CN111830888A

CN111830888A - Portable embedded debugging equipment

Info

Publication number: CN111830888A
Application number: CN202010902345.1A
Authority: CN
Inventors: 董文超; 梁喜东
Original assignee: Shanghai Flexem Technology Co ltd
Current assignee: Shanghai Flexem Technology Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2020-10-27

Abstract

The invention discloses a portable embedded debugging device, which comprises: the core board comprises a chip arranged on the core board, chip pins led out of the core board and a core board power supply pin; the bottom plate is powered by a USB and comprises an output interface, a serial port, a plurality of lead-out pins, a touch screen output terminal, a communication port, an oscilloscope interface and a universal positive-negative interface; the core board is arranged on the left lower side of the bottom board, the output interface is arranged on the right upper side of the bottom board, and the serial port is arranged on the right lower side of the bottom board; the plurality of lead-out pins are divided into three groups, wherein the first group is arranged on the upper side of the bottom plate, the second group is arranged on the lower side of the bottom plate, and the third group is arranged in the middle area of the left side of the bottom plate; touch-sensitive screen output terminal sets up in the left side of output interface, and the communication interface sets up in the below of touch-sensitive screen output terminal, and the oscilloscope interface sets up in the left side of nuclear core plate, and the positive negative interface of general purpose sets up in the right side of nuclear core plate. The invention makes embedded debugging become lightweight and reduces debugging development cost.

Description

Portable embedded debugging equipment

Technical Field

The invention relates to Internet of things software and hardware debugging equipment, in particular to portable embedded debugging equipment.

Background

The embedded debugging method comprises software debugging and hardware debugging, the existing hardware debugging equipment mainly comprises an oscilloscope, a numerical value adjustable power supply, a function signal generator, a mirror image switch, can debugging equipment, usb-to-serial ports, usb-to-485, usb-to-422 and the like, the software debugging mainly refers to computer ide simulation, for example, vs2005 is directly plugged into a network cable to run a wince program in a single step mode, GDB debugging is a linux debugging method, breakpoint single step running debugging information is added during file compiling to observe running states, telnet, ssh, network terminal debugging, serial port terminal debugging and the like.

The embedded software and hardware debugging equipment is widely applied, almost all places related to microelectronics need to use various software and hardware debugging tools, such as single chip microcomputer debugging, hardware circuits, maintenance and protection of an industrial field and the like, communication software needs to be made on the industrial field to intercept communication data between a touch screen and the equipment, an oscilloscope is needed at the moment, the direct voltage and waveform of two lines are firstly seen to judge what the hardware communication is, then the corresponding debugging equipment with the interface is taken out, two lines are led out and hung on the two lines, and the corresponding debugging software is opened to check the communication data.

For example, if the device is 485 communication, an embedded platform to be debugged is 24v power supply, 485 communication equipment is usb to 485, so that tools to be carried by people mainly comprise an oscilloscope, an alternating current 220 to 24v power supply, a universal meter (necessary on a business trip site, and mainly used for checking emergency conditions, such as whether the power supply voltage is normal or not), usb to 485, and various db9 converted wires. Debugging circuit boards or equipment in offices is also indiscernible from various debugging instruments, and to the blind electric signal, software and hardware debugging equipment and instrument are indispensable.

In the current industrial field or non-office environment, various equipment instruments and detection tools are often required to be carried to debug equipment, and some single instruments are large in size and inconvenient to carry, but the equipment is installed at a customer field, and the equipment cannot be moved to an office for debugging. Even if basic field debugging with small volume needs to be provided with a plurality of electronic devices, at least one box is required to be provided with a plurality of commonly used debugging devices, the devices are professional, but the general debugging field requirement is not as high as the device precision, the professional high-standard instruments are only required in research and development design, the instruments are basically used as things on the field, if an airplane goes on a business trip for a long distance, the instruments are also required to be carried, so that a lot of troubles are caused in the face of field debugging of embedded devices, the devices are not only expensive and inconvenient to carry, but also have single functions and are not reused, and therefore, the devices are only the most reliable on the whole.

Although a plurality of portable debugging tools such as a pocket-sized universal meter, a handheld oscilloscope, a virtual oscilloscope, a USB boosting module, a handheld function generator, a 6-in-one serial port module and the like exist on the Internet, the modules exist as single bodies, and many of the modules have functions of multiplexing, namely the universal meter, the oscilloscope and the function signal generator have display liquid crystal modules, power supply circuits and CPU control chips. Therefore, people always carry a lot of physical repeated objects which cannot be separated, and the situation that a user forgets to take a certain instrument or even forgets to take a certain signal wire cannot be realized.

