CN205015434U - A test jig for burning record ware switching card - Google Patents
A test jig for burning record ware switching card Download PDFInfo
- Publication number
- CN205015434U CN205015434U CN201520797176.4U CN201520797176U CN205015434U CN 205015434 U CN205015434 U CN 205015434U CN 201520797176 U CN201520797176 U CN 201520797176U CN 205015434 U CN205015434 U CN 205015434U
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- China
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- module
- adapter
- analog switch
- control chip
- mcu control
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Abstract
The utility model discloses a test jig for burning record ware switching card, it includes the MCU control chip who links to each other with power input module, MCU control chip input port connection has button module, analog switch AD channel selection module, and the delivery outlet is connected with warning module, buzzer module, LED charactron display module, and input -output ports is connected with switching card interface module, the input port connection of switching card interface module and analog switch AD channel selection module, MCU control chip is connected with VDD short circuit detection circuitry, the analog switch AD channel selection module includes analog switch channel selection module and level conversion module, MCU control chip passes through level conversion module and is connected with the analog switch channel selection module, the analog switch channel selection module is connected with switching card interface module. It can the quick check have the trouble that the switching blocks, improves the detection efficiency of switching card, reduces workman intensity of labour, improvement production efficiency.
Description
Technical field
The utility model relates to Electronic Testing Technology field, refers more particularly to a kind of testing jig for cd-rom recorder adapter.
Background technology
BJX cd-rom recorder adapter is of a great variety, and the corresponding a kind of card extender of the MCU of each model, card extender has the golden finger cutting as memory bar (positive anti-communism 50 pins), for programming signal of transferring to burning pin corresponding to MCU.And when producing card extender, produce line employee in order to the components and parts detected on card extender and whether weld mistake, or rosin joint, or the problem such as short circuit, need to test each electrical voltage point one by one with multimeter, and whether the line of each programming signal on card extender is normal.Bring very burden to production, require a great deal of time and cost of labor.Prior art is: workman directly inserts cd-rom recorder adapter, and cd-rom recorder connects IC, direct burning, if burning success, then this card extender OK is described, otherwise this card extender has problem.Then carry out fault analysis to problematic card extender, analytic process is a loaded down with trivial details process, need with multimeter one by one electrical voltage point whether detect voltage normal, connecting line whether investigate by short circuit/open circuit one by one.Whole process length consuming time, but also waste IC be used for burning test.
Utility model content
The purpose of this utility model is for above problem, provides a kind of testing jig for cd-rom recorder adapter, and it can check out the fault of adapter fast, improves the detection efficiency of adapter, reduces labor strength, enhances productivity.
For realizing above object, the technical solution adopted in the utility model is: a kind of testing jig for cd-rom recorder adapter, it comprises the MCU control chip be connected with Power Entry Module, described MCU control chip input port is connected with key-press module, analog switch AD channel selecting module, delivery outlet is connected with alarm module, hummer module, LED/ numeral method module, and input/output port is connected with adapter interface module; Described adapter interface module is connected with the input port of analog switch AD channel selecting module; Described MCU control chip is connected with VDD short-circuit detecting circuit; Described analog switch AD channel selecting module comprises analog switch channel selecting module and level switch module; Described MCU control chip is connected with analog switch channel selecting module by level switch module; Described analog switch channel selecting module is connected with adapter interface module.
Further, described analog switch channel selecting module is provided with four, and every two connect a level switch module.
Further, have employed 50pin golden finger interface in described adapter interface module; Described MCU control chip is connected with adapter by golden finger interface.
Further, be provided with PNP type triode in described VDD short-circuit detecting circuit, the collector of triode is connected with MCU control chip.
Further, be provided with pull down resistor in described analog switch channel selecting module to be connected with switching simulator.
Further, have employed MC14504BD chip in described level switch module.
Further, have employed 78M05 chip in described Power Entry Module.
Further, be provided with adapter model in described key-press module and select up/down key, feeler switch.
Further, two different color LEDs are provided with in described alarm module.
The beneficial effects of the utility model:
Have employed MCU chip and automatically detect tested adapter, just can complete in 1 second to adapter quality detect, and adapter ID is write adapter, removes cd-rom recorder from and open amendment to adapter ID.Be presented on charactron by fault code, Manufacturing Worker, according to failure code, directly finds corresponding trouble spot to place under repair simultaneously.Its structure is simple, easy to operate, facilitates and produces line employee to the detection of adapter and fault repair, greatly reduce time and cost of labor, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is general frame circuit diagram of the present utility model.
Fig. 2 is power module circuitry figure in the utility model.
Fig. 3 is VDD short-circuit detecting circuit figure in the utility model.
Fig. 4 is analog switch channel module circuit diagram in the utility model.
Fig. 5 is level switch module circuit diagram in the utility model.
Embodiment
The technical solution of the utility model is understood better in order to make those skilled in the art; below in conjunction with accompanying drawing, the utility model is described in detail; the description of this part is only exemplary and explanatory, should not have any restriction to protection domain of the present utility model.
