CN111240919A

CN111240919A - Method for multi-module real-time regulation and control verification of PCIe module

Info

Publication number: CN111240919A
Application number: CN202010133351.5A
Authority: CN
Inventors: 庄建民; 魏智汎; 齐元辅; 王宇
Original assignee: Jiangsu Huacun Electronic Technology Co Ltd
Current assignee: Jiangsu Huacun Electronic Technology Co Ltd
Priority date: 2020-03-01
Filing date: 2020-03-01
Publication date: 2020-06-05

Abstract

The invention discloses a method for regulating and verifying PCIe module in real time by multiple modules, which uses a self-defined measuring mode to simultaneously measure signals of the modules to be tested and confirm whether the module to be tested has over-current, and displays the result. Reduce the damage to the test system and reduce the cost.

Description

Method for multi-module real-time regulation and control verification of PCIe module

Technical Field

The invention relates to the technical field of PCIe modules, in particular to a method for regulating and verifying a PCIe module by multiple modules in real time.

Background

When the PCIe module is imported and produced in mass after being developed and designed at present, a PCIe link needs to be tested and the signal quality of the PCIe link needs to be confirmed, and often a computer and a high-order instrument need to be used for testing and correcting. The single module test method is not only inflexible but also inefficient.

Disclosure of Invention

The present invention provides a method for real-time regulation and control of a PCIe module by multiple modules, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a method for real-time regulation and control and verification of a PCIe module by multiple modules comprises a test mainboard, wherein a USB concentrator and a plurality of test modules are installed on the test mainboard, the USB concentrator is connected with the plurality of test modules, the USB concentrator is connected with a computer host through a USB interface, and the computer host is bidirectionally connected with a control program module; the plurality of test modules comprise a first test module, a second test module, a third test module and an Nth test module, wherein N is an integer larger than 3.

Preferably, the test module includes PCIe controller, microprocessor, first switch is connected to the PCIe controller, the PCIe controller passes through serial ports connection microprocessor, the PCIe controller passes through the PCIe interface connection determinand connector, determinand connector both-way connection PCIe module that awaits measuring, microprocessor connects result display, first switch and second switch respectively, the PCIe module that awaits measuring passes through serial ports connection microprocessor, the PCIe module that awaits measuring still connects the current detection unit, the current detection unit connects microprocessor.

Preferably, the method for multi-module real-time regulation and control verification of the PCIe module includes the following steps:

A. the PCIe controller is led in and arranged through a serial port, the serial port sends a command to the processor from the computer set through the USB concentrator interface, a program interface is designed and developed at a computer host end, and the PCIe controller can be controlled to send out setting in real time;

B. when the power switch is turned on by the microprocessor, the control program is loaded into the PCIe main control and runs, and the initial state and the running state are represented on a result display and a computer program interface in real time;

C. when a program in the PCIe controller runs, firstly carrying out current detection on the PCIe module to be detected, and then starting to detect the transmission and receiving characteristics after the current is confirmed;

D. when the PCIe controller starts to transmit data, the object module to be tested will receive the data and analyze the data, and transmit the related result back to the computer interface and the result display through the serial port, and the other path is that the PCIe controller of the object module to be tested will receive the data and analyze the data after the PCIe module to be tested starts to transmit data through the command under the serial port, and transmit the related result back to the computer interface and the result display through the serial port.

Preferably, the data transmitted by the PCIe controller includes the following parameters: transmission rate, signal amplitude level, signal jitter.

Compared with the prior art, the invention has the beneficial effects that: the invention uses a self-defined measuring mode to simultaneously measure signals of a plurality of modules to the module to be tested, confirm whether the module to be tested has over-current or not and display the result. Reduce the damage to the test system and reduce the cost.

Drawings

FIG. 1 is a schematic block diagram of the system of the present invention;

FIG. 2 is a functional block diagram of a test module according to the present invention;

FIG. 3 is a flow chart of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a method for a multi-module PCIe module real-time regulation and verification comprises a test mainboard 1, wherein a USB concentrator 2 and a plurality of test modules are installed on the test mainboard 1, the USB concentrator 2 is connected with the plurality of test modules, the USB concentrator 2 is connected with a computer host 4 through a USB interface 3, and the computer host 4 is bidirectionally connected with a control program module 5; the plurality of test modules comprise a first test module 6, a second test module 7, a third test module 8 and an Nth test module, wherein N is an integer larger than 3.

According to the invention, the test module comprises a PCIe controller 9 and a microprocessor 10, the PCIe controller 9 is connected with a first power switch 11, the PCIe controller 9 is connected with the microprocessor 10 through a serial port, the PCIe controller 9 is connected with an object connector 12 to be tested through a PCIe interface, the object connector 12 to be tested is connected with a PCIe module 13 to be tested in a bidirectional mode, the microprocessor 10 is respectively connected with a result display 14, the first power switch 11 and a second power switch 15, the PCIe module 13 to be tested is connected with the microprocessor 10 through a serial port, the PCIe module 13 to be tested is further connected with a current detection unit 16, and the current detection unit 16 is connected with the microprocessor 10.

The working principle is as follows: a method for regulating and verifying PCIe module groups in real time by multiple modules comprises the following steps:

By using the method, the precision and the efficiency of PCIe test can be greatly improved, thereby solving the difficulty of production of research personnel and reducing the test cost and time.

The data transmitted by the PCIe controller comprises the following parameters: a transmission channel: various signal channels can be customized for transmission and transmission rate: multiple signal rates can be customized for transmission, namely PCIe channels x1 to x16 and PCIe first generation to fifth generation and signal amplitude are as follows: various amplitudes can be customized for transmission and signal jitter: the transmission of dynamic offsets such as various signals can be customized.

In summary, the invention uses a self-defined measurement mode to measure signals of a plurality of modules to the module to be tested and confirm whether the module to be tested has over-current, and displays the result. Reduce the damage to the test system and reduce the cost.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a method that many modules can regulate and control in real time and verify PCIe module, includes test mainboard (1), its characterized in that: the test mainboard (1) is provided with a USB concentrator (2) and a plurality of test modules, the USB concentrator (2) is connected with the plurality of test modules, the USB concentrator (2) is connected with a computer host (4) through a USB interface (3), and the computer host (4) is bidirectionally connected with the control program module (5); the plurality of test modules comprise a first test module (6), a second test module (7), a third test module (8) and an Nth test module, wherein N is an integer larger than 3.

2. The method of claim 1, wherein the multi-module real-time adjustable PCIe module verification method comprises: test module includes PCIe controller (9), microprocessor (10), first switch (11) is connected in PCIe controller (9), PCIe controller (9) passes through serial ports connection microprocessor (10), PCIe controller (9) are through PCIe interface connection determinand connector (12), determinand connector (12) both way junction PCIe module (13) that awaits measuring, microprocessor (10) connect result display (14), first switch (11) and second switch (15) respectively, PCIe module (13) that awaits measuring pass through serial ports connection microprocessor (10), PCIe module (13) that awaits measuring still connect current detection unit (16), microprocessor (10) are connected in current detection unit (16).

3. The method of claim 1, wherein the multi-module real-time adjustable PCIe module verification method comprises: the method comprises the following steps:

4. The method of claim 1, wherein the multi-module real-time adjustable PCIe module verification method comprises: the data transmitted by the PCIe controller includes the following parameters: transmission rate, signal amplitude level, signal jitter.