CN209842611U - Multi-communication interface data exchange board card - Google Patents
Multi-communication interface data exchange board card Download PDFInfo
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- CN209842611U CN209842611U CN201920882475.6U CN201920882475U CN209842611U CN 209842611 U CN209842611 U CN 209842611U CN 201920882475 U CN201920882475 U CN 201920882475U CN 209842611 U CN209842611 U CN 209842611U
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Abstract
The utility model relates to an automatic change test system integration field, for a many communication interface data exchange integrated circuit boards, this exchange card includes: the system comprises an ARM9 processing module and an FPGA processing module, wherein the ARM9 processing module and the FPGA processing module use a high-bandwidth bus to transmit data, the ARM9 processing module is provided with an Ethernet interface, a USB interface, two UART interfaces and a CAN interface, and the FPGA processing module is provided with two UART interfaces, an RS-232 interface, an RS-485 interface, an SPI interface and an I interface2C interface and parallel data interface, and realizes Ethernet interface/USB interface/CAN interface/UART interface/RS-232 interface/RS-485 interface/SPI interface/I2C interface-Data exchange between parallel data interfaces.
Description
Technical Field
The invention relates to the field of automation test system integration, in particular to a multi-communication interface data exchange board card.
Background
In the field of automation test system integration, instrument devices such as a program-controlled alternating current/direct current power supply, an electronic load, an oscillograph recorder, a data acquisition instrument and the like, and sensors such as a thermosensitive element, a photosensitive element, a gas sensitive element, a force sensitive element, a magnetic sensitive element, a humidity sensitive element, a sound sensitive element and the like are generally required to be used. And the industrial personal computer coordinates and controls the instruments and the sensors to complete the function index test of the tested product.
The industrial personal computer generally only has a limited number of USB, Ethernet and UART ports, different instrument devices and sensor communication interfaces are not uniform, and common communication interfaces comprise an Ethernet interface/a USB interface/a CAN interface/a UART interface/an RS-232 interface/an RS-485 interface/an SPI interface/an I2C interface/a parallel data interface and the like. Common communication interface conversion in the current market is generally conversion extension of a single communication interface, such as a Universal Serial Bus (USB) to 4-path universal asynchronous receiver/transmitter (UART) interface, an Ethernet to 2-path RS-485 communication and the like, and cannot meet data exchange between a host and instrument equipment and sensors of various different communication interfaces.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a multi-communication interface data exchange board card, which solves the problems of insufficient host ports in the integration of an automatic test system, information exchange between instruments and sensors of different communication interfaces and host, and hardware platform integration.
The present invention is achieved in such a way that,
a multi-communication interface data exchange board, the exchange comprising: the system comprises an ARM9 processing module and an FPGA processing module, wherein the ARM9 processing module and the FPGA processing module are connected by using a high-bandwidth bus, the ARM9 processing module is provided with an Ethernet interface, a USB interface, two UART interfaces and a CAN interface, and the FPGA processing module is provided with two UART interfaces, an RS-232 interface, an RS-485 interface, an SPI interface and an I interface2A C interface and a parallel data interface,
the USB interface, the Ethernet interface and the UART interface are used as a system main communication interface or a slave communication interface, a CAN interfaceRS-232 interface, RS-485 interface, SPI interface, I2The interface C and the parallel data interface are slave communication interfaces, are connected with the PC through the master communication interface, are connected with the instrument equipment and the sensor through the slave communication interface, and the board card completes data exchange of the master communication interface and the slave communication interface, so that the communication function of the PC host and the instrument equipment and the sensor with different interfaces is realized.
Further: the ARM9 processing module and the FPGA processing module adopt Xilinx ZYNQ-7010SoC and comprise dual coresCortexTMAn A9 processor and an Artix-7 series FPGA processor.
Further: the board card uses a USB-to-UART chip, a Micro USB interface is reserved on the board card, and a user can directly use the USB connecting line board card to carry out serial port communication with a computer.
Further: the RS-485 interface is 2 paths, the CAN interface is two paths, and the SPI interface is 4 paths.
Further: the Ethernet interface is an external expansion Ethernet PHY chip, and realizes a 2-path 10/100/1000Mbps self-adaptive RJ-45 Ethernet interface;
the USB interface is an external expansion USB PHY chip, and realizes a 2-path high-speed USB2.0 interface;
the CAN interface is a 2-path CAN interface realized by an SN65HVD230CAN bus transceiver of an external expansion TI company;
the UART interface has 4 paths of UART interfaces, wherein two paths are realized by an ARM9 processing module, a USB-to-UART chip is used, a Micro USB interface is reserved on a board card, a user can directly use a common USB connecting wire to connect a computer USB port to the board card to realize UART communication, and the other two paths are realized by an FPGA processing module and are led out through two groups of 3P contact pins to form a CMOS level interface.
