CN114968884A - Multifunctional display and control terminal and construction method - Google Patents
Multifunctional display and control terminal and construction method Download PDFInfo
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- CN114968884A CN114968884A CN202210502578.1A CN202210502578A CN114968884A CN 114968884 A CN114968884 A CN 114968884A CN 202210502578 A CN202210502578 A CN 202210502578A CN 114968884 A CN114968884 A CN 114968884A
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- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 4
- 230000006870 function Effects 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 13
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- 238000012423 maintenance Methods 0.000 claims description 3
- 230000009131 signaling function Effects 0.000 claims description 3
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- G—PHYSICS
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- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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Abstract
The invention provides a multifunctional display and control terminal and a construction method thereof, and solves the technical problems of poor universality and narrow application range of the conventional terminal. The method comprises the following steps: a Loongson 3A3000 processor is adopted for data processing, and Loongson 7A1000 bridge chips are adopted for providing addressing interfaces with different data transmission rates for the data processing process; carrying out function adaptation on the addressing interface to form a function interface; and carrying out terminal adaptation of the physical interface on the functional interface to form a physical port of the multifunctional display and control terminal. The addressing interface, the functional interface and the physical interface in the data transmission process are formed, the functional link for data transmission can be flexibly constructed according to the difference of functional requirements, the design complexity of the functional link for link aggregation and data aggregation is simplified, and the efficient data exchange between the terminal display control interface and the processor is formed by fully utilizing the existing mature functional processing circuit and the data addressing bus. Meanwhile, the adaptation flexibility of the physical interface is utilized to meet the assembly requirement of the display and control terminal and the modularization requirement of a software interface and a hardware interface.
Description
Technical Field
The invention relates to the technical field of computer terminals, in particular to a multifunctional display and control terminal and a construction method.
Background
At present, most of control systems or information systems in industrial fields and vehicle-mounted fields need to use display and control products for realizing information interaction between operators and system equipment, realizing acquisition of system information and control of the operators on the systems, and realizing various control functions of the systems. The display and control product comprises the collection, display and storage of various data information; issuing a control instruction, and setting control parameters; sending external information, etc.
Due to the fact that the Loongson 3A3000 chip has good universality, the complexity of terminal design can be simplified by forming the multifunctional display control terminal through the Loongson 3A3000 chip, and the hardware adaptation reliability and the application scene universality are guaranteed.
Disclosure of Invention
In view of the above problems, embodiments of the present invention provide a multifunctional display and control terminal and a construction method thereof, which solve the technical problems of poor universality and narrow application range of the existing terminal.
The method for constructing the multifunctional display and control terminal comprises the following steps:
a Loongson 3A3000 processor is adopted for data processing, and Loongson 7A1000 bridge chips are adopted for providing addressing interfaces with different data transmission rates for the data processing process;
carrying out function adaptation on the addressing interface to form a function interface;
and carrying out terminal adaptation of the physical interface on the functional interface to form a physical port of the multifunctional display and control terminal.
In an embodiment of the present invention, the performing function adaptation on the addressing interface to form a functional interface includes:
the CAN bus function interface is formed by connecting an Ethernet transceiver with a CAN controller through a GMAC (gigabit network media access control) addressing interface of a Loongson 7A1000 bridge chip;
PCIE (high speed serial computer expansion bus) addressing interface through Loongson 7A1000 bridge chip is formed with Ethernet controller as gigabit Ethernet functional interface
A serial port functional interface is formed by utilizing a UART asynchronous serial transceiving controller through a full-function UART addressing interface of a Loongson 7A1000 bridge chip; (ii) a
A serial DVO addressing interface of the Loongson 7A1000 bridge chip forms a serial display function interface by utilizing an LVDS conversion circuit, and forms an HDMI display function interface by utilizing an HDMI conversion circuit;
and forming a touch signal function interface by using an ADC control chip through a universal serial bus address interface of the Loongson 7A1000 bridge chip.
