CN201072549Y - GPIB-USB test instrument controller - Google Patents
GPIB-USB test instrument controller Download PDFInfo
- Publication number
- CN201072549Y CN201072549Y CNU2007201032912U CN200720103291U CN201072549Y CN 201072549 Y CN201072549 Y CN 201072549Y CN U2007201032912 U CNU2007201032912 U CN U2007201032912U CN 200720103291 U CN200720103291 U CN 200720103291U CN 201072549 Y CN201072549 Y CN 201072549Y
- Authority
- CN
- China
- Prior art keywords
- chip
- gpib
- usb
- bus
- control chip
- 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.)
- Expired - Lifetime
Links
Landscapes
- Information Transfer Systems (AREA)
Abstract
The utility model discloses a GPIB-USB testing instrument controller, which comprises a memory, a USB control chip, a GPIB main control chip, a CPLD chip, a GPIB data bus drive chip and a GPIB control signal drive chip. A PID number stored in the memory is sent to a PC by the USB control chip, a driver is matched by the PC according to the PID number, and the required firmware program of the USB control signal is downloaded to the internal RAM of the USB control chip, and the obtained instruction is executed by the USB control chip and then returns data; the GPIB main control chip is connected with the USB control chip, relevant orders of the USB control chip are executed by the chip, an interrupt signal is sent to the CPLD chip by the chip, GPIB data is sent to the GPIB data bus drive chip by the chip, and a GPIB control signal is sent to the GPIB control signal drive chip and received by the chip.
Description
Technical field
The utility model relates to a kind of measurement mechanism, specifically, relates to a kind of GPIB-USB testing tool controller.
Background technology
GPIB (General Purpose Interface Bus) bus interface generally is applied on the high-end surveying instrument instrument and uses, and uses automatic measurement for the convenience of the user.
USB (universal serial bus) (USB) is that design is used for connecting computer peripheral device originally, is a kind of bus interface that present computing machine extensively adopts.Because usb bus equipment can charged hot plug, have the characteristics of plug and play, so, be widely used in all types of industries and the civilian digital device.After adding new device, usb host meeting Auto-Sensing, the identification status of seeking device, and suitably driver is carried out configuration and setting.A device is only supported in connectivity port of traditional serial port.In addition, see through increase hub (hub) and connect more computer peripheral equipment.On personal computer now, usb connecting port has become basic outfit, and this expression need not be bought another special-purpose controller, as the interface of USB-Based data fatching apparatus or instrument.At present, Windows2000/SP/Me/98 all supports the USB-Based device, and when connecting data fatching apparatus and PC, USB is the binding instrument that expense is cheap, be simple and easy to usefulness; Moreover USB is from traditional serial port technology, sees through faster rate, hot plug function, built-in configuration operating system, branch-off cables technology or the like, enters rank to connecting multiple device in same connectivity port.
But existing surveying instrument is not supported USB, for realizing the PC control instrument, uses GPIB-PCI plug-in card realization PC to communicate by letter with surveying instrument usually.This pattern is not suitable for few PC of expansion slot and notebook, and does not support hot plug.The existing GPIB-USB controller in market is only supported the USB1.1 agreement, and message transmission rate is low.
The utility model content
The technical matters that the utility model solved provides a kind of GPIB-USB testing tool controller, has realized the conversion of USB serial data and GPIB parallel data, and has realized corresponding gpib bus control function, and the message transmission rate height.
Technical scheme is as follows:
GPIB-USB testing tool controller, comprise storer, described memory stores has PID number, it is characterized in that, also comprise: USB control chip, GPIB main control chip, CPLD chip, GPIB data bus chip for driving and GPIB control signal chip for driving, wherein, the USB control chip receives described PID number and sends to PC, the download internal RAM of USB control chip of PC, described USB control chip is carried out instruction and the return data that PC sends; Described GPIB main control chip is connected with described USB control chip, sends look-at-me and gives described CPLD chip, sends the GPIB data to described GPIB data bus chip for driving, sends and receive the GPIB control signal to GPIB control signal chip for driving.
Preferably, described USB control chip comprises USB2.0 transceiver, serial interface engine, enhancement mode 8051 microprocessors or internal RAM.
Preferably, described GPIB-USB controller is connected with PC by usb bus, is connected with the GPIB peripheral hardware by gpib bus.
Preferably, described storer is an eeprom memory, is connected with the USB control chip by iic bus.
Preferably, also comprise first power supply chip, described first power supply chip is connected with described USB control chip by usb bus, and described first power supply chip is a 3.3V voltage with described usb bus 5V voltage transitions, supplies with USB control chip, EEPROM storage chip and CPLD chip.
Preferably, also comprise the second source chip, described second source chip is connected with described USB control chip by usb bus, described second source chip is constant 5V voltage with usb bus 5V power source conversion, supplies with described GPIB main control chip, gpib bus data driving chip and GPIB control signal chip for driving.