The RS-232 interface converts the CMOS level of the FPGA I/O pin into RS-232 standard by using an RS-232 chip and reserves the RS-232 standard through a DB-9 standard connector;
the RS-485 interface adopts a two-wire bus topological structure for wiring, 32 nodes can be connected on the same bus in a hanging mode, the RS-485 interface is provided with 2 paths of RS-485 interfaces, 2P wiring terminals are reserved through 2 groups of 2P wiring terminals, and the 2P wiring terminals are the 'A' end and the 'B' end of the RS-485 interface respectively.
The SPI interface is reserved by 4 groups of 4P contact pins;
I2c interface, board card has 2 ways of I2The interface C is reserved by the 2 groups of 2P inserting needles;
the parallel data interface is used for leading out a 32-bit data bus and a clock signal line from the FPGA processing module and isolating the external input and output by using a high-speed driving isolation chip;
the SD card interface is a 9-pin self-elastic micro SD card base and supports a 64GB TF card.
Further: the board card comprises a system memory unit, a DDR3 DRAM chip of 4Gbit, a bus width of 32bit, a highest running speed of 533MHz, and a memory interface connected with the ARM processing module.
Further: the board card comprises a system power supply unit which is used for supplying power to all devices on the board, the input of a system power supply is 5V2A, the input power supply generates 3.3V through a low dropout regulator (LDO) chip, and the input power supply is converted into three power supplies of 1.8V, 1.5V and 1.0V through 3 DC-DC chips.
Further: the board card comprises a JTAG downloading and debugging unit.
Further: the board card comprises a clock crystal oscillator unit, an 33.333MHz active crystal oscillator is adopted to provide clock input, and a clock required by the running of the ARM9 processing module is generated through an internal PLL unit.
Further: the integrated circuit board comprises a man-machine interaction unit, the man-machine interaction unit comprises keys, LED indicating lamps and an LCD, and the LED indicating lamps are arranged on each communication interface and indicate the working state of each communication interface.
Compared with the prior art, the invention has the beneficial effects that:
the multi-communication interface data exchange board realizes Ethernet interface/USB interface/CAN interface/UART interface/RS-232 interface/RS-485 interface/SPI interface/I2Data exchange between C-interface/parallel data interface. The conversion of the existing communication interface is generally a conversion extension of a single communication interface, such as a USB to 4-way UART interface, an EthernetAnd 2-path RS-485 communication is switched, and the like, so that data exchange between the host and various instrument equipment and sensors with different communication interfaces cannot be met.
The USB interface, the Ethernet interface and the UART interface can be used as a system main communication interface or a slave communication interface, and the board card supports multi-pair data exchange between the main communication interface and the slave communication interface. The problems of insufficient host ports in the integration of the automatic test system, information exchange among instruments and equipment with different communication interfaces, sensors and the host and hardware platform integration are solved.
Drawings
Fig. 1 is a hardware block diagram of a multi-communication interface conversion board card according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A multi-communication interface conversion board card is shown in figure 1, and comprises an ARM9 processing module, an FPGA processing module, an Ethernet interface, a USB interface, a CAN interface, a UART interface, an RS-232 interface, an RS-485 interface, an SPI interface, and an I interface2The system comprises a C interface, a parallel data interface, an SD card interface, a system memory unit, a man-machine interaction unit, a system power supply unit, a JTAG download debugging unit and a clock crystal oscillator unit.
The ARM9 processing module and the FPGA processing module adopt Xilinx ZYNQ-7010SoC and comprise dual coresCortexTM-a9 processor and Artix-7 family FPGA, ARM9 processing module and FPGA processing module using high bandwidthAn AXI bus connection for data transfer. The ZYNQ-7000 series SoC supports 2xUSB2.0(OTG) and 2xTri-mode thousand with DMAThe gigabit Ethernet, 2xSD/SDIO, supports 2xUART, 2xCAN2.0B and 32Bit GPIO. The operation speed of the ZYNQ-7000 series SoC ARM core can reach 1GHz, and the DDR3 internal memory is supported by the integrated memory controller.