In an embodiment of the present invention, the adapting the terminal of the physical interface to the functional interface to form the physical port of the multifunctional display and control terminal includes:
forming an aviation socket plate assembly to be matched and hermetically connected with the multifunctional display and control terminal shell;
an aerial physical port of a corresponding physical interface is deployed on the aerial socket board assembly;
and the corresponding functional interface is in adaptive connection with the aerial physical port.
In an embodiment of the present invention, the adapting the terminal of the physical interface to the functional interface to form the physical port of the multifunctional display and control terminal includes:
after being integrated, the display screen and the touch screen are respectively embedded into the multifunctional display and control terminal shell to be matched and hermetically connected with the key board;
step 350: the key board, the display screen and the touch screen are electrically connected with the corresponding functional interfaces;
step 360: a detachable structure is formed between the key board and the integrated frame.
The multifunctional display and control terminal provided by the embodiment of the invention is internally provided with a Loongson 3A3000 processor and a Loongson 7A1000 bridge chip which is connected with the Loongson 3A3000 processor through a high-speed data link, and comprises a rear aviation socket plate assembly which is used for forming a physical port which is matched to form a physical interface on the multifunctional display and control terminal; the lower part of the aviation socket plate component is provided with a maintenance window for carrying out line sequence adjustment on the built-in plate-to-plate connector when the aviation socket plate component is opened; the touch screen comprises a front display touch screen and a detachable key board.
In one embodiment of the invention, the CAN physical interface is included, and the CAN physical interface is formed by sequentially connecting an Ethernet transceiver with a CAN controller through a GMAC addressing interface of a Loongson 7A1000 bridge chip.
In an embodiment of the present invention, the ethernet physical interface is included, and the ethernet physical interface is formed by connecting a PCIE addressing interface of a Loongson 7a1000 bridge chip to a gigabit network card control chip.
In one embodiment of the invention, the device comprises a serial port physical interface which is formed by connecting a full-function UART addressing interface of a Loongson 7A1000 bridge chip with a UART asynchronous serial transceiving controller.
In an embodiment of the invention, the display physical interface is formed by connecting a serial DVO addressing interface of a Loongson 7A1000 bridge chip with an LVDS conversion circuit or an HDMI conversion circuit.
In one embodiment of the invention, the touch control device comprises a touch control physical interface which is formed by connecting a universal serial bus address interface of a Loongson 7A1000 bridge chip with an ADC control chip.
The multifunctional display and control terminal and the construction method thereof adopt a Loongson 3A3000 processor, are matched with a 4GB memory, are matched with a large-capacity solid-state storage disc, and mainly realize the functions of display, user input, communication, data storage and the like. The whole machine adopts a closed design, all interfaces adopt aerial plug, and are matched with a domestic industrial-grade resistive touch screen, and the liquid crystal screen adopts an isolation buffer vibration damping design, so that a high vibration environment is ensured, and the liquid crystal display screen is suitable for the fields with higher environmental requirements such as industrial fields, vehicle-mounted fields and the like.
Drawings
Fig. 1 is a schematic flow chart illustrating a method for constructing a multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a bridge connection of the multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating a basic architecture of a multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a CAN interface connection of the multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating an ethernet interface connection of the multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 6 is a schematic diagram illustrating a connection of a serial port of a multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 7 is a schematic diagram illustrating a connection of a display interface of the multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 8 is a schematic diagram illustrating a connection of a touch interface of a multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 9 is a schematic diagram of an embedded keyboard of the multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 10 is a schematic diagram of an embedded keyboard of the multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 11 is a front view of the multifunctional display and control terminal according to an embodiment of the present invention.
Fig. 12 is a rear view of the multifunctional display and control terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention is further described below with reference to the accompanying drawings and the detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method for constructing a multifunctional display and control terminal according to an embodiment of the present invention is shown in fig. 1. In fig. 1, the present embodiment includes:
step 100: a Loongson 3A3000 processor is adopted for data processing, and a Loongson 7A1000 bridge chip is adopted for providing addressing interfaces with different data transmission rates for the data processing process.
