CN2775672Y - IEEE-1394 detecting module - Google Patents

Abstract

The utility model relates to an IEEE-1394 testing module mainly comprising a circuit board. A plurality of groups of testing modules are arranged on the circuit board, wherein each testing module is composed of a 1394 peripheral connector, a signal processing interface of an entity layer, a signal processing core of a transmission layer, a central processing unit, a voltage sampling and digital data converting circuit, a voltage stabilizing circuit of a power supply and a display control circuit of lamp numbers. According the structure of the utility model, when the utility model is connected with an IEEE-1394 port of a PC main board to be tested, the utility model is used for testing whether all the functions of an IEEE-1394 host controller of the PC main board are normal. The utility model has the advantages of simple operation and easy use.

Description

The IEEE-1394 test module

Technical field

The utility model relates to the IEEE-1394 test module, relates in particular to a kind of test module of IEEE-1394 master controller of the PC of detection mainboard.

Background technology

Because computing machine science and technology is maked rapid progress, be not only government bodies or private organization, or even individual employed computing machine is also along with quick progress, relatively, computing machine with also more and more stress being connected of every peripherals simple and fast, therefore, various connection specifications are arisen at the historic moment, at present general more common at present connection specification have following several, it is respectively: USB (universal serial bus) (Universal Serial Bus, hereinafter to be referred as USB), IEEE-1394, infrared transmission (Infrared Date Association, IrDA) and Bluetooth wireless transmission (Bluetooth) or the like, wherein, IEEE-1394 is a kind of short distance, high-speed data communication form, former developer is an Apple Computer, and is commonly called as into FireWire (live wire), IEEE-1394 is a simple quick and cheap digital data bus, has following characteristic:

1. the transmission mode of point-to-point (Peer to peer) does not need can be connected in series and to transmit by computing machine;

2. the present per second of high data transfer rates can reach 400MB;

3. support hot plug (Hot Plug) and plug and play (Plug and Play);

4. interface has high speed and real-time, can support the synchronous versus asynchronous data transmission;

5. can connect consumer electronics and computer peripheral equipment simultaneously, support the polyphone of 63 nodes at most;

Therefore, a kind of test module of the ad hoc meter of this creator, it is at the testing equipment that uses the IEEE-1394 data bus as transmission interface, it supports the data transmission framework OHCI (OpenHost Controller Interface) of IEEE-1394, reach the IEEE-1394 transmission mode of three kinds of speed such as 400Mbps, 200Mbps, 100Mbps, can be used to test asynchronous (Asynchronous ' s request) data transmission test, test such as (Isosynchronous) data transmission test and voltage measurement synchronously, it is simple to operate and easy to use.

Summary of the invention

Fundamental purpose of the present utility model is to provide a kind of test module of IEEE-1394 data transmission test, and it is simple to operate and easy to use.

For reaching above-mentioned purpose, IEEE-1394 test module of the present utility model, it mainly comprises a circuit board; Described circuit board is provided with the test module that array is made up of 1394 peripheral connectors, physical layer signal Processing interface, transport layer signal Processing core, central processing unit, voltage sample circuit, digital data conversion circuit, power supply stabilization circuit and cresset display control circuit; In addition, between 1394 peripheral connectors and physical layer signal Processing interface, be provided with a protection loop.

Wherein, 1394 peripheral connectors are connected with physical layer signal Processing interface, physical layer signal Processing interface is again with after transport layer signal Processing core is connected, be connected to a central processing unit again, its central processing unit may command voltage sample circuit and digital data conversion circuit, and to the decipher in addition of described circuit gained data, test, simultaneously export a signal to the cresset display control circuit by central processing unit, show the project of test at present, again described gained data result is back in the testing software of computer-internal at last, stored and show, and described test module is connected with external power source with a power supply stabilization circuit;

Described 1394 peripheral connectors, its can utilize a patchcord can be used to the test have 4Pin to 6Pin, and 6Pin is to the computer peripheral of two kinds of IEEE-1394 connecting lines of 6Pin joint geometry, it has a protection loop, when being used for avoiding by 1394 peripheral connectors, 10 input external voltages, the chip that surging caused damages;

Described physical layer signal Processing interface is used to handle the physical layer signal that the IEEE-1394 signal uses when transmission;

Described transport layer signal Processing core is used to handle IEEE-1394 signal employed transport layer signal when transmission;

Described central processing unit is used to control the correlation functions such as control of the conversion of access decipher, voltage signal of IEEE-1394 signal and test, peripheral circuit;

Described voltage sample circuit can be at the IEEE-1394 signal when transmitting, and the voltage that its peripherals is exported is taken a sample;

Described digital data conversion circuit, it is used for the IEEE-1394 signal is converted in the simulated data of transmission the numerical data of central processing unit institute energy interpretation;

Described power supply stabilization circuit, it has the function of current limliting and pressure limiting, and is as each chip of the described test module of protection, excessive or voltage is excessive to be damaged because of the electric current of external voltage when avoiding testing;

Described cresset display control circuit, it has the LED bulb of array different colours, and it is used for capturing the signal of test event with after central processing unit directly is connected, and the light that sends appropriate color is as identification.

According to above-mentioned structure; IEEE-1394 test module of the present utility model is connected with a computing machine earlier; and test procedure poured in the described computing machine; then; use an IEEE-1394 cable that 1394 peripheral connectors are connected with the IEEE-1394 port of PC mainboard to be measured; and with an external power source with after power supply stabilization circuit joint in the test module is connected; test procedure in the operational computations machine again; make described test procedure set up the test archives with automated manner or manual mode; can treat the detection of IEEE-1394 data bus on the testing host; it not only designs and operates all quite simple; in addition; when the protection loop can be used to avoid by 1394 peripheral connectors input external voltage, the chip that surging caused damaged.