The ARM9 processing module is provided with an Ethernet interface, a USB interface, two UART interfaces and a CAN interface, and the FPGA processing module is provided with two UART interfaces, an RS-232 interface, an RS-485 interface, an SPI interface and an I2The USB interface, the Ethernet interface and the UART interface are realized by an ARM9 processing module. The ZYNQ-7000 series SoC supports 2xUSB2.0(OTG) and 2xTri-mode gigabit Ethernet with DMA, and realizes 10/100/1000Mbps adaptive network transmission rate through an externally-extended Ethernet PHY chip and realizes data communication of a high-speed USB2.0 Host mode and a Slave mode through an externally-extended USB PHY. The ZYNQ-7000 series SoC supports two paths of UART communication, a board card uses a USB-to-UART chip, a Micro USB interface is reserved on the board card, and a user can directly use a USB connecting line board card to carry out serial port communication with a computer. The USB interface, the Ethernet interface and the UART interface can be used as a system main communication interface to be connected with a PC or a slave communication interface to be connected with instrument equipment.
The multi-channel RS-485/SPI/I2C/RS-232/CAN communication interface comprises 2 channels of RS-485 interfaces, two channels of CAN interfaces, 4 channels of SPI interfaces and I2And C, interface. Wherein the CAN interface is realized by an ARM part, 2-path CAN communication is supported by ZYNQ-7000 series SoC, and the SN65HVD230(3.3V) CAN bus transceiver of the externally-expanded TI company realizes the CAN communication function. The RS-485 interface realizes RS-485 communication with the highest communication speed of 10Mbps by an FPGA processing module and an SP3485 chip manufactured and produced by Exar company. SPI interface and I2The C interface is directly realized by the FPGA processing module. Specifically, the method comprises the following steps:
the Ethernet interface, ZYNQ-7010SoC ARM9 processing module supports 2xTri-mode gigabit Ethernet with DMA. An external Ethernet PHY chip realizes a 2-way 10/100/1000Mbps self-adaptive RJ-45 Ethernet interface.
The USB interface, ZYNQ-7010SoC ARMARM9 processing module supports 2xUSB2.0(OTG), with DMA. And the USB PHY chip is expanded to realize a 2-path high-speed USB2.0 interface.
The CAN interface, ZYNQ-7010SoC ARM9 processing module supports 2xCAN2.0B, and the SN65HVD230(3.3V) CAN bus transceiver of the externally-extended TI company realizes a 2-channel CAN interface.
And the board card is provided with 4 paths of UART interfaces. The two routes are realized by ARM9 processing modules, the ZYNQ-7010SoC ARM9 processing module supports 2xUART, the board card uses a USB-to-UART chip, a Micro USB interface is reserved on the board card, and a user can directly use a common USB connecting wire to connect a computer USB port to the board card to realize UART communication. And the other two paths are realized by an FPGA processing module, 2 paths of UART ports are instantiated, the UART ports are led out through two groups of 3P contact pins and are CMOS level interfaces, and the 3P contact pins are respectively defined as TX, RX and GND.
And the board card is provided with 4 paths of RS-232 interfaces and is realized by an FPGA processing module. The FPGA I/O pin CMOS level is converted to RS-232 standard using RS-232 chip and set aside through DB-9 standard connector.
RS-485 interface, RS-485 are half duplex communication, adopt two-wire bus topological structure to connect, can articulate 32 nodes on the same bus, the integrated circuit board has 2 way RS-485 interfaces, is realized by FPGA processing module. And 2 paths of RS-485 ports are arranged, and the CMOS level of an FPGA I/O pin is converted into the RS-485 standard by using an RS-232 chip. The 2P wiring terminals are reserved through 2 groups of 2P wiring terminals, and the 2P wiring terminals are respectively an RS-485 interface end A and an end B.
And the SPI interface and the board card are provided with 4 paths of SPI interfaces and are realized by an FPGA processing module. The 4P pins are set aside by 4 groups of 4P pins, which are defined as MISO (master data in), MOSI (master data out), SCLK (clock), CS (chip select), respectively.
I2C interface, board card has 2 ways of I2And the interface C is realized by an FPGA processing module. Set aside by 2 groups of 2P connector pins, the 2P pins are defined as SDA (serial data line) and SCL (serial clock line), respectively.
And the parallel data interface is used for leading out a 32-bit data bus and a clock signal line from the FPGA processing module, isolating the external input and output by using a high-speed driving isolation chip and improving the driving capability of the interface.