It is in the Auto-Test System of standard that the utility model is incorporated into the distinct advantages that USB had with GPIB, to improving portable and Auto-Test System overall performance no external connection slot very big facilitation is arranged, especially seem flexible and efficient in the time of the connection desktop computer.
The utility model has been realized the conversion between USB universal serial bus and the GPIB parallel bus, thereby has realized the conversion of USB serial data and GPIB parallel data, and realizes corresponding gpib bus control function.The user is controlled various gpib interface testing meter and instruments at the scene by PC or notebook, finish operations such as data acquisition, analysis, storage, in addition, the utility model is supported USB2.0 agreement and IEEE488.2 standard, the user is prompt operation more, and the message transmission rate height.
Description of drawings
Fig. 1 is user mode figure of the present utility model;
Fig. 2 is a structural representation of the present utility model.
Embodiment
The gpib bus interface generally is applied on the high-end surveying instrument instrument and uses, and uses automatic measurement for the convenience of the user.
As shown in Figure 1, user mode is as follows.
GPIB-USB testing tool controller 11 is used for the conversion between USB universal serial bus and the GPIB parallel bus, carries out corresponding gpib bus control function simultaneously, and the gpib bus control function meets the corresponding standard of IEEE488.2.
The design of GPIB-USB testing tool controller is the scheme of comprehensive solution test of a system, software and hardware combining.The subject matter that needs to solve is to realize the conversion of USB serial data and GPIB parallel data, and realizes corresponding gpib bus control function.In the hardware configuration of the present utility model, the USB interface hardware chip is one of two key links in the hardware design, and the USB controller chip is responsible for realizing the physical data transmission between main frame and USB device.
As shown in Figure 2, the utility model GPIB-USB testing tool controller 11 comprises USB control chip, GPIB main control chip, CPLD chip, GPIB data bus chip for driving and GPIB control signal chip for driving.Memory stores has PID number, and storer is selected the EEPROM storage chip for use.
PC connects GPIB-USB testing tool controller 11 by usb bus.
First power supply chip is a 3.3V voltage with usb bus 5V voltage transitions, supplies with USB control chip, EEPROM storage chip and CPLD chip.
Because the USB power supply of PC or notebook is not constant 5V, drop to 4.6V sometimes, the second source chip is constant 5V voltage with usb bus 5V power source conversion, supplies with line control signal chip for driving use among GPIB main control chip, gpib bus data driving chip and the GPIB.
The USB control chip comprises USB2.0 transceiver, SIE (serial interface engine), enhancement mode 8051 microprocessors and 16Kbyte internal RAM.GPIB-USB testing tool controller 11 connects after the PC, the USB control chip starts operation, with the PC communication, PID number of being stored among the EEPROM sent to PC, PC is searched the coupling driver according to PID number that obtains, and downloads in the internal RAM of USB control chip by driver, enhancement mode 8051 microprocessors begin to carry out in the internal RAM, carry out instruction and return data that PC sends.D7 by usb bus orders to the relevant GPIB of command conversion one-tenth of eight data lines of D0 with the PC transmission, and the corresponding register of read-write GPIB main control chip allows GPIB main control chip move.The read-write control signal of USB control chip, enable signal output to the CPLD chip, by CPLD chip controls GPIB main control chip.And the USB control chip obtains the look-at-me of GPIB main control chip from CPLD.
Eeprom memory is by iic bus and the communication of USB control chip, stores PID number and uses for the USB control chip.
GPIB main control chip is carried out USB control chip related command, and sends look-at-me and give the CPLD chip; Send 8 GPIB data to GPIB data bus chip for driving in GPIB signal one side, send and accept 9 GPIB control signals to GPIB control signal chip for driving.
The CPLD chip is a FPGA (Field Programmable Gate Array) control chip, compatible 5V and 3.3V voltage.Do logic and sequential control for USB control chip and GPIB main control chip.
GPIB data bus chip for driving sends the Transistor-Transistor Logic level conversion of signals that transmits with GPIB main control chip and becomes the gpib bus signal; In like manner, the gpib bus conversion of signals that receives is become the Transistor-Transistor Logic level signal give GPIB main control chip.
GPIB control signal chip for driving and GPIB data bus chip for driving are similar, are to do the gpib bus control signal to drive use.
Claims (6)
1. GPIB-USB testing tool controller, comprise storer, described memory stores has PID number, it is characterized in that, also comprise: USB control chip, GPIB main control chip, CPLD chip, GPIB data bus chip for driving and GPIB control signal chip for driving, wherein, the USB control chip receives described PID number and sends to PC, the download internal RAM of USB control chip of PC, described USB control chip is carried out instruction and the return data that PC sends; Described GPIB main control chip is connected with described USB control chip, sends look-at-me and gives described CPLD chip, sends the GPIB data to described GPIB data bus chip for driving, sends and receive the GPIB control signal to GPIB control signal chip for driving.