Description of drawings

Fig. 1 is a circuit block diagram of the present utility model;

Fig. 2 is a use synoptic diagram of the present utility model;

Fig. 3 A is one of circuit diagram of the present utility model;

Fig. 3 B is two of a circuit diagram of the present utility model.

The figure number explanation:

1: circuit board 2: external power source

The peripheral connector 20 of 10:1394: physical layer signal Processing interface

30: transport layer signal Processing core 40: central processing unit

50: voltage sampling and digital data conversion circuit

60: power supply stabilization circuit 70: the cresset display control circuit

11: the protection loop

Embodiment

Structure of the present utility model, device and feature thereof are lifted a preferable possible embodiments and are cooperated graphic being described in detail as follows:

Shown in Fig. 1, Fig. 2, Fig. 3 A, Fig. 3 B, IEEE-1394 test module of the present utility model, it mainly comprises a circuit board 1;

Described circuit board 1 is provided with the test module that array is made up of 1394 peripheral connectors 10, physical layer signal Processing interface 20, transport layer signal Processing core 30, central processing unit 40, voltage sampling and digital data conversion circuit 50, power supply stabilization circuit 60 and cresset display control circuit 70; Wherein, 1394 peripheral connectors 10 are connected with physical layer signal Processing interface 20, physical layer signal Processing interface 20 is again with after transport layer signal Processing core 30 is connected, be connected to a central processing unit 40 again, and its voltage sampling and digital data conversion circuit 50 are to be connected with 1394 peripheral connectors 10, can be to be measured after the voltage transitions of PC mainboard input becomes numerical data, together with other signal data by 1394 peripheral connector 10 inputs, together import in the central processing unit 40 and test, and by central processing unit 40 output one signal to cresset display control circuit 70, show the project of test at present, again above-mentioned gained data result is back in the testing software of computer-internal at last, is stored and show, and above-mentioned test module is connected with external power source 2 with a power supply stabilization circuit 60:

Described 1394 peripheral connectors 10, its can utilize a patchcord can be used to the test have 4Pin to 6Pin, and 6Pin is to the computer peripheral of two kinds of IEEE-1394 connecting lines of 6Pin joint geometry, and has protection loop 11, when being used for avoiding by 1394 peripheral connectors, 10 input external voltages, the chip that surging caused damages;

Described physical layer signal Processing interface 20 is to be used for handling the physical layer signal that the IEEE-1394 signal uses when transmission;

Described transport layer signal Processing core 30 is to be used for handling IEEE-1394 signal employed transport layer signal when transmission;

Described central processing unit 40 is correlation functions such as control of the conversion of the access decipher that is used for controlling the IEEE-1394 signal, voltage signal and test, peripheral circuit;

Described voltage sampling and digital data conversion circuit 50, it is to be used for the IEEE-1394 signal is converted in the simulated data of transmission the numerical data of central processing unit institute energy interpretation;

Described power supply stabilization circuit 60, it has the function of current limliting and pressure limiting, as each chip of the above-mentioned test module of protection, the excessive damage of importing because of external voltage when avoiding testing of voltage;

Described cresset display control circuit 70, it has the LED bulb of array different colours, and it is used for capturing the signal of test event with after central processing unit 40 directly is connected, and the light that sends appropriate color is as identification.

In sum, the circuit design of the utility model IEEE-1394 test module inside has been arranged in pairs or groups behind the dependence test software, has beneficial effect simple to operate and easy to use really.

Claims (1)

1. IEEE-1394 test module, it mainly comprises a circuit board; It is characterized in that:

Described circuit board is provided with the test module that array is made up of 1394 peripheral connectors, physical layer signal Processing interface, transport layer signal Processing core, central processing unit, voltage sample circuit, digital data conversion circuit, power supply stabilization circuit and cresset display control circuit; Wherein, 1394 peripheral connector families are connected with physical layer signal Processing interface, physical layer signal Processing interface is again with after transport layer signal Processing core is connected, be connected to a central processing unit again, described central processing unit control voltage sample circuit and digital data conversion circuit, and to the decipher in addition of described circuit gained data, test, simultaneously export a signal to the cresset display control circuit by central processing unit, show the project of test at present, again described gained data result is back in the testing software of computer-internal at last, stored and show, and described test module is connected with external power source with a power supply stabilization circuit;

Described 1394 peripheral connectors, its utilize a patchcord be used for the test have 4Pin to 6Pin, and 6Pin is to the computer peripheral of two kinds of IEEE-1394 connecting lines of 6Pin joint geometry, it has a protection loop, when being used for avoiding by 1394 peripheral connectors, 10 input external voltages, the chip that surging caused damages;

Described physical layer signal Processing interface is used to handle the physical layer signal that the IEEE-1394 signal uses when transmission;

Described transport layer signal Processing core is used to handle IEEE-1394 signal employed transport layer signal when transmission;

Described central processing unit is used to control the correlation functions such as control of the conversion of access decipher, voltage signal of IEEE-1394 signal and test, peripheral circuit;

Described voltage sample circuit, when transmitting, the voltage that its peripherals is exported is taken a sample at the IEEE-1394 signal;

Described digital data conversion circuit, it is used for the IEEE-1394 signal is converted in the simulated data of transmission the numerical data of central processing unit institute energy interpretation;

Described power supply stabilization circuit, it has the function of current limliting and pressure limiting, and is as each chip of the described test module of protection, excessive or voltage is excessive to be damaged because of the electric current of external voltage when avoiding testing;

Described cresset display control circuit, it has the LED bulb of array different colours, and it is used for capturing the signal of test event with after central processing unit directly is connected, and the light that sends appropriate color is as identification.

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