CN111221686A - Method for enabling linux equipment to support serial port command line - Google Patents
Method for enabling linux equipment to support serial port command line Download PDFInfo
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- CN111221686A CN111221686A CN201811423536.9A CN201811423536A CN111221686A CN 111221686 A CN111221686 A CN 111221686A CN 201811423536 A CN201811423536 A CN 201811423536A CN 111221686 A CN111221686 A CN 111221686A
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2273—Test methods
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
A method for a linux device to support a serial command line, comprising: s1, connecting the testing device and a connecting port of the linux equipment to be tested; s2, adding a terminal starting instruction in the operating system of the linux device to be tested to redirect the connection port to be a serial command line port. By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex random interaction between the PC or the automatic test tool and the linux embedded equipment through the serial port command line can be realized, and the problem that the factory debugging and the maintenance of a plurality of linux embedded equipment do not have debugging and testing serial ports is solved.
Description
Technical Field
The invention relates to the field of debugging of linux equipment, in particular to a method for enabling the linux equipment to support a serial port command line.
Background
Most of the existing embedded products adopt an Arm or an X86 platform as a main control module, and use a linux system as an operating system of the whole embedded product. When products are produced and tested, the automatic test equipment is required to be used for carrying out interactive communication with a terminal command line of the equipment to be tested, a plurality of industrial automatic test equipment can only use a serial port to access the equipment to be tested, but a plurality of linux embedded products do not support a serial port debugging interface, and great difficulty is brought to product debugging.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for enabling the linux equipment to support the serial port command line, so that the PC or the automatic test tool and the linux embedded equipment can carry out comprehensive and complex random interaction through the serial port command line, and the problem that the factory debugging and the maintenance of a plurality of linux embedded equipment do not have debugging and testing serial ports is solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for enabling a linux device to support a serial port command line is constructed, and comprises the following steps:
s1, connecting the testing device and a connecting port of the linux equipment to be tested;
s2, adding a terminal starting instruction in the operating system of the linux device to be tested to redirect the connection port to be a serial command line port.
In the method for enabling the linux equipment to support the serial port command line, the connection port of the linux equipment to be tested is a USB port.
In the method for enabling the linux device to support the serial port command line, the step S1 further includes:
s11, setting a USB-to-232 converter in the linux device to be tested;
s12, adding a USB conversion driver in the operating system of the linux device to be tested;
and S13, connecting the test device and the USB port through the USB-to-232 converter by using a cable.
In the method for enabling a linux device to support a serial command line according to the present invention, an operating system of the linux device to be tested is an automatic add driver, and the step S2 further includes:
s21, adding a USB opening terminal instruction in the starting process of the operating system of the linux device to be tested to redirect the USB port as a serial command line port.
In the method for enabling the linux device to support the serial port command line, the USB start terminal instruction is/sbin/atty ttyUSB 0115200 &.
In the method for enabling a linux device to support a serial command line according to the present invention, an operating system of the linux device to be tested is a manual add driver, and the step S2 further includes:
S2A, adding an automatic driving instruction in an automatic rule file of an operating system of the linux device to be tested;
S2B, adding a USB opening terminal instruction in the operating system of the linux device to be tested to redirect the USB port to be a serial command line port.
In the method for enabling the linux equipment to support the serial port command line, the automatic rule file is an/etc/udev/rule.d rule file; the automatic driving instruction is insmodxx.ko, and the USB open terminal instruction is/sbin/atty ttyUSB 0115200 &.
In the method for enabling the linux equipment to support the serial port command line, the connection port of the linux equipment to be tested is a common serial port.
In the method for enabling the linux device to support the serial port command line, the step S1 further includes: and connecting the testing device with the common serial port by adopting a cable.
In the method for enabling the linux device to support the serial port command line according to the present invention, in the step S2, the serial port opening terminal instruction is/sbin/atty tty 0115200 &.
The invention also relates to a computer readable storage medium, which is executable by a processor to perform any of the methods of the preceding claims for enabling a linux device to support a serial command line.