The SD card interface and the ZYNQ-7010SoC ARM processing system support an SDIO interface, an SDIO signal transmission mode comprises three modes of SPI, 1-bit and 4-bit, the 4-bit mode is designed and used, data lines are arranged at equal length, and the reading and writing speed is high. A9-pin self-elastic micro SD card seat is reserved on the board card and supports a 64GB TF card.
The system memory unit comprises a QSPI Flash and a DDR3 DRAM. The board card is provided with a QSPI Flash with the size of 256 MB. The board card is matched with a DDR3 DRAM chip with 4Gbit, the bus width is 32bit, the highest running speed can reach 533MHz, and the board card is controlled by a memory interface of an ARM9 processing module to store user data.
The system power supply unit is used for supplying power to all devices on the board. The input of a system power supply is 5V2A, the input power supply generates 3.3V through a low dropout regulator (LDO) chip, and the input power supply is converted into three power supplies of 1.8V, 1.5V and 1.0V through a 3-path DC-DC chip. The 3.3V power supply supplies power for the ZYNQ core processor IO, the Ethernet, the USB-to-serial port chip, the parallel data bus driving isolation chip, the CAN chip, the RS-485 chip, the serial port, the SD card and the like; 1.8V is ZYNQ core processor auxiliary voltage and supplies power for a PLL part, a USB2.0 part, an Ethernet PHY, a USB PHY and the like of the processor; the DDR3 is powered by 1.5V through a termination voltage regulator TITPS 51200.
A JTAG download debug unit is included for downloading.
The ZYNQ core processor ARM9 clock input device comprises a clock crystal oscillator unit, wherein an 33.333MHz active crystal oscillator is matched on a board to provide clock input for an ARM9 processing module of a ZYNQ core processor, and a clock required by ARM operation is generated through an internal PLL unit. Clock source is provided by 125MHz of Ethernet PHY chip to drive user logic circuit in FPGA.
The man-machine interaction unit comprises a key, an LED indicator light and an LCD display. The user can display the information configuration system, the starting or stopping of each communication interface, the working mode and the like through the keys and the LCD display. Each communication interface is provided with an LED indicator light for indicating the working state of each communication interface, the indicator light is turned on or off to indicate whether the communication interface is started, and the port is marked by flickering to indicate that data is transmitted.
The board card is provided with an LCD display and user keys, and a user can configure the system in a man-machine interaction mode.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A multi-communication interface data exchange board card is characterized by comprising: the system comprises an ARM9 processing module and an FPGA processing module, wherein the ARM9 processing module and the FPGA processing module are connected by using a high-bandwidth bus, the ARM9 processing module is provided with an Ethernet interface, a USB interface, two UART interfaces and a CAN interface, and the FPGA processing module is provided with two UART interfaces, an RS-232 interface, an RS-485 interface, an SPI interface and an I interface2A C interface and a parallel data interface,
the USB interface, the Ethernet interface and the UART interface are used as a system main communication interface or a system slave communication interface, a CAN interface, an RS-232 interface, an RS-485 interface, an SPI interface and an I2The interface C and the parallel data interface are slave communication interfaces, are connected with the PC through the master communication interface, are connected with the instrument equipment and the sensor through the slave communication interface, and the board card completes data exchange of the master communication interface and the slave communication interface, so that the communication function of the PC host and the instrument equipment and the sensor with different interfaces is realized.
2. The multi-communication-interface data exchange board card of claim 1, wherein the ARM9 processing module and the FPGA processing module are Xilinx ZYNQ-7010SoC, including dual coresCortexTMAn A9 processor and an Artix-7 series FPGA processor.
3. The multi-communication-interface data exchange board card of claim 1, wherein the board card uses a USB to UART chip, a Micro USB interface is left on the board card, and a user can directly use a USB connection board card to perform serial communication with a computer.
4. The multi-communication-interface data exchange board of claim 1,
the RS-485 interface is 2 paths, the CAN interface is two paths, and the SPI interface is 4 paths.
