CN203164959U

CN203164959U - ARINC429 bus test board card

Info

Publication number: CN203164959U
Application number: CN2012206208137U
Authority: CN
Inventors: 蒋晓华; 董文岳; 龚永红; 唐芳福
Original assignee: ZHUHAI ORBITA CONTROL ENGINEERING Co Ltd
Current assignee: ZHUHAI ORBITA CONTROL ENGINEERING Co Ltd
Priority date: 2012-11-21
Filing date: 2012-11-21
Publication date: 2013-08-28
Anticipated expiration: 2022-11-21

Abstract

The utility model relates to an ARINC429 (Airlines Engineering Committee 429) bus test board card of a PCI (Programmable Communication Interface), which comprises a programmable chip, a PCI communication module and an ARINC429 bus interface module which are connected with the programmable chip, and a power module, wherein the PCI communication module is provided with the PCI. With the adoption of the PCI communication module with the PCI, the characteristics that a PCI bus is high in transmission speed and supports hot plug are fully used; the size of equipment is smaller; the ARINC429 bus test board card is convenient to carry and use; the programmable chip is designed to inject errors in ARINC429 bus standard equipment, and to decode and verify data downloaded by the ARINC429 bus standard equipment artificially; coping occasions in an error making process of a bus are convenient to simulate; and causes resulting in data errors can be searched during communication of an ARINC429 bus.

Description

A kind of ARINC429 bus test integrated circuit board

[technical field]

The utility model is particularly related to a kind of ARINC429 bus test integrated circuit board.

[background technology]

We know that avionic device is many based on the ARINC429 bus, and the usable range of ARINC429 bus will be more and more wider, and therefore, the test of this class of electronic devices (ARINC429 bus standard equipment), maintenance just seem and become more and more important.At present, ARINC429 bus test equipment all is for ARINC429 bus standard equipment and is located between the detection software of PC, so that being given to ARINC429 bus standard equipment by the ARINC429 bus, correct detection service data moves detection, but, ARINC429 bus test equipment generally all is based on the ISA interface with being connected of PC, because the isa bus transfer rate is low, the high-speed transfer that can not adapt to multi-channel A RINC429 bus, cause the cost height, volume is big, transfer rate is low, is unfavorable for applying of ARINC429 bus.

[utility model content]

The technical matters that will solve of the present utility model provides a kind of ARINC429 bus test integrated circuit board, its volume is less relatively, easy to use, can satisfy the high speed data transfer of multi-channel A RINC429 bus, and have the function of the error-detecting of makeing mistakes for the data that pass under ARINC429 bus standard equipment injection mistake and the ARINC429 bus standard equipment.

For achieving the above object, the utility model provides following technical scheme:

A kind of ARINC429 bus test integrated circuit board comprises

The PCI communication module, it comprises the pci interface that is connected with PC, is used for realizing that detection software and the programmable chip of being located at PC carry out exchanges data;

Programmable chip, it connects PCI communication module and ARINC429 bus interface module, be used for the data that pass under the described detection software are encoded or and inject wrong being given to ARINC429 bus standard equipment, and the data that will pass under ARINC429 bus standard equipment are decoded and verification to be given to described detection software;

The ARINC429 bus interface module is used for conversion ARINC429 bus level to realize the exchanges data of described programmable chip and described ARINC429 bus standard equipment;

And power module, be used for giving whole integrated circuit board power supply.

Be provided with in the described programmable chip: processor unit is used for the work of inner each module of control chip and each parts of chip exterior; ARINC429 bus protocol analysis module, be used for the data coding or and inject mistake, and with data decode and verification; Sendaisle sends to described ARINC429 bus interface module for setting the data of logic with encoded or also injection mistake; And receiving cable, be used for to set logic and receive the data that pass under the described ARINC429 bus interface module with to be decoded and verification.

Described ARINC429 bus interface module comprises ARINC429 bus level driver module and the ARINC429 bus level receiver module that is connected with described programmable chip respectively.

Described ARINC429 bus level driver module comprises a plurality of separate ARINC429 sendaisles, and described ARINC429 bus level receiver module comprises a plurality of separate ARINC429 receiving cables.

Described ARINC429 bus level driver module adopts the BD429 interface chip, and ARINC429 bus level receiver module adopts the DEI1044 interface chip.

Described PCI communication module comprises interconnective pci interface and PCI bridging chip, and described PCI bridging chip is connected with programmable chip, and pci interface is used for being connected with PC.

Described PCI bridging chip adopts the PCI9052 interface chip.

By above technical scheme as can be known, the utility model has the PCI communication module of pci interface by design, it is fast and support the characteristics of hot plug to take full advantage of the pci bus transmission speed, the feasible high speed data transfer that can satisfy multi-channel A RINC429 bus, easy to use relative with equipment volume less, be easy to carry; Designing programmable chip simultaneously has and artificial injects wrong to be given to ARINC429 bus standard equipment and the data that ARINC429 bus standard equipment passes under the ARINC429 bus are decoded and verification for the ARINC429 bus, the occasion of reply can be come out the cause investigation that causes data to be made mistakes in the ARINC429 bus communication process simultaneously when makeing mistakes with convenient simulation ARINC429 bus standard equipment.

[description of drawings]

Fig. 1 is structured flowchart of the present utility model;

Fig. 2 is internal hardware structured flowchart of the present utility model.

[embodiment]

As depicted in figs. 1 and 2, ARINC429 bus test integrated circuit board comprises PCI communication module, programmable chip, ARINC429 bus interface module and power module, the PCI communication module is connected with programmable chip respectively with the ARINC429 bus interface module, and power module is given whole integrated circuit board power supply.