By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex random interaction between the PC or the automatic test tool and the linux embedded equipment through the serial port command line can be realized, and the problem that the factory debugging and the maintenance of a plurality of linux embedded equipment do not have debugging and testing serial ports is solved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a flowchart of a first embodiment of the method of the present invention for a linux device to support a serial command line;
FIG. 2 is a flowchart of a second embodiment of the method of the present invention for a linux device to support a serial command line;
FIG. 3 is a hardware schematic diagram of the method shown in FIG. 2 for enabling a linux device to support a serial command line;
FIG. 4 is a flowchart of a third embodiment of the method of the present invention for a linux device to support a serial command line;
FIG. 5 is a flowchart of a fourth embodiment of the method of the present invention for a linux device to support a serial command line;
FIG. 6 is a hardware schematic diagram of the method shown in FIG. 5 for enabling a linux device to support a serial command line;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and 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.
The invention relates to a method for enabling linux equipment to support a serial port command line, which comprises the following steps: s1, connecting the testing device and a connecting port of the linux equipment to be tested; s2, adding a terminal starting instruction in the operating system of the linux device to be tested to redirect the connection port to be a serial command line port. By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex random interaction between the PC or the automatic test tool and the linux embedded equipment through the serial port command line can be realized, and the problem that the factory debugging and the maintenance of a plurality of linux embedded equipment do not have debugging and testing serial ports is solved.
FIG. 1 is a flowchart of a first embodiment of the method of the present invention for a linux device to support a serial command line. As shown in FIG. 1, in step S1, the test apparatus and the connection port of the linux device to be tested are connected. In a preferred embodiment of the present invention, the testing device may be a PC or an automated testing tool. The linux device to be tested may be any embedded product known in the art that utilizes the linux system as an operating system for the entire embedded product. The linux device to be tested can comprise a USB interface or a common serial port. When the linux device to be tested comprises a USB interface, a USB-to-232 converter can be arranged in the linux device to be tested; then adding a USB conversion driving program in an operating system of the linux equipment to be tested; and connecting the testing device and the USB port by a cable through the USB-to-232 converter. When the linux device to be tested comprises a common serial port, a cable can be adopted to connect the testing device and the common serial port.
In step S2, an open terminal instruction is added to the operating system of the linux device to be tested to redirect the connection port as a serial command line port. When the connection port is a USB port and the operating system of the linux device to be tested is an automatic add driver, the step S2 further includes: and adding a USB starting terminal instruction in the starting process of the operating system of the linux equipment to be tested to redirect the USB port as a serial command line port. When the connection port is a USB port and the operating system of the linux device to be tested is a non-automatic add driver, the step S2 further includes: adding an automatic driving instruction in an automatic rule file of an operating system of the linux equipment to be tested; and adding a USB starting terminal instruction in an operating system of the linux equipment to be tested to redirect the USB port as a serial command line port. When the connection port is a normal serial port, the step S2 is to add a serial port opening terminal instruction directly to the operating system of the linux device to be tested to redirect the normal port as a serial command line port.
In the invention, according to a scheme which can be selected according to the type of the connection port of the linux device to be tested, after the connection and the configuration are carried out, a kernel or a file system mirror image is made again, and the PC or the automatic test equipment can directly access the operating system command line of the linux device to be tested through the connection port, so that instructions such as ls, top, cd, ifconfig … … and the like can be used at will. The method can directly interact with the command line of the operating system of the linux device to be tested or directly access and call a background program to realize the function of the business logic part. Not only does the communication of the defined serial port protocol finished as a common serial port, but also has the advantages of powerful function and convenience which are incomparable with common serial ports.
By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex random interaction between the PC or the automatic test tool and the linux embedded equipment through the serial port command line can be realized, and the problem that the factory debugging and the maintenance of a plurality of linux embedded equipment do not have debugging and testing serial ports is solved.
FIG. 2 is a flowchart of a second embodiment of the method of the present invention for enabling a linux device to support a serial command line. FIG. 3 is a hardware schematic diagram of the method for supporting a serial command line by the linux device shown in FIG. 2. The method for enabling the linux device to support the serial command line according to the present invention is described below with reference to fig. 2 to 3.
In the embodiment shown in fig. 2-3, the testing device may be a PC or an automated test tool 200. The linux device under test 100 may be any embedded product known in the art that utilizes the linux system as an operating system for the entire embedded product. In the present embodiment, the linux device under test 100 comprises a USB interface 110.