Loongson 3A3000 processor has general purpose data processing capabilities including, but not limited to, fixed point operations, floating point operations, and the like. The Loongson 7A1000 bridge chip establishes a data addressing bus and forms an addressable interface connected with the data addressing bus according to the data transmission rate, the addressing interface provides a data interface standard for determining the data transmission rate in an address range, and the data addressing bus establishes a fused data link for data transmission between different input and output data and the processor.
Step 200: and carrying out function adaptation on the addressing interface to form a functional interface.
The method comprises the steps of selecting an addressing interface according to speed requirements, configuring a corresponding function processing circuit according to function requirements, wherein the function processing circuit comprises but is not limited to a protocol encapsulation decapsulation circuit, a signal conditioning circuit, a signal power amplifier circuit, a data baseband processing circuit and the like, and the function processing circuit can adopt an integrated circuit chip or a chip combination with a determined algorithm function.
Step 300: and carrying out terminal adaptation of the physical interface on the functional interface to form a physical port of the multifunctional display and control terminal.
The physical interface specification utilizes the functional interface to form the standard of signal, voltage, line sequence and physical configuration of data transmission, and the terminal adaptation includes but is not limited to forming a specific physical port for determining the functional interface, and the physical port is adapted to the application requirement and the assembly structure of the multifunctional display and control terminal.
The multifunctional display and control terminal construction method of the embodiment of the invention utilizes the Loongson series processor and the bridge chip to form the addressing interface, the functional interface and the physical interface in the data transmission process, so that the multifunctional display and control terminal can flexibly construct the functional link of data transmission according to the difference of functional requirements, the design complexity of the functional link for link aggregation and data aggregation is simplified, and the existing mature functional processing circuit is fully utilized to cooperate with the data addressing bus to form efficient data exchange between the terminal display and control interface and the processor. Meanwhile, the adaptation flexibility of the physical interface is utilized to meet the assembly requirement of the display and control terminal and the modularization requirement of a software interface and a hardware interface, and the flexibility of the display and control data access and display and control configuration of the terminal is realized.
The bridge piece connection of the multifunctional display and control terminal of one embodiment of the invention is shown in figure 2. Referring to fig. 1 and 2, in an embodiment of the present invention, step 200 includes:
step 210: the CAN bus function interface is formed by the CAN controller through a GMAC (gigabit network media access control) addressing interface of a Loongson 7A1000 bridge chip and connecting the CAN controller by an Ethernet transceiver.
The Ethernet protocol high-speed characteristic of a GMAC addressing interface is fully utilized, and high-bandwidth low-delay guarantee is provided for a CAN bus functional interface.
Step 220: the PCIE (high speed serial computer expansion bus) addressing interface through the loongson 7a1000 bridge is formed with ethernet controllers as a gigabit ethernet functional interface.
The high bandwidth of the PCIE addressing interface is fully utilized to form the parallel transmission efficiency of multiple gigabit ethernet functional interfaces.
Step 230: the serial interface function interface is formed by utilizing a UART asynchronous serial transceiving controller through a full-function UART addressing interface of a Loongson 7A1000 bridge chip.
The low-speed flexibility of the full-function UART addressing interface is fully utilized to connect the diversified serial port function interfaces.
Step 240: a serial DVO addressing interface of the Loongson 7A1000 bridge chip forms a serial display function interface by utilizing an LVDS conversion circuit, and forms an HDMI display function interface by utilizing an HDMI conversion circuit.
Different signal adaptation links for video signal output are established by fully utilizing a serial DVO addressing interface provided by the bridge chip, and then a video acquisition function interface matched with a video acquisition circuit is formed by utilizing the signal adaptation links, so that the stability and the flexibility of video data are improved.
Step 250: and forming a touch signal function interface by using an ADC control chip through a universal serial bus address interface of the Loongson 7A1000 bridge chip.