The PCI communication module comprises interconnective pci interface and PCI bridging chip, and the PCI bridging chip is connected with programmable chip, and pci interface is used for being connected with PC.

Be provided with processor unit, ARINC429 bus protocol analysis module, sendaisle and receiving cable in the programmable chip, processor unit is used for the work of inner each parts of control chip and each parts of chip exterior; ARINC429 bus protocol analysis module be used for the data coding or and inject mistake, and with data decode and verification; Sendaisle be used for to set logic with encoded or and inject wrong data and send to described ARINC429 bus interface module, receiving cable is used for setting logic and receives the data that pass under the described ARINC429 bus interface module with to be decoded and verification.

The ARINC429 bus interface module comprises ARINC429 bus level driver module and ARINC429 bus level receiver module, ARINC429 bus level driver module is connected with the sendaisle of programmable chip, and ARINC429 bus level receiver module is connected with the receiving cable of programmable chip.

Power module, it gives whole integrated circuit board power supply, and it is input as+the 12V/-12V/+5V/+3.3V direct current, and output has+2.5V and 1.2V.

In the present embodiment, the concrete model of PCI bridging chip is PCI9052, can make multiple local bus be transformed on the pci bus fast by this chip; Programmable chip is fpga chip; ARINC429 bus level driver module adopts the BD429 interface chip, and it has two independently ARINC429 sendaisles; ARINC429 bus level receiver module adopts the DEI1044 interface chip, and it has four independently ARINC429 receiving cables.

During the utility model work, its pci interface is connected with PC, ARINC429 bus level driver module is connected with the ARINC429 bus of ARINC429 bus standard equipment respectively with ARINC429 bus level receiver module, realize exchanging between ARINC429 bus standard equipment and the detection software of being located at PC, its workflow specifically comprises two flow processs: send datamation flow process and reception datamation flow process.

Send the datamation flow process:

At first detect software in the PC operation, by it the relevant parameter of sendaisle is set, the parameter that arranges comprises the transmission baud rate, the information such as word length that send, this information is sent to programmable chip by pci interface, processor unit arranges sendaisle according to the parameter that passes under the PC, finish the initialization operation of sendaisle, the user is again by running on the detection software of PC then, send packet by pci bus through pci interface, this packet is through the coding of ARINC429 bus protocol analysis module, parallel data changes into the serial data that meets the ARINC429 bus transfer, in cataloged procedure, can inject mistake or not inject mistake packet according to detecting the instruction that passes under the software, import ARINC429 bus interface module by the transmission logic of setting with the form signal of Transistor-Transistor Logic level by sendaisle again, ARINC429 bus level driver module in the ARINC429 bus interface module is realized the output of ARINC429 bus standard electric signal and through ARINC429 bus input ARINC429 bus standard equipment, and whether the reaction by observing ARINC429 bus standard equipment is corresponding to the data of input to reach the occasion of reply when detecting ARINC429 bus standard equipment whether wrong purpose and convenient simulation ARINC429 bus standard equipment being made mistakes.

Receive the datamation flow process:

At first move upper computer software at PC, by it the relevant parameter of receiving cable is set, the parameter that arranges comprises the receiving cable baud rate, the information such as word length that receive, this information is sent to programmable chip by pci interface, processor unit arranges receiving cable according to the parameter that passes under the host computer, finish the initialization operation of receiving cable, then, ARINC429 bus level receiver module is carrying out level conversion by its a plurality of 429 receiving cables from the data that the ARINC429 bus receives respectively, it is decoded to enter ARINC429 bus protocol analysis module through receiving cable, serial data changes into the parallel data of accord with PCI interface transmission, simultaneously data are carried out verification, parallel data and check results realize uploading of data by the PCI communication module again, and the detection software that PC is located in operation the data in real time of receiving show, if wrong data, can navigate to is the mistake of which class, the mistake that for example is ARINC429 bus standard equipment self causes makeing mistakes of data, or the problem of ARINC429 bus causes makeing mistakes of data etc.

The utility model is not limited to above-described embodiment, based on simple replacement above-described embodiment, that do not make creative work, should belong to the scope that the utility model discloses.

Claims

1. ARINC429 bus test integrated circuit board is characterized in that comprising:

Programmable chip, it connects PCI communication module and ARINC429 bus interface module, its be used for the data that pass under the described detection software are encoded or and inject wrong being given to ARINC429 bus standard equipment, and the data that will pass under ARINC429 bus standard equipment are decoded and verification to be given to described detection software;

2. ARINC429 bus test integrated circuit board according to claim 1 is characterized in that, described ARINC429 bus interface module comprises ARINC429 bus level driver module and the ARINC429 bus level receiver module that is connected with described programmable chip respectively.

3. ARINC429 bus test integrated circuit board according to claim 2, it is characterized in that, described ARINC429 bus level driver module comprises a plurality of separate ARINC429 sendaisles, and described ARINC429 bus level receiver module comprises a plurality of separate ARINC429 receiving cables.

4. according to claim 2 or 3 described ARINC429 bus test integrated circuit boards, it is characterized in that described ARINC429 bus level driver module adopts the BD429 interface chip, ARINC429 bus level receiver module adopts the DEI1044 interface chip.

5. ARINC429 bus test integrated circuit board according to claim 1 is characterized in that, described PCI communication module comprises interconnective pci interface and PCI bridging chip, and described PCI bridging chip is connected with programmable chip, and pci interface is used for being connected with PC.

6. ARINC429 bus test integrated circuit board according to claim 5 is characterized in that, described PCI bridging chip adopts the PCI9052 interface chip.