As shown in fig. 2-3, in step S1, a USB to 232 converter 120 is provided in the linux device under test 100. For example, a mainstream chip converter driven by pl2303 or Ftdi manufacturers can be used. In step S2, a USB conversion driver is added to the operating system of the linux device to be tested 100. In step S3, the test device and the USB port are connected via the USB to 232 converter using cable 300.
In the embodiment shown in FIGS. 2-3, the operating system of the linux device 100 to be tested is an automatic add driver, so in step S4, a USB open terminal instruction/sbin/agenty ttyUSB 0115200 & is added during the startup process of the operating system of the linux device 100 to be tested to redirect the USB port as a serial command line port.
In the invention, according to a scheme which can be selected according to the type of the connection port of the linux device to be tested, after the connection and the configuration are carried out, a kernel or a file system mirror image is made again, and the PC or the automatic test equipment can directly access the operating system command line of the linux device to be tested through the connection port, so that instructions such as ls, top, cd, ifconfig … … and the like can be used at will. The method can directly interact with the command line of the operating system of the linux device to be tested or directly access and call a background program to realize the function of the business logic part. Not only does the communication of the defined serial port protocol finished as a common serial port, but also has the advantages of powerful function and convenience which are incomparable with common serial ports.
By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex random interaction between the PC or the automatic test tool and the linux embedded equipment through the serial port command line can be realized, and the problem that the factory debugging and the maintenance of a plurality of linux embedded equipment do not have debugging and testing serial ports is solved.
FIG. 4 is a flowchart of a third embodiment of the method of the present invention for a linux device to support a serial command line. The method of fig. 4 may also employ the hardware schematic shown in fig. 3. In the embodiment shown in fig. 3-4, the testing device may be a PC or an automated test tool 200. The linux device under test 100 may be any embedded product known in the art that utilizes the linux system as an operating system for the entire embedded product. In the present embodiment, the linux device under test 100 comprises a USB interface 110.
As shown in fig. 3-4, in step S1, a USB to 232 converter 120 is provided in the linux device under test 100. For example, a mainstream chip converter driven by pl2303 or Ftdi manufacturers can be used. In step S2, a USB conversion driver is added to the operating system of the linux device to be tested 100. In step S3, the test device and the USB port are connected via the USB to 232 converter using cable 300.
In the embodiment shown in fig. 2 to 4, the operating system of the linux device 100 to be tested is a manual automatic driver, so in step S4, an automatic driver instruction insmodxx. In step S5, a USB open terminal command/sbin/atty ttyUSB 0115200 & is added to the operating system of the linux device to be tested so as to redirect the USB port as a serial command line port.
In the invention, according to a scheme which can be selected according to the type of the connection port of the linux device to be tested, after the connection and the configuration are carried out, a kernel or a file system mirror image is made again, and the PC or the automatic test equipment can directly access the operating system command line of the linux device to be tested through the connection port, so that instructions such as ls, top, cd, ifconfig … … and the like can be used at will. The method can directly interact with the command line of the operating system of the linux device to be tested or directly access and call a background program to realize the function of the business logic part. Not only does the communication of the defined serial port protocol finished as a common serial port, but also has the advantages of powerful function and convenience which are incomparable with common serial ports.
By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex random interaction between the PC or the automatic test tool and the linux embedded equipment through the serial port command line can be realized, and the problem that the factory debugging and the maintenance of a plurality of linux embedded equipment do not have debugging and testing serial ports is solved.
FIG. 5 is a flowchart of a fourth embodiment of the method of the present invention for a linux device to support a serial command line. FIG. 6 is a hardware schematic diagram of the method shown in FIG. 5 for enabling a linux device to support a serial command line. The method for enabling the linux device to support the serial command line according to the present invention is described below with reference to fig. 5 to 6.
In the embodiment shown in fig. 5-6, the testing device may be an automated test tool 200. The linux device under test 100 may be any embedded product known in the art that utilizes the linux system as an operating system for the entire embedded product. In this embodiment, the linux device under test 100 comprises a common serial port 130.
As shown in fig. 5 to 6, in the step S1, a cable 300 is used to connect the automated test tool 200 and the generic serial port 130 of the linux device under test 100. In the step S2, a serial port open terminal instruction/sbin/attty tty 0115200 & is added in the process of starting the operating system of the linux device 100 to be tested so as to redirect the common interface 130 as a serial command line port.
In the invention, according to a scheme which can be selected according to the type of the connection port of the linux device to be tested, after the connection and the configuration are carried out, a kernel or a file system mirror image is made again, and the PC or the automatic test equipment can directly access the operating system command line of the linux device to be tested through the connection port, so that instructions such as ls, top, cd, ifconfig … … and the like can be used at will. The method can directly interact with the command line of the operating system of the linux device to be tested or directly access and call a background program to realize the function of the business logic part. Not only does the communication of the defined serial port protocol finished as a common serial port, but also has the advantages of powerful function and convenience which are incomparable with common serial ports.
By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex random interaction between the PC or the automatic test tool and the linux embedded equipment through the serial port command line can be realized, and the problem that the factory debugging and the maintenance of a plurality of linux embedded equipment do not have debugging and testing serial ports is solved.
Accordingly, the present invention can be realized in hardware, software, or a combination of hardware and software. The present invention can be realized in a centralized fashion in at least one computer system, or in a distributed fashion where different elements are spread across several interconnected computer systems. Any kind of computer system or other apparatus adapted for carrying out the methods of the present invention is suited. A typical combination of hardware and software could be a general purpose computer system with a computer program that, when being loaded and executed, controls the computer system such that it carries out the methods described herein.
The present invention may also be implemented by a computer program product, comprising all the features enabling the implementation of the methods of the invention, when loaded in a computer system. The computer program in this document refers to: any expression, in any programming language, code or notation, of a set of instructions intended to cause a system having an information processing capability to perform a particular function either directly or after either or both of the following: a) conversion to other languages, codes or symbols; b) reproduced in a different format.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (11)
1. A method for enabling a linux device to support a serial command line, comprising:
s1, connecting the testing device and a connecting port of the linux equipment to be tested;
s2, adding a terminal starting instruction in the operating system of the linux device to be tested to redirect the connection port to be a serial command line port.
2. The method for enabling a linux device to support a serial command line according to claim 1, wherein the connection port of the linux device to be tested is a USB port.
3. The method for enabling a linux device to support a serial command line according to claim 2, wherein the step S1 further comprises:
s11, setting a USB-to-232 converter in the linux device to be tested;
s12, adding a USB conversion driver in the operating system of the linux device to be tested;
and S13, connecting the test device and the USB port through the USB-to-232 converter by using a cable.
4. The method for enabling a linux device to support a serial command line according to claim 3, wherein an operating system of the linux device to be tested is an auto-add driver, and the step S2 further comprises:
s21, adding a USB opening terminal instruction in the starting process of the operating system of the linux device to be tested to redirect the USB port as a serial command line port.
5. The method for enabling a linux device to support a serial port command line according to claim 4, wherein the USB open terminal instruction is/sbin/atty ttyUSB 0115200 &.
6. The method for enabling a linux device to support a serial command line according to claim 3, wherein an operating system of the linux device to be tested is a manual add-on driver, and the step S2 further comprises:
S2A, adding an automatic driving instruction in an automatic rule file of an operating system of the linux device to be tested;
S2B, adding a USB opening terminal instruction in the operating system of the linux device to be tested to redirect the USB port to be a serial command line port.
7. The method of claim 6, wherein the automatic rule file is an/etc/udev/rule.d rule file; the automatic driving instruction is insmodxx.ko, and the USB open terminal instruction is/sbin/atty ttyUSB 0115200 &.
8. The method for enabling a linux device to support a serial command line as claimed in claim 1, wherein the connection port of the linux device to be tested is a normal serial port.
9. The method for enabling a linux device to support a serial command line according to claim 8, wherein the step S1 further comprises: and connecting the testing device with the common serial port by adopting a cable.
10. The method for enabling a linux device to support a serial port command line according to claim 8, wherein in the step S2, the serial port opening terminal instruction is/sbin/atty tty 0115200 &.
11. A computer readable storage medium, the computer program being executable by a processor to perform the method of any of claims 1-10 for enabling a linux device to support a serial command line.
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