As Figure 1-5, annexation of the present utility model is: a kind of testing jig for cd-rom recorder adapter, it comprises the MCU control chip be connected with Power Entry Module, described MCU control chip input port is connected with key-press module, analog switch AD channel selecting module, delivery outlet is connected with alarm module, hummer module, LED/ numeral method module, and input/output port is connected with adapter interface module; Described adapter interface module is connected with the input port of analog switch AD channel selecting module; Described MCU control chip is connected with VDD short-circuit detecting circuit; Described analog switch AD channel selecting module comprises analog switch channel selecting module and level switch module; Described MCU control chip is connected with analog switch channel selecting module by level switch module; Described analog switch channel selecting module is connected with adapter interface module.
Preferably, described analog switch channel selecting module is provided with four, and every two connect a level switch module.
Preferably, have employed 50pin golden finger interface in described adapter interface module; Described MCU control chip is connected with adapter by golden finger interface.
Preferably, be provided with PNP type triode in described VDD short-circuit detecting circuit, the collector of triode is connected with MCU control chip.
Preferably, be provided with pull down resistor in described analog switch channel selecting module to be connected with switching simulator.
Preferably, have employed MC14504BD chip in described level switch module.
Preferably, have employed 78M05 chip in described Power Entry Module.
Preferably, be provided with adapter model in described key-press module and select up/down key, feeler switch.
Preferably, two different color LEDs are provided with in described alarm module.
The utility model principle is set forth:
As Fig. 2: Power Entry Module: DC socket input 15V, for adapter provides the VPP signal of 15V, then through 78M05, produces the VCC signal of a 5V, and is supplied to MCU work.
Three buttons are provided with, KEY+: adapter model selection+key in key-press module; KEY-: adapter model selection-key; KEYTEST: start feeler switch.
Be provided with the light emitting diode of 2 different colours in alarm module, when test finds fault, red light emitting diodes is bright, and when testing normal, green LED is bright.
Hummer module is used for auditory tone cues Output rusults.
KEY+/KEY-button selects corresponding tested model adapter, and adapter model can be presented on charactron by digital pipe display circuit simultaneously.KEYTEST presses and starts to test.Test result directly shows mistake/normal outcome by light emitting diode, and subsidiary hummer carries out auditory tone cues output.When test finds fault: red diode is bright, and hummer sends and ticks ... alarm NG, and fault code is shown by LED/ numeral method module; When testing normal: green LED lamp is bright, hummer drips prompting OK.
As Fig. 3: the VDD short-circuit detecting circuit on adapter: in the normal situation of tested card extender, I2C_VDD is high, then Q1 triode cut-off, and MCU control chip incoming end is low level, then represent that I2C_VDD is normal.If the I2C_VDD on card extender is abnormal, I2C_VDD shorted to earth, then Q1 triode ON, MCU control chip incoming end level uprises, then represent that I2C_VDD is abnormal.MCU will drive charactron to point out I2C_VDD short trouble code.
LED/ numeral method module: adopt 4 Digital sum pipe displays, the adapter model that testing jig is selected before powering on and showing power-off, maximum display 9999.After having tested, if test finds fault, then can show corresponding failure code, display ErXX, wherein XX represents 1-99 kind failure code.
Adapter interface module: the golden finger interface adopting 50PIN altogether, the IO of MCU is connected to the programming signal pin of this socket, simulation cd-rom recorder exports programming signal, different MCU burnings, the programming signal pin used is different, and he needs MCU automatically to identify required programming signal according to adapter model.Adapter being provided with socket is that corresponding programming signal is transferred by adapter, different adapter, and signal connected mode is different, and equally, he needs MCU automatically to identify that required programming signal is transferred in adapter socket according to adapter model.Golden finger interface being provided with pin is that the IO of MCU is connected on adapter by this line, and writes corresponding id information on adapter, by it, can test adaptor card read-write whether normal, and be written with adapter id information simultaneously.
As Fig. 4: analog switch AD channel selecting module: programming signal is transferred to golden finger interface through adapter, the AD that signal delivers to MCU detects mouth, golden finger interface is provided with 32 pins for adapter interface, and MCU does not have so many AD mouths to be directly connected, so need 4 analog switch channel selecting module to select, these 32 signal pins are chosen 4 corresponding delivery outlets, be connected to 4 AD mouths on MCU control chip.Solve the inadequate problem of AD mouth of MCU.Because the VCC of analog switch channel selecting module is VPP 15V, and the IO of MCU control chip powers as 5V, then channel control signals can not selecting properly passage, so need to pass through level switch module, Fig. 5 shows, gives analog switch channel selecting module again and select after the signal that MCU exports is carried out level conversion.
Function is set forth:
1, power on, hummer " drips " sound, and memory is shown the adapter ID surveyed last time by charactron, and red LED lamp and green LED lamp are alternately glimmered, then extinguish.
2, the adapter ID needing test is switched by " KEY+/KEY-" button, numeral method adapter ID model (0001-9999)
3, press " KEYTEST " key, start test.Concrete test process is: VDD and the GND whether short circuit first detecting 24C02; Then start to write adapter id information in 24C02, write and read id information again, whether unanimously detect id information; Whether the connection situation and the burning voltage thereof that finally start each programming signal PIN of test adaptor card is correct.Mistake is detected in middle any step, with regard to detection of end, hummer " dichloro-diphenyl-dichlorothane " three acoustic alarms, red light emitting diodes is lighted, numeral method Erxx (xx represents fault code); If test OK, then hummer " drips " sound, and green LED lamp is lighted.Complete test.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above example just understands method of the present utility model and core concept thereof for helping.The above is only preferred implementation of the present utility model, should be understood that, due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the prerequisite not departing from the utility model principle, some improvement, retouching or change can also be made, also above-mentioned technical characteristic can be combined by rights; These improve retouching, change or combination, or the design of utility model and technical scheme are directly applied to other occasion without improving, and all should be considered as protection domain of the present utility model.
Claims (9)
1. the testing jig for cd-rom recorder adapter, it comprises the MCU control chip be connected with Power Entry Module, it is characterized in that, described MCU control chip input port is connected with key-press module, analog switch AD channel selecting module, delivery outlet is connected with alarm module, hummer module, LED/ numeral method module, and input/output port is connected with adapter interface module; Described adapter interface module is connected with the input port of analog switch AD channel selecting module; Described MCU control chip is connected with VDD short-circuit detecting circuit; Described analog switch AD channel selecting module comprises analog switch channel selecting module and level switch module; Described MCU control chip is connected with analog switch channel selecting module by level switch module; Described analog switch channel selecting module is connected with adapter interface module.
2. a kind of testing jig for cd-rom recorder adapter as claimed in claim 1, it is characterized in that, described analog switch channel selecting module is provided with four, and every two connect a level switch module.
3. a kind of testing jig for cd-rom recorder adapter as claimed in claim 1, is characterized in that, have employed 50pin golden finger interface in described adapter interface module; Described MCU control chip is connected with adapter by golden finger interface.
4. a kind of testing jig for cd-rom recorder adapter as claimed in claim 1, it is characterized in that, be provided with PNP type triode in described VDD short-circuit detecting circuit, the collector of triode is connected with MCU control chip.
5. a kind of testing jig for cd-rom recorder adapter as claimed in claim 1, is characterized in that, be provided with pull down resistor and be connected with switching simulator in described analog switch channel selecting module.
6. a kind of testing jig for cd-rom recorder adapter as claimed in claim 1, is characterized in that, have employed MC14504BD chip in described level switch module.
7. a kind of testing jig for cd-rom recorder adapter as claimed in claim 1, is characterized in that, have employed 78M05 chip in described Power Entry Module.
8. a kind of testing jig for cd-rom recorder adapter as claimed in claim 1, is characterized in that, is provided with adapter model and selects up/down key, feeler switch in described key-press module.
9. a kind of testing jig for cd-rom recorder adapter as claimed in claim 1, is characterized in that, be provided with two different color LEDs in described alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520797176.4U CN205015434U (en) | 2015-10-14 | 2015-10-14 | A test jig for burning record ware switching card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520797176.4U CN205015434U (en) | 2015-10-14 | 2015-10-14 | A test jig for burning record ware switching card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205015434U true CN205015434U (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520797176.4U Expired - Fee Related CN205015434U (en) | 2015-10-14 | 2015-10-14 | A test jig for burning record ware switching card |
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|---|---|
| CN (1) | CN205015434U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957354A (en) * | 2018-09-28 | 2018-12-07 | 珠海智融科技有限公司 | A kind of device and mode detection method of multi-mode battery capacity indication |
| CN111158280A (en) * | 2019-12-26 | 2020-05-15 | 北京时代民芯科技有限公司 | High-precision analog-to-digital converter fuse automatic burning system and method |
| CN112083662A (en) * | 2020-08-25 | 2020-12-15 | 通号城市轨道交通技术有限公司 | Vehicle-mounted interface platform monitoring device and system |
| CN113126714A (en) * | 2021-04-08 | 2021-07-16 | 山东英信计算机技术有限公司 | Server memory connection device, server memory test system and method |
-
2015
- 2015-10-14 CN CN201520797176.4U patent/CN205015434U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957354A (en) * | 2018-09-28 | 2018-12-07 | 珠海智融科技有限公司 | A kind of device and mode detection method of multi-mode battery capacity indication |
| CN111158280A (en) * | 2019-12-26 | 2020-05-15 | 北京时代民芯科技有限公司 | High-precision analog-to-digital converter fuse automatic burning system and method |
| CN112083662A (en) * | 2020-08-25 | 2020-12-15 | 通号城市轨道交通技术有限公司 | Vehicle-mounted interface platform monitoring device and system |
| CN113126714A (en) * | 2021-04-08 | 2021-07-16 | 山东英信计算机技术有限公司 | Server memory connection device, server memory test system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20201014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |