corresponding parameters for it to achieve signal quality enhancement, and the hard...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/36
CPCG06F13/36H03K19/01721G06F11/0751G06F11/1433G06F11/0772G06F11/0787
Inventor 郭晓宇
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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