The multiplexing flexibility of the universal serial bus address interface is fully utilized to form the stability and flexibility of signal acquisition.
The method for constructing the multifunctional display and control terminal utilizes the address interface with the difference of the transmission speed difference of the Loongson 7A1000 bridge chip to combine with a special function circuit to form a specific function interface, and provides a data transmission link with a basic data processing function for a processor. According to the system requirements, independent upgrading or replacement of the functional circuit can realize improvement of data processing capacity on the basis of transmission link stability.
The basic architecture of the multifunctional display and control terminal according to an embodiment of the present invention is shown in fig. 3. Referring to fig. 1 and 3, in an embodiment of the present invention, step 300 includes:
step 310: and forming adaptive sealing connection between the aviation socket plate assembly and the multifunctional display control terminal shell.
And the aviation socket board assembly is used for carrying out terminal adaptation on the physical interface of the specific function interface. The port layout on the aviation socket plate component is set according to the terminal function requirements, and the physical interface layout can be changed by replacing the aviation socket plate component. The sealing structure and the adaptation structure that aviation socket board subassembly included guarantee with the adaptation demand of multi-functional display and control terminal housing.
Step 320: and the aviation socket board component is provided with aviation plug physical ports of corresponding physical interfaces.
The versatility, stability and security of the connection is formed using the aerial physical ports.
Step 330: and the corresponding functional interface is in adaptive connection with the aerial physical port.
The board-to-board connector adopted for adaptive connection can ensure that the line sequence is maintained adjustable, and the plugging is stable and reliable.
Step 340: after being integrated, the display screen and the touch screen are respectively embedded into the multifunctional display and control terminal shell to be matched and hermetically connected with the key board.
The integration ensures the combination tolerance of the display screen, the touch screen and the whole outline of the key board and the multifunctional display and control terminal shell.
Step 350: the key board, the display screen and the touch screen are electrically connected with the corresponding functional interfaces.
Step 360: a detachable structure is formed between the key board and the integrated frame.
The detachable structure ensures the configuration flexibility of the key board aiming at the display control function.
The construction method of the multifunctional display control terminal provided by the embodiment of the invention is characterized in that the functional interface and the physical interface form physical characteristic adaptation on the shell. Meanwhile, the flexibility of the interactive environment is ensured.
Fig. 11 and 12 show a front view and a rear view of the multifunctional display and control terminal according to an embodiment of the present invention. As shown in fig. 3, 11 and 12, the multifunctional display and control terminal includes a rear aviation socket board assembly 10 for forming a physical port adapted to form a physical interface at the multifunctional display and control terminal; the lower part of the aviation socket plate assembly 10 is provided with a maintenance window 11 for carrying out line sequence adjustment on an internal plate-to-plate connector when the aviation socket plate assembly is opened; and further comprises a front touch-sensitive integrated screen 20 and a detachable keypad 30.
Fig. 9 and 10 show an embedded keyboard of a multifunctional display and control terminal according to an embodiment of the present invention. As shown in fig. 9 and 10, the removable keypad 30 includes at least two alternative embedded keyboards for providing keyboard input for different display interfaces.
The connections of the CAN interface, the ethernet interface, the serial interface, the display interface and the touch interface of the multifunctional display and control terminal according to an embodiment of the present invention are shown in fig. 4 to 8, respectively. Referring to fig. 2 and fig. 3, the multifunctional display and control terminal is internally provided with a Loongson 3a3000 processor and a Loongson 7a1000 bridge chip connected with the Loongson 3a3000 processor through a high-speed data link.
Referring to fig. 2 and 4, in one embodiment of the invention, the CAN physical interface is formed by connecting the ethernet transceiver to the CAN controller sequentially via the GMAC addressing interface of the loongson 7a1000 bridge.
In an embodiment of the invention, the Ethernet transceiver adopts ZX5201 series chip, and the CAN controller adopts MJU 4 series MCU. The CAN physical interface is formed by the MS39003ZZ series isolation drivers. Leading to the interface board docking connector.
Referring to fig. 2 and 5, in an embodiment of the present invention, an ethernet physical interface is formed by connecting a PCIE addressing interface of a loongson 7a1000 bridge chip to a gigabit network card control chip.
In an embodiment of the invention, the 4-channel gigabit network card control chip WL1860 is compatible with the INTELI350 network card PIN-TO-PIN, and is suitable for high-performance network processing application. The 4-path kilomega network interface is led out to the bottom plate connector, and meanwhile, a LINK indicator light and an ACT indicator light are designed on the bottom plate connector, so that the state checking is convenient.
Referring to fig. 2 and fig. 6, in an embodiment of the present invention, the serial port physical interface is formed by connecting a full-function UART addressing interface of a Loongson 7a1000 bridge chip to a UART asynchronous serial transceiver controller.
In an embodiment of the invention, a Beijing-grid-excitation-micro magnetic isolation chip is selected as a UART asynchronous serial transceiver controller, an RS232 signal is defined as a 3-wire system, a Beijing-grid-excitation-micro RS422 magnetic isolation chip is selected for 1 path, a Beijing-grid-excitation-micro RS232 magnetic isolation chip is selected for 1 path, and a serial port is led out to an onboard connector.
Referring to fig. 2 and 7, in an embodiment of the present invention, the display physical interface is formed by connecting the serial DVO addressing interface of the Loongson 7a1000 bridge chip to the LVDS conversion circuit or the HDMI conversion circuit.
In an embodiment of the invention, the 7a1000 bridge chip integrates the GPU and the display controller to form a dual DVO addressing interface output, and A1-way LVDS interface and A1-way HDMI interface are formed and output to the liquid crystal screen through the EMC device. And a macro-crystal video acquisition chip is selected for video acquisition, 2-channel analog video input is supported, 2-channel video interface input is selected, and the video is displayed on the liquid crystal screen through the HDMI selection switch and the liquid crystal screen driving chip.
Referring to fig. 2 and 8, in an embodiment of the present invention, the touch physical interface is formed by connecting the universal serial bus address interface of the Loongson 7a1000 bridge chip to the ADC control chip.
In an embodiment of the invention, the industrial-grade 4-wire resistive touch screen is selected as the touch screen, so that the touch screen has better environmental adaptability and meets the requirements of vehicle-mounted environments. And the ADC control chip acquires the touch signal and performs conversion processing. A touch control chip of the touch screen control unit selects CH558 standard 4 lines to collect signals, and the resolution of an internal AD module is 12 bits. And D, converting the touch screen sensing signal into a standard digital signal after AD sampling, and connecting the standard digital signal with a USB bus.
The multifunctional display control terminal processor module has the advantages of standardization, serialization and compatibility, realizes the functions of information display such as characters and graphics, user input, communication, data storage and the like through the peripheral circuit expansion function, and has the functions of 2-path CAN bus interface, 2-path Ethernet port, 2-path serial port, 2-path video input and the like. Based on the design, the multifunctional display and control terminal capable of meeting the wide temperature range working range of-40-65 ℃ is realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for constructing a multifunctional display and control terminal is characterized by comprising the following steps:
a Loongson 3A3000 processor is adopted for data processing, and Loongson 7A1000 bridge chips are adopted for providing addressing interfaces with different data transmission rates for the data processing process;
carrying out function adaptation on the addressing interface to form a function interface;
and carrying out terminal adaptation of the physical interface on the functional interface to form a physical port of the multifunctional display and control terminal.
2. The method for constructing a multifunctional display and control terminal according to claim 1, wherein the performing the function adaptation on the addressing interface to form the function interface comprises:
the CAN bus function interface is formed by connecting an Ethernet transceiver with a CAN controller through a GMAC (gigabit network media access control) addressing interface of a Loongson 7A1000 bridge chip;
PCIE (high speed serial computer expansion bus) addressing interface through Loongson 7A1000 bridge chip is formed with Ethernet controller as gigabit Ethernet functional interface
A serial port functional interface is formed by utilizing a UART asynchronous serial transceiving controller through a full-function UART addressing interface of a Loongson 7A1000 bridge chip; (ii) a
A serial DVO addressing interface of the Loongson 7A1000 bridge chip forms a serial display function interface by utilizing an LVDS conversion circuit, and forms an HDMI display function interface by utilizing an HDMI conversion circuit;
and forming a touch signal function interface by using an ADC control chip through a universal serial bus address interface of the Loongson 7A1000 bridge chip.
3. The method for constructing a multifunctional display and control terminal according to claim 2, wherein the terminal adapting of the physical interface to the functional interface to form the physical port of the multifunctional display and control terminal comprises:
forming an aviation socket plate assembly to be matched and hermetically connected with the multifunctional display and control terminal shell;
an aerial physical port of a corresponding physical interface is deployed on the aerial socket board assembly;
and the corresponding functional interface is in adaptive connection with the aerial physical port.
4. The method for constructing a multifunctional display and control terminal according to claim 2, wherein the terminal adapting of the physical interface to the functional interface to form the physical port of the multifunctional display and control terminal comprises:
after being integrated, the display screen and the touch screen are respectively embedded into the multifunctional display and control terminal shell to be matched and hermetically connected with the key board;
step 350: the key board, the display screen and the touch screen are electrically connected with the corresponding functional interfaces;
step 360: a detachable structure is formed between the key board and the integrated frame.
5. A multifunctional display and control terminal is characterized in that a Loongson 3A3000 processor and a Loongson 7A1000 bridge chip connected with the Loongson 3A3000 processor through a high-speed data link are arranged in the multifunctional display and control terminal, and the multifunctional display and control terminal comprises a rear aviation socket board assembly and a physical port, wherein the aviation socket board assembly is used for forming a physical interface in a matched manner on the multifunctional display and control terminal; the lower part of the aviation socket plate component is provided with a maintenance window for carrying out line sequence adjustment on the built-in plate-to-plate connector when the aviation socket plate component is opened; the touch screen comprises a front display touch screen and a detachable key board.
6. The multi-function display and control terminal of claim 5, comprising a CAN physical interface formed by sequentially connecting an Ethernet transceiver to a CAN controller via a GMAC addressing interface of a Loongson 7A1000 bridge.
7. The multi-functional display and control terminal of claim 5, comprising an Ethernet physical interface formed by connecting a PCIE addressing interface of a Loongson 7A1000 bridge chip with a gigabit Ethernet card control chip.
8. The multifunctional display and control terminal as claimed in claim 5, comprising a serial physical interface formed by connecting a full-function UART addressing interface of a Loongson 7A1000 bridge chip with a UART asynchronous serial transceiving controller.
9. The multi-functional display and control terminal of claim 5, comprising a display physical interface formed by connecting an LVDS conversion circuit or an HDMI conversion circuit through a serial DVO addressing interface of the Loongson 7A1000 bridge chip.
10. The multifunctional display and control terminal as claimed in claim 5, comprising a touch physical interface formed by connecting an ADC control chip through a universal serial bus address interface of a Loongson 7A1000 bridge chip.
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| CN202602660U (en) * | 2012-05-10 | 2012-12-12 | 合肥海尔信息产品有限公司 | Ethernet interface circuit |
| CN212781882U (en) * | 2020-08-25 | 2021-03-23 | 济南泰格电子技术有限公司 | Touch display terminal |
| CN215219691U (en) * | 2021-04-08 | 2021-12-17 | 成都爱斯顿科技有限公司 | COME module based on Loongson 3A4000 processor |
| CN114385531A (en) * | 2021-12-11 | 2022-04-22 | 北京经纬天启技术有限公司 | VPX single-board computer based on Loongson processor |
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