From the perspective of price, most people do embedded system development, engineering debugging, the required measuring instruments and electronic tools do not need high precision so much, and do not use complicated functions so much, just like buying a desktop, ordinary people use the computer to scrap, and do not use the PCI interface on the mainboard, serial ports, parallel ports, optical fiber audio ports and the like, so some irrelevant hardware can be bought, but the market has to do in order to meet the requirements of all people on the computer, and also has requirements on technical parameters, so basically some commonly used electronic debugging tools are expensive, thousands of pieces are generally needed to the oscilloscope, and actually not all people can use high-level functions inside.

Disclosure of Invention

In view of the above problems in the prior art, an object of the present invention is to provide a portable embedded debugging device.

In order to achieve the purpose, the invention adopts the following technical scheme:

a portable embedded commissioning device comprising: the core board comprises a chip arranged on the core board, chip pins led out of the core board and a core board power supply pin; the bottom plate is powered by a USB and comprises an output interface, a serial port, a plurality of lead-out pins, a touch screen output terminal, a communication port, an oscilloscope interface and a universal positive-negative interface; the core board is arranged on the left lower side of the bottom board, the output interface is arranged on the right upper side of the bottom board, and the serial port is arranged on the right lower side of the bottom board; the plurality of lead-out pins are divided into three groups, wherein the first group is arranged on the upper side of the bottom plate, the second group is arranged on the lower side of the bottom plate, and the third group is arranged in the middle area of the left side of the bottom plate; touch-sensitive screen output terminal sets up in the left side of output interface, the communication interface sets up in the below of touch-sensitive screen output terminal, the oscilloscope interface set up in the left side of nuclear core plate, general purpose positive negative interface set up in the right side of nuclear core plate.

Further, the bottom plate is of a double-layer plate structure.

Further, the output terminal of the touch screen is a 2pin terminal, and the output voltage of the touch screen is 12V.

Further, the output interface is a DB9 interface.

Further, the oscilloscope interface is a BNC interface.

Further, the output interface outputs a voltage of 0-24V.

Furthermore, an Ethernet interface is also arranged on the bottom plate.

In the technical scheme, the embedded debugging is lightened, the embedded debugging development cost is reduced, field debugging personnel do not need to carry a large amount of debugging equipment, the size is small, the carrying is convenient, remote debugging monitoring data and debugging information can be realized, programs do not need to be written in severe environments for a long time, and the development cost is greatly saved.

Drawings

Fig. 1 is a schematic diagram of the principle structure and external functional connection port of the product of the present invention.

Detailed Description

The technical scheme of the invention is further explained by combining the drawings and the embodiment.

Referring to fig. 1, the present invention discloses a portable embedded debugging device, which adopts a standard embedded architecture, and the standard embedded architecture mainly includes a core board 1 and a bottom board 2. The main structure of the core board 1 includes a chip 11 disposed on the core board 1, chip pins 12 led out from the core board 1, and a core board power supply pin 13, and the main structure of the base board 2 includes an output interface 21, a serial port 22, a plurality of lead-out pins 23, a touch screen output terminal 24, a communication port 25, an oscilloscope interface 26, a universal positive-negative interface 27, an ethernet interface 28, and the like.

The specific architecture details and the connection relationship of the portable embedded debugging device of the present invention are further described in detail below.

As shown in fig. 1, the core board 1 is disposed on the lower left side of the base board 2, and the chip 11 on the core board 1 is also referred to as a main chip 11. The core board 1 is a single board, and the main chip 11(cpu) is powered by common pins and the core board 1 is led out through pins. In order to facilitate multiplexing of the core portion a plurality of times, the size of the core board 1 is 7 × 7 cm.

As shown in fig. 1, the bottom plate 2 is powered by USB and has a 10 × 6.5cm double-layer structure, the output interface 21 is disposed on the upper right side of the bottom plate 2, and the serial port 22 is disposed on the lower right side of the bottom plate 2. The output interface 21 is 1 DB9, the lead-out serial port 22, and the pins 1 to 9 correspond to: rs458-tx, rs232 rx, rs232 tx, rs422 tx, GND, rs485-rx, rs232 rx, rs232 tx, rs422 rx.

With continued reference to fig. 1, the base plate 2 has a plurality of lead-out pins 23 and is divided into three groups, a first group is disposed on the upper side of the base plate 2, a second group is disposed on the lower side of the base plate 2, and a third group is disposed in the middle area of the left side of the base plate 2. The lead-out pins 23 comprise 11pin green terminals and 20pin pins, wherein the 11pin green terminals are respectively 232ttl tx, rx, gnd and 20pin pins to lead out gpio and iiic interfaces, and the like, so that the dupont lines can be conveniently accessed to perform later debugging work

The communication port 25 is arranged below the touch screen output terminal 24, and tx +, tx-, rx +, rx-, tx, rx of rs232, rx, and rx of com4 for communication between 485 and 422.

The oscilloscope interface 26 is disposed in the upper region of the core board 1, and the oscilloscope interface 26 is a BNC interface. The ethernet interface 28 is disposed below the output interface 21.

The universal positive and negative interface 27 is disposed on the right side of the core board 1. 2 universal positive and negative interfaces 27, the touch screen output terminal 24 is arranged on the left side of the output interface 21, the touch screen output terminal 24 is a 2pin terminal, and the output voltage is 12V. The 2pin green terminal output 12V is supplied to the touch screen of the external debugging equipment for use,

the output interface 21 outputs a voltage of 0-24V. The 4 green terminal output interfaces 21 are respectively voltage output +, voltage output-, current output +, current output-,

the portable embedded debugging equipment is matched with the software of the lower computer for use. And the software aspect of the lower computer adopts an open-source linux system, the boot is transplanted and used for the u-boot, and the kernel is officially provided by linux3.20 and a file system t i. The invention mainly defines a usb slave port drive, the serial port 22 of am335x is used as a corresponding usb slave station, the computer side directly adopts the open-source virtual serial port 22 drive, so that 4 usb-to-serial ports 22 can be made, and then the mode switching of the serial port 22, RS485 and RS422 is performed by matching with the kernel drive, and the pc side is provided with matched software to enable the serial port 22 to switch the working mode by giving an instruction through the usb. The main chip 11CPU also includes a server program for implementing all functions, and the communication mode of this program mainly comes from the usb slave port, and is responsible for communicating with the upper computer software, and the upper computer software and the lower computer software perform human-computer interaction to achieve the purpose of control and display.

The upper computer software is mainly an upper computer interface program written by qt, the usb driver is compiled by ddk provided by Microsoft and is used as an interactive channel between the upper computer and the bottom layer, and the functions are respectively as follows: curve display of oscilloscope, interface of function signal generator, multimeter and voltage and current display.

The core board 1 of the invention is also internally provided with server software, if the device is accessed to the network, the device can be directly connected to the frps software of the server through the frpc software on the lower computer to realize port mapping, so that the device can be directly connected to any Internet to carry out terminal interaction through ssh2 or telnet, and the remote port number can be mapped to other devices in the local area network.

As an example of an applied structure, the present invention may adopt a standard embedded architecture, the main chip 11 may adopt an AM3352 chip 11, which is an A8 architecture of ARM, the main frequency is 600Mhz, the memory may adopt nand and have a capacity of 128Mbyte, and the memory may use ddr3 and have a capacity of 128 Mbyte.

It will be understood by those skilled in the art that the above-mentioned specification, size, main frequency, memory type and capacity, and memory type and capacity of the main chip 11 are only one of many embodiments of the present invention. In other embodiments, the present invention can select different types of parameters of the main chip 11, the memory and the storage, all of which are consistent with the technical idea of the present invention and also fall within the protection scope of the present invention.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. A portable embedded debug device, comprising:

the core board comprises a chip arranged on the core board, chip pins led out of the core board and a core board power supply pin;

the bottom plate is powered by a USB and comprises an output interface, a serial port, a plurality of lead-out pins, a touch screen output terminal, a communication port, an oscilloscope interface and a universal positive-negative interface;

the core board is arranged on the left lower side of the bottom board, the output interface is arranged on the right upper side of the bottom board, and the serial port is arranged on the right lower side of the bottom board;

the plurality of lead-out pins are divided into three groups, wherein the first group is arranged on the upper side of the bottom plate, the second group is arranged on the lower side of the bottom plate, and the third group is arranged in the middle area of the left side of the bottom plate;

touch-sensitive screen output terminal sets up in the left side of output interface, the communication interface sets up in the below of touch-sensitive screen output terminal, the oscilloscope interface set up in the left side of nuclear core plate, general purpose positive negative interface set up in the right side of nuclear core plate.

2. The portable embedded debugging device of claim 1, wherein the backplane is a double-deck structure.

3. The portable embedded debugging device of claim 1, wherein the touch screen output terminal is a 2pin terminal and has an output voltage of 12V.

4. The portable embedded debugging device of claim 1 wherein the output interface is a DB9 interface.

5. The portable embedded debugging device of claim 1 wherein the oscilloscope interface is a BNC interface.

6. The portable embedded debugging device of claim 1, wherein the output interface outputs a voltage of 0-24V.

7. The portable embedded debugging device of claim 1, wherein an ethernet interface is further disposed on the backplane.