2. GPIB-USB testing tool controller according to claim 1 is characterized in that, described USB control chip comprises USB2.0 transceiver, serial interface engine, enhancement mode 8051 microprocessors or internal RAM.
3. GPIB-USB testing tool controller according to claim 1 is characterized in that described GPIB-USB controller is connected with PC by usb bus, is connected with the GPIB peripheral hardware by gpib bus.
4. GPIB-USB testing tool controller according to claim 1 is characterized in that described storer is an eeprom memory, is connected with the USB control chip by iic bus.
5. GPIB-USB testing tool controller according to claim 1, it is characterized in that, also comprise first power supply chip, described first power supply chip is connected with described USB control chip by usb bus, described first power supply chip is a 3.3V voltage with described usb bus 5V voltage transitions, supplies with USB control chip, EEPROM storage chip and CPLD chip.
6. GPIB-USB testing tool controller according to claim 1, it is characterized in that, also comprise the second source chip, described second source chip is connected with described USB control chip by usb bus, described second source chip is constant 5V voltage with usb bus 5V power source conversion, supplies with described GPIB main control chip, gpib bus data driving chip and GPIB control signal chip for driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201032912U CN201072549Y (en) | 2007-01-19 | 2007-01-19 | GPIB-USB test instrument controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201032912U CN201072549Y (en) | 2007-01-19 | 2007-01-19 | GPIB-USB test instrument controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201072549Y true CN201072549Y (en) | 2008-06-11 |
Family
ID=39551106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201032912U Expired - Lifetime CN201072549Y (en) | 2007-01-19 | 2007-01-19 | GPIB-USB test instrument controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201072549Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401879A (en) * | 2010-09-19 | 2012-04-04 | 北京中星微电子有限公司 | Test method, test host and test system for USB function of chip |
| CN106201947A (en) * | 2016-06-30 | 2016-12-07 | 北京振兴计量测试研究所 | The GPIB means of communication based on self-defined bus and communication control unit |
| CN110908319A (en) * | 2019-12-17 | 2020-03-24 | 淮安信息职业技术学院 | Computer communication system based on GPIB interface |
-
2007
- 2007-01-19 CN CNU2007201032912U patent/CN201072549Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401879A (en) * | 2010-09-19 | 2012-04-04 | 北京中星微电子有限公司 | Test method, test host and test system for USB function of chip |
| CN106201947A (en) * | 2016-06-30 | 2016-12-07 | 北京振兴计量测试研究所 | The GPIB means of communication based on self-defined bus and communication control unit |
| CN106201947B (en) * | 2016-06-30 | 2019-08-27 | 北京振兴计量测试研究所 | The GPIB means of communication and communication control unit based on self-defined bus |
| CN110908319A (en) * | 2019-12-17 | 2020-03-24 | 淮安信息职业技术学院 | Computer communication system based on GPIB interface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1999045461A3 (en) | Improved compact flash memory card and interface | |
| WO2020057084A1 (en) | Display module test platform | |
| CN107368441A (en) | Configurable and power optimization integrated grid driver and Type C SoC for USB transmissions of electricity | |
| US20070197100A1 (en) | Type of hard disk interface device | |
| CN209842611U (en) | Multi-communication interface data exchange board card | |
| CN101419582B (en) | MVB/USB adapter based on SOPC technology and communication method thereof | |
| CN203260029U (en) | System chip prototype verification debugging device based on field programmable gate array (FPGA) | |
| CN201393230Y (en) | USB interface-based wireless network card testing device | |
| CN201072549Y (en) | GPIB-USB test instrument controller | |
| CN102736014A (en) | Usb interface testing device | |
| CN103116512A (en) | Method for upgrading firmware of CPLD (complex programmable logic device) | |
| CN100465904C (en) | Emulator of contact type intelligent card with USB interface | |
| CN100504723C (en) | USB data acquisition apparatus for power supply | |
| CN203894742U (en) | Programmer of automotive electric control unit (ECU) | |
| CN203350863U (en) | Bootstrap loading program circuit based on USB interface | |
| CN112835754A (en) | Portable multi-bus test equipment | |
| CN109359082B (en) | USB data real-time monitoring system and method based on FPGA | |
| CN201707664U (en) | ARINC429 testing equipment | |
| CN102567270A (en) | USB (universal serial bus)-to-I2C (inter-integrated circuit) adapter | |
| CN201084144Y (en) | USB free access channel | |
| CN206162511U (en) | Adjustable serial module of multichannel of compatible X86 and ARM framework platform | |
| CN216209527U (en) | GPIO interface state testing device | |
| CN215932621U (en) | PCIE-SATA interface circuit | |
| CN101329648B (en) | Contact smart card emulator capable of debugging ATR | |
| CN104793968A (en) | Vehicle electronic control unit program programming device and implementation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080611 |
|
| EXPY | Termination of patent right or utility model |