CN1427561A - VXI module capable of function reconfiguration - Google Patents
VXI module capable of function reconfiguration Download PDFInfo
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- CN1427561A CN1427561A CN01131890A CN01131890A CN1427561A CN 1427561 A CN1427561 A CN 1427561A CN 01131890 A CN01131890 A CN 01131890A CN 01131890 A CN01131890 A CN 01131890A CN 1427561 A CN1427561 A CN 1427561A
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Abstract
A VXI module with reconfigured functions is composed of VXI interface, logic address setting-up unit, and VXI interface connector, and features that not more than 6 functional unit pinch boards are used. Each pinch board has relative functional unit and connector for connecting the functional unit to VXI interface. Each functional unit has an individual driver program and a logic address. Several pinch boards are mounted on a carrier board with one slot in a VAX cabinat. Its advantages are high system integration efficiency and low cost.
Description
Technical field
The invention belongs to technical field of measurement and test, specifically is the reconfigurable VXI of a kind of function (VMEbus Extensions for Instrumentation) module.
Background technology
The vxi bus test platform is the 21 century instrument bus system and the outstanding platform of Auto-Test System that generally acknowledges, its software and hardware standard has opening, interchangeability and modular characteristics.VXI module instrument is easy to be integrated into the Auto-Test System of different purposes, has good interoperability, the message transmission rate height, and the reliability height, easy-maintaining, volume is little, and is in light weight, low in energy consumption, and mobility is good.The kind of vxi bus module instrument has covered traditional electronic instrument field and field tests such as current advanced Aero-Space, military affairs, mechanics of communication at present.
As everyone knows, functions such as various test and data acquisition, storage and processing, transmission and control be finished, various modular assembly circuit must be needed.But from the establishment and the management view of VXIbus system, they all are basic, the minimum logical blocks of VXIbus system, are referred to as VXI " device " usually (device).In the VXI system, each device must have the unique logical address in 0～255, and this address is used for other devices in it and the VXI system are made a distinction.The slot device blocks of VXI mainframe box has and occupies a groove position, also have and occupy a plurality of grooves positions, and it is not necessarily corresponding one by one with device with unique logical address, according to device scale and complexity, a single impression die piece corresponding device is arranged, also there is the single impression die piece to comprise several devices, even also has the multiple-grooved module only to comprise the situation of device.The difference of the communications protocol of supporting according to device, the VXI device can be divided into four classes such as message base device, register base device, memory base device and extended device.In addition, on VMEbus bus basis, the VXI standard has defined A, B, C, D four generic module sizes.
When designing the VXI module at present, normally an instrument module occupies one or more VXI cabinet groove positions, but only occupies a logical address.Module specification, functional unit typing back software and hardware can't change substantially.The single logical address VXI module of tradition is formed as shown in Figure 1, single logical address VXI module comprises: the logical address of VXI interface, functional unit device, VXI interface is provided with unit and 96PIN DIN connector, the VXI interface links to each other with VXI System Backplane bus by the 96PIN DIN connector, and functional unit is connected with the VXI interface.The VXI interface is the communication bridge of local function unit and vxi bus, and its interface specification can be according to the needs design of communications protocol.The logical address of module adopts static setting (SC), and unique in system.
The instrument development person is depended on user's demand to the design of the function of VXI module.Functions of modules is programmable very complicated, also programmable very simple, promptly can be general, can be again special-purpose.For system integration user, the cost performance of system is very important.
Because the outstanding advantage of VXI makes that comparing other hardware testing system costs with its establishment test macro wants high.Any commercial apparatus module, no matter the function power, available function is a part wherein concerning general system integration user.System is complicated more, and the type of modules that needs is many more, the waste that what can bring the test fund when doing the system integration.In addition during the special-purpose VXI module of system integration person oneself exploitation, if the function simplicity of design, system integration efficient is not high under the situation of system's groove position anxiety, and the overlapping investment of VXI design part, cost higher (, all the more so) for the designer of VXI knowledge shortcoming.
Summary of the invention
Existing development technique and development scheme above shortcomings when the objective of the invention is to overcome the special-purpose VXI module of system integration person oneself exploitation, a kind of general VXI module capable of function reconfiguration is provided, so that VXI Development of Module job simplification, reduce development cost, improve the efficient of the system integration.
The VXI module capable of function reconfiguration that the present invention proposes, comprise the VXI interface, the logical address of VXI interface is provided with unit and VXI interface connector, it is characterized in that comprising: no more than 6 functional unit buckles, on each functional unit buckle function corresponding unit component and connector are set, described functional unit device is connected with the VXI interface by connector, each functional unit device is furnished with independently modular instrument drivers, the logical address that is connected with the VXI interface is provided with the unit can be logical address of each functional unit cell configuration, and the VXI interface links to each other with VXI System Backplane bus by the VXI interface connector.
Advantage of the present invention compared with the prior art is as follows:
It adopts the carrier veneer of VXI module size to add the VXI modular structure form of function buckle, some functional unit devices are arranged on the module carrier veneer of a single groove in the mode of buckle, several buckle instruments (device) take a VXI cabinet groove position, but the software and hardware functional unit in the module is VXI module flexible configuration itself in system, with VXI type of device register definitions on buckle, and other VXI register definitions is in carrier single board interface logic, realize the independence and the modularization of buckle driver, improved the utilance and the level of integrated system of unit slot for complication system.
The VXI module designer need not to pay close attention to the design of VXI interface, promptly need not VXI knowledge or only needs a small amount of VXI knowledge, just can concentrate one's energy to finish the design of functional unit circuit, and modular design is oversimplified.
The VXI interface once designs just and puts things right once and for all, and saves the design iterations cost, has improved system integration efficient greatly, reduces system cost.
Description of drawings
Fig. 1 is traditional single logical address VXI module composition frame chart;
Fig. 2 is the configurable VXI module of a function of the present invention exemplary embodiments composition frame chart.
Embodiment
The technical specification that the present invention refers to has VXIbus Specification VXI-1 2.0 (IEEEStd 1155) and VMEbus Standard IEC821.
Further describe below in conjunction with the configurable VXI module composition of function shown in Figure 2.
VXI module capable of function reconfiguration shown in Figure 2, comprise: the VXI interface, the logical address of VXI interface is provided with the unit, VXI interface connector and 4 functional unit buckles, on each functional unit buckle function corresponding unit component and connector are set, described functional unit device is connected with the VXI interface by connector, each functional unit device is furnished with independently modular instrument drivers, the logical address that is connected with the VXI interface is provided with the unit can be logical address of each functional unit cell configuration, and the VXI interface links to each other with VXI System Backplane bus by the VXI interface connector.
Fig. 2 scheme a single groove C size (realize nearly 4 VXI function elements in the mode of buckle on 340 * 233.35mm) the VXI module carrier veneer, promptly a module slot bit stealing 4 logical addresses.VXI module carrier veneer provides the interface resource that is simple and easy to usefulness for each buckle.Each device has independently modular instrument drivers, and this brings great convenience for the functional configuration of system integration software and hardware.
Such as, in certain system integration task, need provide test resources such as E1 (primary group), HDLC (high speed data link), E3 (tertiary group), mailbox for UUT (Unit under Test).Do not have on the single module market of these four kinds of functions and can provide simultaneously, the words of the single module of oneself exploitation are special-purpose again, not necessarily use all functions in the other system integration servers, perhaps only use one of them functional resources.If buy ready-made module when doing the system integration, realize these test function resources with several VXI modules possibly, increased system cost again.
If above some test resources are made buckle form of the present invention, both taken system minimum groove position, improve VXI functions of modules configuration flexibility (the buckle resource can be used in the system of any needs) again, simultaneity factor, Development of Module degree of progress speed reduce the system synthesis cost.
On VXI module shown in Figure 2, for each functional unit device be the function buckle give one independently the static logic address switch be provided with.Adopt highly dense bilateral connector to be connected between buckle and the VXI interface.The addressing space that 4 function buckles are mapped to vxi bus is the VXIA16/A24 addressing system.In fact VXI module shown in Figure 2 is made up of general module carrier and buckle two parts.
Module carrier VXI interface except finish the VMEbus bus timing to memory read/write sequential conversion, provide 4 independently ROAK (Release on Acknowledge) interrupter realize the interrupt function of 4 buckles, all VXI interface configuration registers (removing the type of device register) of 4 buckles also are provided.
It is as follows that VXI module carrier veneer specifically offers the interface resource of each buckle:
1) 8K, 16 bit data addressing spaces;
2) the output read-write is directly deciphered in part A 16 spaces, comprising the read signal (address offset amount 02H) of VXI type of device register;
3) A24 space read-write;
4) system clock (16MHz);
5) system reset;
6) ± 12V ,+5V ,+three kinds of power supplys of 3.3V, maximum power 50W;
7) buckle index signal on the throne.
Above resource is all delivered on 4 buckles by highly dense bilateral connector.
Buckle function and carrier veneer VXI interface combine and just constitute complete VXI module, but buckle has independence separately again.An outstanding feature of the present invention be 4 buckles shared a VXI interface logic, but realized the function of 4 VXI modules.As everyone knows, the unique identify label of VXI module is exactly a model sign indicating number (Model code) separately, by VXI type of device register definitions.In order to realize hardware, software (instrument drivers) modularization, simplify the exploitation of terminal test procedure development, the present invention has arrived this register definitions on the buckle specially.From the resource that the carrier veneer provides, the subboard port design is very simple, promptly mainly realizes interface decoding and VXI type of device register is provided.In the exemplary embodiments, the buckle size can be 170 * 47.5mm.
The module hardware design can be carried out in two steps.The first step is design general module carrier veneer earlier, provides buckle required enough interface resources, is fixed up after the VXI interface specification typing simultaneously, just puts things right once and for all later on.Second step required all kinds of VXI buckle functional resources of design according to the system integration.Because subboard port is very simple, therefore can break away from VXI interface independent design, promptly not needing has too many understanding even not understand to VXI, also can concentrate on designing and developing of functional resources.
The various combination of VXI carrier veneer and all kinds of resource buckles has just been realized the flexible configuration of functions of modules and System Integration Test function.
Among Fig. 2 embodiment, carrier veneer VXI interface logic that 4 buckles are shared, also the VXI interface logic can be made in respectively on the subboard port as a kind of replacement scheme, this scheme has increased the design complexity (promptly design buckle and equal to design real VXI module) of buckle undoubtedly.
In addition, though the present invention realizes 4 buckles (functional unit device) on the carrier veneer, be not limited to 4 buckles.Can be designed to the form of configurable 1～6 buckle according to actual needs, be preferably designed as 4 or 2 functional unit buckle forms, buckle size and VXI interface logic can design as required.
The present invention successfully applies on the testing equipment of certain product as the part of the system integration.
Claims (5)
1, a kind of VXI module capable of function reconfiguration, comprise the VXI interface, the logical address of VXI interface is provided with unit and VXI interface connector, it is characterized in that comprising: no more than 6 functional unit buckles, on each functional unit buckle function corresponding unit component and connector are set, described functional unit device is connected with the VXI interface by connector, each functional unit device is furnished with independently modular instrument drivers, the logical address that is connected with the VXI interface is provided with the unit can be logical address of each functional unit cell configuration, and the VXI interface links to each other with VXI System Backplane bus by the VXI interface connector.
2, according to the described VXI module capable of function reconfiguration of claim 1, it is characterized in that: be provided with 2 or 4 functional unit buckles.
3, according to the described VXI module capable of function reconfiguration of claim 1, it is characterized in that: described functional unit device all is arranged on the VXI module carrier veneer of a single groove in the mode of buckle.
4, according to the described VXI module capable of function reconfiguration of claim 3, it is characterized in that: described VXI module carrier veneer provides interface resource for each buckle.
5, according to the described VXI module capable of function reconfiguration of claim 1, it is characterized in that: the connector on the described functional unit buckle is highly dense bilateral connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011318902A CN1192524C (en) | 2001-12-20 | 2001-12-20 | VXI module capable of function reconfiguration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011318902A CN1192524C (en) | 2001-12-20 | 2001-12-20 | VXI module capable of function reconfiguration |
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| Publication Number | Publication Date |
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| CN1427561A true CN1427561A (en) | 2003-07-02 |
| CN1192524C CN1192524C (en) | 2005-03-09 |
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| CNB011318902A Expired - Fee Related CN1192524C (en) | 2001-12-20 | 2001-12-20 | VXI module capable of function reconfiguration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346329C (en) * | 2005-04-30 | 2007-10-31 | 哈尔滨工业大学 | Zero greeve controller with universal series bus interface |
| WO2008086640A1 (en) * | 2007-01-04 | 2008-07-24 | Zte Corporation | A modularized back-board |
| WO2021208805A1 (en) * | 2020-04-13 | 2021-10-21 | 中兴通讯股份有限公司 | Configuration method for logical address space of hardware single board, device, and storage medium |
-
2001
- 2001-12-20 CN CNB011318902A patent/CN1192524C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346329C (en) * | 2005-04-30 | 2007-10-31 | 哈尔滨工业大学 | Zero greeve controller with universal series bus interface |
| WO2008086640A1 (en) * | 2007-01-04 | 2008-07-24 | Zte Corporation | A modularized back-board |
| CN101401054B (en) * | 2007-01-04 | 2014-03-26 | 中兴通讯股份有限公司 | A modularized back-board |
| WO2021208805A1 (en) * | 2020-04-13 | 2021-10-21 | 中兴通讯股份有限公司 | Configuration method for logical address space of hardware single board, device, and storage medium |
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| Publication number | Publication date |
|---|---|
| CN1192524C (en) | 2005-03-09 |
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Granted publication date: 20050309 Termination date: 20161220 |