CN203338347U

CN203338347U - An interface circuit of a fault detection device for a computer motherboard

Info

Publication number: CN203338347U
Application number: CN2013203286675U
Authority: CN
Inventors: 梁赫西; 周密; 李靖; 毛宵; 黄晓东
Original assignee: Hubei Normal University
Current assignee: Hubei Normal University
Priority date: 2013-06-06
Filing date: 2013-06-06
Publication date: 2013-12-11
Anticipated expiration: 2023-06-06

Abstract

The utility model provides an interface circuit for a computer main board failure detection device, and belongs to the technical field of computers. The problem that in the prior art, an interface circuit can be connected and communicated with only one of an ISA bus and a PCI bus is solved. The interface circuit for the computer main board failure detection device comprises the PCI bus, the ISA bus and a PCI data output module. The PCI data output module comprises two ports. The two ports comprise the first port and the second port, wherein the first port is used for being communicated with the PCI bus, the second port is used for being communicated with the ISA bus, the first port is connected with the PCI bus, the second port is connected with a conversion module which is used for converting output signals of the ISA bus into PCI communication signals and outputting PCI address signals, the conversion module is connected with the ISA bus and a storage, the first port and the second port are used as the input ends of the interface circuit, and the output end of the PCI data output module is used as the output end of the interface circuit. The interface circuit can be compatible with the interface output of the ISA bus and the interface output of the PCI bus, and therefore practicality of the main board detection device is improved.

Description

A kind of interface circuit of computer motherboard failure detector

Technical field

The utility model belongs to field of computer technology, relates to a kind of interface circuit of computer motherboard failure detector.

Background technology

In real work, main frame is long-time to be used by the faults such as interface is loosening, interface burns out often occurring, cause main frame to start, need to be to being detected of computer motherboard technology status, especially for the mainboard of embedded computer, can not carry out under the condition that system disassembles, need to carry out the technology status evaluation to mainboard, need to carry out localization of fault fast to out of order mainboard, form examining report, dispose and reworking plan so that the supvr can efficiently determine.

Therefore, for the problems referred to above, people have carried out investigation widely, two kinds of testing tools of ubiquity on market at present, a kind of is strongly professional mainboard checkout equipment, be characterized in expensive, the detection means complexity, carry inconvenience, another kind is to take the mainboard pick-up unit that single-chip microcomputer is core, by being inserted in the operation conditions of monitoring mainboard on the vacant bus slot of computer motherboard, and failure code is presented on the liquid crystal digital module of test card, so that consulting technical manual, the testing staff carrys out the Judging fault reason, characteristics are cheap, use easy to carry.But the vacant bus slot of mainboard divides two kinds of isa bus and pci buss, the signal difference of two kinds of bus inputs, and the interface circuit of existing computer motherboard fault detect only has a bus interface, when interface circuit receives only the isa bus output signal, can't with the pci bus communication, in like manner, when interface circuit receives only the pci bus interface output signal, can't with the isa bus communication, thereby caused the mainboard pick-up unit sometimes can't carry out fault detect, lacked practicality.

Isa bus: Industry Standard Architecture industry standard architecture is that IBM Corporation is the bus standard that the PC/AT computer is formulated, and is 16 bit architectures, can only support the I/O equipment of 16, and data transmission rate is approximately 16MB/S.

PCI is the abbreviation of Peripheral Component Interconnect (Peripheral Component Interconnect standard), and it is the most widely used interface in current PC.

Summary of the invention

There are the problems referred to above in the utility model for existing technology, a kind of interface circuit of computer motherboard failure detector has been proposed, the interface circuit of this computer motherboard failure detector can compatible isa bus and pci bus interface output, has improved the practicality of mainboard pick-up unit.

The utility model is realized by following technical proposal: a kind of interface circuit of computer motherboard failure detector, comprise for exporting the pci bus of PCI address signal, be used for the pci data output module of exporting the isa bus of ISA address signal and being processed and export the pci data signal for receiving the PCI address signal, it is characterized in that, described pci data output module comprises that two for receiving the port of PCI address signal, described two ports comprise for the port one with the pci bus communication with for the port two with the isa bus communication, described port one is connected with pci bus, described port two is connected with for the isa bus output signal being changed into to the PCI communication signal and exporting the interconnecting module of PCI address signal, described conversion module is connected with isa bus, described conversion module also is connected with the storer for the storage chip configurator, the input end that described port one and port two are this interface circuit, the output terminal that the output terminal of described pci data output module is this interface circuit.

When the computer motherboard bus interface is isa bus, in the storer connected at conversion module, configurator is set, isa bus is connected with the conversion module input end, isa bus output ISA address signal, conversion module changes into the PCI communication signal by the ISA address signal, and the PCI communication signal is changed into to the PCI address signal export to the pci data output module, the pci data output module receives the PCI address signal by port two and processes output pci data signal, when the computer motherboard bus interface is pci bus, pci bus is connected with port one, output PCI address signal, the pci data output module receives the PCI address signal by port one and processes output pci data signal, by the computer motherboard pick-up unit, computer motherboard is carried out to the troubleshooting detection, this interface circuit compatibility the communication of isa bus and pci bus, improved the practicality of computer motherboard test card.

In the interface circuit of above-mentioned computer motherboard failure detector, described conversion module comprises for the ISA address signal by isa bus input and is converted into the conversion chip of PCI communication signal and is converted into the PCI address module of PCI address signal for transforming PCI communication signal that chip exports, the input end of described conversion chip is connected with isa bus, the output terminal of described conversion chip is connected with the input end of PCI address module, and the output terminal of described PCI address module is connected with the port two of pci data output module.Transform chip the ISA address signal of isa bus input is processed, change into the PCI communication signal, and export the PCI address signal to the pci data output module by the PCI address module, thereby realize the compatibility of isa bus and pci data output module.

In the interface circuit of above-mentioned computer motherboard failure detector, described conversion chip is connected with reservoir.Be provided with the configurator that transforms chip in storer.

In the interface circuit of above-mentioned computer motherboard failure detector, described conversion chip adopts the chip that model is PCI9052.Process frequency faster, performance is more stable.

In the interface circuit of above-mentioned computer motherboard failure detector, described pci bus and isa bus are arranged on the mainboard of computing machine.For the OPADD signal, mainboard is detected to troubleshooting.

Compared with prior art, the interface circuit of this computer motherboard failure detector has the following advantages: 1, by conversion module is set, can be simultaneously isa bus and pci bus be realized detecting troubleshooting, the troubleshooting of compatible isa bus and pci bus detects; 2, adopt the PCI9052 chip, process frequency faster, performance is more stable; 3, storer can be stored the configurator of PCI9052, has more practicality.

The accompanying drawing explanation

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

Embodiment

Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

As shown in Figure 1, a kind of interface circuit of computer motherboard failure detector, comprise for exporting the pci bus of PCI address signal, be used for the pci data output module of exporting the isa bus of ISA address signal and being processed and export the pci data signal for receiving the PCI address signal, pci bus and isa bus are arranged on the mainboard of computing machine, the pci data output module comprises that two for receiving the port of PCI address signal, two ports comprise for the port one with the pci bus communication with for the port two with the isa bus communication, port one is connected with pci bus, port two is connected with for the isa bus output signal being changed into to the PCI communication signal and exporting the interconnecting module of PCI address signal, described conversion module is connected with isa bus, conversion module also is connected with the storer for the storage chip configurator, the input end that port one and port two are this interface circuit, the output terminal that the output terminal of pci data output module is this interface circuit, conversion module comprises for the ISA address signal by isa bus input and is converted into the conversion chip of PCI communication signal and is converted into the PCI address module of PCI address signal for transforming PCI communication signal that chip exports, the input end that transforms chip is connected with isa bus, the output terminal that transforms chip is connected with the input end of PCI address module, the output terminal of PCI address module is connected with the port two of pci data output module, transforming chip is connected with reservoir, transform chip and adopt the chip that model is PCI9052, adopt the PCI9052 chip, process frequency faster, performance is more stable.

The principle of work of the interface circuit of this computer motherboard failure detector is as follows: when the computer motherboard bus interface is isa bus, in the storer that transforms the chip connection, configurator is set, isa bus is connected with the conversion module input end, isa bus output ISA address signal, transform chip the ISA address signal is changed into to the PCI communication signal, and by the PCI address module, the PCI communication signal is changed into to the PCI address signal and export to the pci data output module, the pci data output module receives the PCI address signal by port two and processes output pci data signal, when the computer motherboard bus interface is pci bus, pci bus is connected with port one, output PCI address signal, the pci data output module receives the PCI address signal by port one and processes output pci data signal, by the computer motherboard pick-up unit, computer motherboard is carried out to the troubleshooting detection, this interface circuit compatibility the communication of isa bus and pci bus, improved the practicality of computer motherboard test card.

Claims

1. an interface circuit of a computer motherboard fault detection device, comprising a PCI bus for outputting a PCI address signal, an ISA bus for outputting an ISA address signal and being used to receive a PCI address signal and process and output PCI data signals of a PCI data signal Output module, it is characterized in that, described PCI data output module comprises two ports that are used to receive PCI address signal, and described two ports comprise the port one that is used for communicating with PCI bus and the port that is used for communicating with ISA bus Port two, the port one is connected with the PCI bus, the port two is connected with an adapter module for converting the ISA bus output signal into a PCI communication signal and outputting the PCI address signal, and the conversion module is connected with the ISA bus , the conversion module is also connected with a memory for storing the chip configuration program, the port 1 and port 2 are the input ends of the interface circuit, and the output end of the PCI data output module is the output end of the interface circuit. the

2. the interface circuit of computer motherboard failure detection device according to claim 1, is characterized in that, described conversion module comprises the conversion chip that is used for converting the ISA address signal that ISA bus input is PCI communication signal and is used for The PCI communication signal that conversion chip outputs is converted into the PCI address module of PCI address signal, the input end of described conversion chip is connected with ISA bus, the output end of described conversion chip is connected with the input end of PCI address module, and described PCI address module The output end of the PCI data output module is connected with the port two. the

3. The interface circuit of the computer motherboard fault detection device according to claim 2, characterized in that, the conversion chip is connected with the memory. the

4. according to the interface circuit of claim 2 or 3 described computer motherboard fault detection devices, it is characterized in that, described conversion chip adopts the chip that model is PCI9052. the

5. the interface circuit of computer motherboard fault detection device according to claim 1, is characterized in that, described PCI bus and ISA bus are arranged on the motherboard of computer. the