5. The multi-communication-interface data exchange board card of claim 1, wherein:
the Ethernet interface is an external expansion Ethernet PHY chip, and realizes a 2-path 10/100/1000Mbps self-adaptive RJ-45 Ethernet interface;
the USB interface is an external expansion USB PHY chip, and realizes a 2-path high-speed USB2.0 interface;
the CAN interface is a 2-path CAN interface realized by an SN65HVD230CAN bus transceiver of an external expansion TI company;
the UART interface is provided with 4 paths of UART interfaces, wherein two paths of UART interfaces are realized by an ARM9 processing module, a USB-to-UART chip is used, a Micro USB interface is reserved on a board card, a user can directly connect a USB port of a computer to the board card by using a common USB connecting wire to realize UART communication, and the other two paths of UART interfaces are realized by an FPGA processing module and are led out by two groups of 3P contact pins to form a CMOS level interface;
the RS-232 interface converts the CMOS level of the FPGA I/O pin into RS-232 standard by using an RS-232 chip and reserves the RS-232 standard through a DB-9 standard connector;
the RS-485 interface is connected by adopting a two-wire bus topological structure, 32 nodes can be connected on the same bus in a hanging mode, the RS-485 interface is provided with 2 paths of RS-485 interfaces and is reserved through 2 groups of 2P wiring terminals, and the 2P wiring terminals are the 'A' end and the 'B' end of the RS-485 interface respectively;
the SPI interface is reserved by 4 groups of 4P contact pins;
I2c interface, board card has 2 ways of I2The interface C is reserved by the 2 groups of 2P inserting needles;
the parallel data interface is used for leading out a 32-bit data bus and a clock signal line from the FPGA processing module and isolating the external input and output by using a high-speed driving isolation chip;
the SD card interface is a 9-pin self-elastic micro SD card base and supports a 64GB TF card.
6. The multi-communication-interface data exchange board card of claim 1, wherein: the board card comprises a system memory unit, a DDR3 DRAM chip of 4Gbit, a bus width of 32bit, a highest running speed of 533MHz, and a memory interface connected with the ARM processing module.
7. The multi-communication-interface data exchange board card of claim 1, wherein: the board card comprises a system power supply unit which is used for supplying power to all devices on the board, the input of a system power supply is 5V2A, the input power supply generates 3.3V through a low dropout regulator (LDO) chip, and the input power supply is converted into three power supplies of 1.8V, 1.5V and 1.0V through 3 DC-DC chips.
8. The multi-communication-interface data exchange board card of claim 1, wherein: the board card comprises a JTAG downloading and debugging unit.
9. The multi-communication-interface data exchange board card of claim 1, wherein: the board card comprises a clock crystal oscillator unit, an 33.333MHz active crystal oscillator is adopted to provide clock input, and a clock required by the running of the ARM9 processing module is generated through an internal PLL unit.
10. The multi-communication-interface data exchange board card of claim 1, wherein: the integrated circuit board comprises a man-machine interaction unit, the man-machine interaction unit comprises keys, LED indicating lamps and an LCD, and the LED indicating lamps are arranged on each communication interface and indicate the working state of each communication interface.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110245101A (en) * | 2019-06-13 | 2019-09-17 | 吉林大学 | A kind of more communication interface datas exchange board and its realize system |
| CN112416839A (en) * | 2020-11-02 | 2021-02-26 | 光华临港工程应用技术研发(上海)有限公司 | System for realizing UART (universal asynchronous receiver transmitter) communication |
| CN112636931A (en) * | 2020-12-29 | 2021-04-09 | 广东高云半导体科技股份有限公司 | Ethernet interface circuit |
| CN113489594A (en) * | 2021-06-04 | 2021-10-08 | 北京中航双兴科技有限公司 | PCIE real-time network card based on FPGA module |
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2019
- 2019-06-13 CN CN201920882475.6U patent/CN209842611U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110245101A (en) * | 2019-06-13 | 2019-09-17 | 吉林大学 | A kind of more communication interface datas exchange board and its realize system |
| CN110245101B (en) * | 2019-06-13 | 2024-06-18 | 吉林大学 | Multi-communication interface data exchange board card and implementation system thereof |
| CN112416839A (en) * | 2020-11-02 | 2021-02-26 | 光华临港工程应用技术研发(上海)有限公司 | System for realizing UART (universal asynchronous receiver transmitter) communication |
| CN112636931A (en) * | 2020-12-29 | 2021-04-09 | 广东高云半导体科技股份有限公司 | Ethernet interface circuit |
| CN112636931B (en) * | 2020-12-29 | 2022-07-12 | 广东高云半导体科技股份有限公司 | Ethernet interface circuit |
| CN113489594A (en) * | 2021-06-04 | 2021-10-08 | 北京中航双兴科技有限公司 | PCIE real-time network card based on FPGA module |
| CN113489594B (en) * | 2021-06-04 | 2023-12-19 | 北京中航双兴科技有限公司 | PCIE real-time network card based on FPGA module |
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