CN210573751U - Extensible chip connectivity test equipment - Google Patents
Extensible chip connectivity test equipment Download PDFInfo
- Publication number
- CN210573751U CN210573751U CN201921906714.3U CN201921906714U CN210573751U CN 210573751 U CN210573751 U CN 210573751U CN 201921906714 U CN201921906714 U CN 201921906714U CN 210573751 U CN210573751 U CN 210573751U
- Authority
- CN
- China
- Prior art keywords
- chip
- connectivity test
- shell
- chip connectivity
- expandable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Tests Of Electronic Circuits (AREA)
Abstract
The utility model discloses an expandable chip connectivity test device, which relates to the field of test devices, and comprises a shell, wherein a PCB board for controlling the expandable chip connectivity test device is arranged in the shell, a data connecting line for transmitting data is arranged between adjacent expandable chip connectivity test devices, data interfaces for connecting the data connecting line are arranged at two sides of the shell, a power interface for connecting a power supply is arranged at one end of the shell, a tube shell convenient for replacing a test chip and a signal indicator lamp for indicating action are arranged above the shell, a dial switch for controlling the address position of the expandable chip connectivity test device is arranged on the shell, and the data connecting line, the signal indicator lamp and the dial switch are respectively connected with the PCB board, so that the time is saved by simultaneously measuring a plurality of chips, the utility model provides a RS232 agreement is used for managing the orderly received signal of a plurality of extensible chip connectivity test equipment and signals sent.
Description
Technical Field
The utility model relates to a test equipment field, in particular to extensible chip connectivity test equipment.
Background
At present, the mainstream chip connectivity test equipment can only test one chip and needs to be read by an upper computer according to different commands sent by each PIN to be tested, if a plurality of chips to be tested can only test one chip and the upper computer sends the command to take down for another repeated test or simultaneously uses more test equipment to be connected with the upper computer for reading, the efficiency of the former is too low, and the cost of the latter is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide an extensible chip connectivity test equipment that can simultaneous measurement multi-disc chip.
The utility model provides a technical scheme that its technical problem adopted is: an expandable chip connectivity test device comprises a shell, a PCB board used for controlling the expandable chip connectivity test device is arranged in the shell, a data connecting line used for transmitting data is arranged between adjacent expandable chip connectivity test devices, data interfaces used for connecting the data connecting line are arranged on two sides of the shell, a power supply interface used for connecting a power supply is arranged at one end of the shell, a tube shell used for replacing a test chip conveniently and a signal indicator lamp used for indicating the effect are arranged above the shell, a dial switch used for controlling the address bit of the expandable chip connectivity test device is arranged on the shell, the data connecting line, the signal indicator lamp and the dial switch are respectively connected with the PCB board used for controlling the expandable chip connectivity test device, and the data connecting line is used for transmitting data between adjacent expandable chip connectivity test devices, the data interface is used for connecting a data connecting line, the tube shell is convenient for replacing the test chip, the signal indicator lamp is used for displaying the test condition, the dial switch is used for controlling the address bit of the extensible chip connectivity test equipment, and the transmission bus protocol is used for managing orderly receiving signals and sending signals of the extensible chip connectivity test equipment.
Further, the method comprises the following steps: the PCB is provided with a micro control unit and a chip selection switch comprising a plurality of pins, the chip selection switch and the dial switch are respectively connected with the micro control unit, the micro control unit is used for controlling the expandable chip connectivity test equipment, and the chip selection switch is used for ensuring that a certain pin to be tested is connected with the constant current source and the rest pins are grounded.
Further, the method comprises the following steps: the protocol of the data connecting line is an RS232 protocol, the transmission distance of the RS232 protocol can reach more than ten meters, the length can be continuously extended through the repeater, and even if the number of the extensible chip connectivity test equipment is the largest, signal attenuation cannot be generated.
Further, the method comprises the following steps: the chip selection switches are 4 36-to-1 chip selection switches, so that the maximum number of the testing pins of the single chip of the expandable chip connectivity testing equipment is 36 × 4-144.
Further, the method comprises the following steps: the data connecting line is a 5pin buckle line.
Further, the method comprises the following steps: the power interface is connected with a direct current stabilized power supply to prevent voltage drop, so that the output is a stable constant current source.
Further, the method comprises the following steps: the dial switch is a 16-address-bit dial switch.
The utility model has the advantages that: the utility model discloses can realize the simultaneous measurement multi-disc chip and save the time, the utility model provides a RS232 agreement is used for managing the orderly received signal of a plurality of extensible chip connectivity test equipment and signals sent, RS232 agreement transmission distance can reach tens meters still can continue to extend length through the repeater, even can not produce the signal attenuation in the condition that extensible chip connectivity test equipment quantity is the most, the chip selection switch is used for all the other pin ground connections when guaranteeing certain pin switch-on constant current source that awaits measuring, power interface switch-on direct current constant voltage power supply prevents to produce the pressure drop for output is stable constant current source.
Drawings
FIG. 1 is a schematic structural diagram of an expandable chip connectivity test apparatus;
FIG. 2 is a schematic structural diagram of a PCB;
FIG. 3 is a flowchart of the operation of the expandable chip connectivity test apparatus;
labeled as: 1. a housing; 2. a data link; 3. a data interface; 4. a power interface; 5. a pipe shell; 6. a signal indicator light; 7. a PCB board; 8. a micro control unit; 9. and a chip selection switch.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
An expandable chip connectivity test device as shown in fig. 1, comprising a housing 1, a PCB board 7 for controlling the expandable chip connectivity test device is disposed inside the housing 1, a data connection line 2 for transmitting data is disposed between adjacent expandable chip connectivity test devices, data interfaces 3 for connecting the data connection line 2 are disposed on two sides of the housing 1, a power interface 4 for connecting a power supply is disposed at one end of the housing 1, a tube case 5 for facilitating replacement of a test chip and a signal indicator 6 for indicating function are disposed above the housing 1, a dial switch for controlling an address of the expandable chip connectivity test device is disposed on the housing 1, the data connection line 2, the signal indicator 6 and the dial switch are respectively connected to the PCB board 7, and the PCB board 7 is used for controlling the expandable chip connectivity test device, the data connection line 2 is used for transmitting data between adjacent expandable chip connectivity test devices, the data interface 4 is used for connecting the data connection line 2, the tube shell 5 is convenient for replacing the test chip, the signal indicator lamp 6 is used for displaying the test condition, the signal indicator lamp 6 is turned on and off after being electrified to indicate that the test is completed, the dial switch is used for controlling the address bit of the expandable chip connectivity test devices, the transmission bus protocol is used for managing orderly receiving and sending signals of the plurality of expandable chip connectivity test devices, and the chip is a product.
On the basis, the PCB 7 is provided with a micro control unit 8 for controlling expandable chip connectivity test equipment and a chip selection switch 9 comprising a plurality of pins, the chip selection switch 9 and the dial switch are respectively connected with the micro control unit 8, the micro control unit 8 is used for controlling the expandable chip connectivity test equipment, the chip selection switch 9 is used for ensuring that a certain pin to be tested is connected with a constant current source, and other pins are grounded, the micro control unit 8 can be an STM32F101 or an STM32F102, and the STM32F102 is selected in the embodiment.
On the basis, the protocol of the data connection line 2 is an RS232 protocol, the transmission distance of the RS232 protocol can reach more than ten meters, the length can be continuously extended through the repeater, and signal attenuation can not be generated even under the condition that the number of extensible chip connectivity test equipment is the largest.
On the basis, the chip selection switch 9 selects 1 from 36 to 4 chip selection switches 9, so that the maximum number of test pins of the single chip of the scalable chip connectivity test device is 36 × 4 to 144.
On the basis, the data connecting wire 2 is a 5pin buckle wire.
On the basis, the power interface 4 is connected with a direct current stabilized power supply to prevent voltage drop, so that the output is a stable constant current source.
On the basis, as shown in fig. 3, the dial switch is a 16-address-bit dial switch, so that sixteen devices can be supported, wherein the device with 0-bit address is the master device by default, and the rest are slave devices, and the master device is responsible for communication and command receiving and sending with the upper computer and the slave machines.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. An expandable chip connectivity test device, comprising a housing (1), characterized in that: the interior of the shell (1) is provided with a PCB (7) used for controlling the expandable chip connectivity test equipment,
a data connecting line (2) for transmitting data is arranged between the adjacent expandable chip connectivity test devices, data interfaces (3) for connecting the data connecting line (2) are arranged on two sides of the shell (1), a power interface (4) for connecting a power supply is arranged at one end of the shell (1),
the device comprises a shell (1), and is characterized in that a tube shell (5) convenient for replacing a test chip and a signal indicator lamp (6) for indicating are arranged above the shell (1), a dial switch for controlling an address bit of expandable chip connectivity test equipment is arranged on the shell (1), and a data connecting line (2), the signal indicator lamp (6) and the dial switch are respectively connected with a PCB (7).
2. The scalable chip connectivity test device of claim 1, wherein: the PCB (7) is provided with a micro control unit (8) for controlling the expandable chip connectivity test equipment and a chip selection switch (9) comprising a plurality of pins, and the chip selection switch (9) and the dial switch are respectively connected with the micro control unit (8).
3. The scalable chip connectivity test device of claim 1, wherein: the protocol of the data connecting line (2) is RS232 protocol.
4. The scalable chip connectivity test device of claim 1, wherein: the chip selection switches (9) are 4 36-chip selection 1-chip selection switches (9).
5. The scalable chip connectivity test device of claim 1, wherein: the data connecting line (2) is a 5pin buckle line.
6. The scalable chip connectivity test device of claim 1, wherein: the power supply interface (4) is connected with a direct current stabilized voltage power supply.
7. The scalable chip connectivity test device of claim 1, wherein: the dial switch is a 16-address-bit dial switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921906714.3U CN210573751U (en) | 2019-11-07 | 2019-11-07 | Extensible chip connectivity test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921906714.3U CN210573751U (en) | 2019-11-07 | 2019-11-07 | Extensible chip connectivity test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210573751U true CN210573751U (en) | 2020-05-19 |
Family
ID=70660425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921906714.3U Active CN210573751U (en) | 2019-11-07 | 2019-11-07 | Extensible chip connectivity test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210573751U (en) |
-
2019
- 2019-11-07 CN CN201921906714.3U patent/CN210573751U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110531998B (en) | Optical module and firmware programming method thereof | |
| CN112100102B (en) | Interface management circuit, graphic signal generator and USB TYPE-C patch cord | |
| CN107462786B (en) | A kind of matrix comprehensive tester and test method | |
| CN205105224U (en) | Micropower wireless communication module testing arrangement | |
| CN102736014A (en) | Usb interface testing device | |
| CN204789920U (en) | A FPGA disposes system for integrated circuit test | |
| CN210573751U (en) | Extensible chip connectivity test equipment | |
| TW201423413A (en) | Apparatus and method for monitoring signals transmitted in bus | |
| JP2006100884A (en) | Relaying apparatus with best position search function | |
| CN109168093B (en) | Positioning management device and method for optical fiber port on ODN | |
| KR20160148921A (en) | Portable Test Apparatus for Semiconductor Apparatus and Test Method Using the Same | |
| CN109344099B (en) | Wireless debugging and downloading device for FPGA application system | |
| CN103389932A (en) | Interface testing device | |
| CN105702187A (en) | Interface circuit and test device | |
| CN102411528A (en) | MXM (Mobile PCI-Express Module)-interface testing-connecting card and testing system provided with same | |
| CN204517986U (en) | A kind of HDMI data wire tester | |
| CN208110030U (en) | A kind of communication test plate of ammeter communication module | |
| CN102647229B (en) | XFP (10 Gigabit Small Form Factor Pluggable) interface optical module self-loop method and device | |
| CN203324427U (en) | Wiring harness on-off detector | |
| CN104062530A (en) | Mobile terminal hardware fault detecting device and method | |
| CN210465520U (en) | Digital oscilloscope capable of being used in cooperation with smart phone | |
| CN211061971U (en) | One-to-two test host and system | |
| CN210201830U (en) | Support modularization circuit of multiple wireless module | |
| CN210155335U (en) | Testing device for multimode navigation receiver | |
| CN219715566U (en) | Intelligent probe for oscilloscope and oscilloscope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |