CN111221686B - 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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- CN111221686B CN111221686B CN201811423536.9A CN201811423536A CN111221686B CN 111221686 B CN111221686 B CN 111221686B CN 201811423536 A CN201811423536 A CN 201811423536A CN 111221686 B CN111221686 B CN 111221686B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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; CALCULATING OR 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
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
A method for enabling a linux device to support serial port command lines, comprising: s1, connecting a testing device and a connecting port of a linux device to be tested; s2, adding a terminal opening instruction in an 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 arbitrary 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 dispatching test and maintenance of a plurality of linux embedded equipment do not have a serial port for dispatching 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 serial port command lines.
Background
Currently, the embedded product mostly adopts an Arm or X86 platform as a main control module, and a linux system is used as an operating system of the whole embedded product. When the product is produced and regulated, the automatic test equipment is required to be used for carrying out interactive communication with the terminal command line of the equipment to be tested, and a plurality of industrial automatic test equipment can only use the serial port to access the equipment to be tested, but a plurality of linux embedded products do not support the serial port debugging interface, so that a great difficulty is brought to the product regulation and measurement.
Disclosure of Invention
The invention aims at solving the technical problems of the prior art, and provides a method for enabling a linux device to support serial port command lines, so that the PC or an automatic test tool and the linux embedded device can perform comprehensive and complex arbitrary interaction through the serial port command lines, and the problem that a plurality of linux embedded devices are subjected to factory dispatching and maintenance and have no serial port dispatching is solved.
The technical scheme adopted for solving the technical problems is as follows: a method for constructing a linux device to support serial port command lines, comprising:
s1, connecting a testing device and a connecting port of a linux device to be tested;
s2, adding a terminal opening instruction in an 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 device to support the serial port command line, the connection port of the linux device to be tested is a USB port.
In the method for enabling the linux device to support serial port command lines of the present invention, the step S1 further includes:
s11, setting a USB-to-232 converter in the linux equipment to be tested;
s12, adding a USB conversion driver in an operating system of the linux device to be tested;
s13, connecting the testing device and the USB port through the USB-to-232 converter by adopting a cable.
In the method for enabling the linux device to support the serial port command line of the present invention, the operating system of the linux device to be tested is an automatic adding 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 to be 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/agetty ttyUSB0115200&.
In the method for enabling the linux device to support the serial port command line of the present invention, the operating system of the linux device to be tested is a manual adding driver, and the step S2 further includes:
S2A, adding an automatic driving instruction into an automatic rule file of an operating system of the linux device to be tested;
S2B, adding a USB opening terminal instruction in an 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 serial port command lines, the automatic rule file is a/etc/udev/rules.d rule file; the automatic driving instruction is insmod xx.ko, and the USB start terminal instruction is/sbin/agetty ttyUSB0115200&.
In the method for enabling the linux device to support the serial port command line, the connecting port of the linux device to be tested is a common serial port.
In the method for enabling the linux device to support serial port command lines of the present invention, 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, in the step S2, the serial port opening terminal instruction is/sbin/agetty tty 0115200&.
The invention also relates to a computer readable storage medium, the computer program being executable by a processor to perform a method of any of the preceding for a linux device to support serial command lines.
By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex arbitrary 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 dispatching test and maintenance of a plurality of linux embedded equipment do not have a serial port for dispatching is solved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a flow chart of a first embodiment of a method of the present invention for a linux device to support serial command lines;
FIG. 2 is a flow chart of a second embodiment of a method of the present invention for a linux device to support serial command lines;
FIG. 3 is a hardware schematic of the method for enabling the linux device to support serial command lines shown in FIG. 2;
FIG. 4 is a flow chart of a third embodiment of a method of the present invention for a linux device to support serial command lines;
FIG. 5 is a flow chart of a fourth embodiment of a method of the present invention for a linux device to support serial port command lines;
FIG. 6 is a hardware schematic of the method for enabling the linux device to support serial command lines shown in FIG. 5;
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention relates to a method for enabling linux equipment to support serial port command lines, which comprises the following steps: s1, connecting a testing device and a connecting port of a linux device to be tested; s2, adding a terminal opening instruction in an 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 arbitrary 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 dispatching test and maintenance of a plurality of linux embedded equipment do not have a serial port for dispatching is solved.
Fig. 1 is a flowchart of a first embodiment of a method for enabling a linux device to support serial command lines of the present invention. As shown in fig. 1, in step S1, a test apparatus and a connection port of a 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 the operating system for the whole embedded product. The linux device to be tested can comprise a USB interface or a common serial port. When the to-be-tested linux device comprises a USB interface, a USB-to-232 converter can be arranged in the to-be-tested linux device; then adding a USB conversion driver in an operating system of the linux device to be tested; and then a cable is adopted to connect the testing device with the USB port through the USB-to-232 converter. When the linux device to be tested comprises a common serial port, a cable can be used to connect the testing device and the common serial port.
In step S2, an open terminal instruction is added in the operating system of the linux device to be tested to redirect the connection port to be 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-on driver, the step S2 further includes: and adding a USB opening terminal instruction in the starting process of the operating system of the linux device to be tested so as to redirect the USB port to be 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-on driver, the step S2 further includes: adding an automatic driving instruction in an automatic rule file of an operating system of the linux device to be tested; and adding a USB opening terminal instruction into an operating system of the linux device to be tested to redirect the USB port to be a serial command line port. And when the connection port is a common serial port, in the step S2, a serial port opening terminal instruction is directly added in the operating system of the linux device to be tested to redirect the common port to be a serial command line port.
According to the method and the device, a corresponding scheme can be selected according to the type of the connection port of the linux device to be tested, after connection and configuration are carried out, kernel or file system images are rebuilt, and a PC or automatic test equipment can directly access the command line of the operating system of the linux device to be tested through the connection port and can randomly use instructions such as ls, top, cd, ifconfig … … and the like. The method can directly interact with the operating system command line of the linux device to be tested or directly access and call a background program to realize the function of the business logic part. Instead of just performing the communication as a serial port protocol of a predetermined type, the common serial port is incomparable with the powerful function and convenience.
By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex arbitrary 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 dispatching test and maintenance of a plurality of linux embedded equipment do not have a serial port for dispatching is solved.
Fig. 2 is a flowchart of a second embodiment of the method of the present invention for a linux device to support serial command lines. Fig. 3 is a hardware schematic of the method for enabling the linux device to support serial command lines shown in fig. 2. The method of the present invention for enabling a linux device to support serial command lines is described below in conjunction with fig. 2-3.
In the embodiment shown in fig. 2-3, the test device may be a PC or an automated test fixture 200. The linux device 100 to be tested may be any embedded product known in the art that utilizes the linux system as the operating system of the entire embedded product. In this embodiment, the linux device to be tested 100 includes 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 to be tested 100. For example, a mainstream chip converter driven by pl2303 or Ftdi vendor may be employed. 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 by the cable 300 through the USB-to-232 converter.
In the embodiment shown in fig. 2-3, the operating system of the linux device to be tested 100 is an automatic add driver, so in step S4, a USB start terminal command/sbin/agetty ttyUSB0115200 is added during the starting process of the operating system of the linux device to be tested 100 & to redirect the USB port to be a serial command line port.
According to the method and the device, a corresponding scheme can be selected according to the type of the connection port of the linux device to be tested, after connection and configuration are carried out, kernel or file system images are rebuilt, and a PC or automatic test equipment can directly access the command line of the operating system of the linux device to be tested through the connection port and can randomly use instructions such as ls, top, cd, ifconfig … … and the like. The method can directly interact with the operating system command line of the linux device to be tested or directly access and call a background program to realize the function of the business logic part. Instead of just performing the communication as a serial port protocol of a predetermined type, the common serial port is incomparable with the powerful function and convenience.
By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex arbitrary 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 dispatching test and maintenance of a plurality of linux embedded equipment do not have a serial port for dispatching is solved.
Fig. 4 is a flowchart of a third embodiment of the method for enabling a linux device to support serial command lines of the present invention. The method of fig. 4 may also employ the hardware schematic shown in fig. 3. In the embodiment of fig. 3-4, the test device may be a PC or an automated test fixture 200. The linux device 100 to be tested may be any embedded product known in the art that utilizes the linux system as the operating system of the entire embedded product. In this embodiment, the linux device to be tested 100 includes a USB interface 110.
As shown in fig. 3 to 4, in step S1, a USB-to-232 converter 120 is provided in the linux device to be tested 100. For example, a mainstream chip converter driven by pl2303 or Ftdi vendor may be employed. 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 by the cable 300 through the USB-to-232 converter.
In the embodiment shown in fig. 2-4, the operating system of the to-be-tested linux device 100 is a manual automatic adding driver, so in step S4, an automatic driving instruction insmod xx.ko is added in an automatic rule file/etc/udev/rule.d rule file of the operating system of the to-be-tested linux device. In step S5, a USB open terminal command is added to the operating system of the linux device to be tested as/sbin/agetty ttyUSB0115200& to redirect the USB port to be a serial command line port.
According to the method and the device, a corresponding scheme can be selected according to the type of the connection port of the linux device to be tested, after connection and configuration are carried out, kernel or file system images are rebuilt, and a PC or automatic test equipment can directly access the command line of the operating system of the linux device to be tested through the connection port and can randomly use instructions such as ls, top, cd, ifconfig … … and the like. The method can directly interact with the operating system command line of the linux device to be tested or directly access and call a background program to realize the function of the business logic part. Instead of just performing the communication as a serial port protocol of a predetermined type, the common serial port is incomparable with the powerful function and convenience.
By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex arbitrary 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 dispatching test and maintenance of a plurality of linux embedded equipment do not have a serial port for dispatching is solved.
Fig. 5 is a flowchart of a fourth embodiment of the method of the present invention for a linux device to support serial command lines. Fig. 6 is a hardware schematic of the method for enabling the linux device to support serial command lines shown in fig. 5. The method of the present invention for enabling a linux device to support serial command lines is described below in conjunction with fig. 5-6.
In the embodiment shown in fig. 5-6, the test device may be an automated test fixture 200. The linux device 100 to be tested may be any embedded product known in the art that utilizes the linux system as the operating system of the entire embedded product. In this embodiment, the linux device to be tested 100 includes 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 fixture 200 and the common serial port 130 of the linux device to be tested 100. In the step S2, a serial port open terminal command/sbin/agetty tty 0115200 is added during the starting process of the operating system of the linux device to be tested 100 to redirect the normal interface 130 to be a serial command line port.
According to the method and the device, a corresponding scheme can be selected according to the type of the connection port of the linux device to be tested, after connection and configuration are carried out, kernel or file system images are rebuilt, and a PC or automatic test equipment can directly access the command line of the operating system of the linux device to be tested through the connection port and can randomly use instructions such as ls, top, cd, ifconfig … … and the like. The method can directly interact with the operating system command line of the linux device to be tested or directly access and call a background program to realize the function of the business logic part. Instead of just performing the communication as a serial port protocol of a predetermined type, the common serial port is incomparable with the powerful function and convenience.
By implementing the method for enabling the linux equipment to support the serial port command line, the comprehensive and complex arbitrary 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 dispatching test and maintenance of a plurality of linux embedded equipment do not have a serial port for dispatching is solved.
Thus, the present invention may be realized in hardware, software, or a combination of hardware and software. The invention may be implemented 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 invention is suited. The combination of hardware and software may be a general-purpose computer system with a computer program installed thereon, which, when executed, controls the computer system such that it carries out the methods of the present invention.
The present invention can also be realized by a computer program product, which comprises all the features enabling the implementation of the methods described herein, and which when installed in a computer system is able to carry out these methods. 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 (5)
1. A method for enabling a linux device to support serial port command lines, comprising:
s1, connecting a testing device and a connecting port of a linux device to be tested;
s2, adding a terminal opening instruction in an operating system of the linux device to be tested to redirect the connection port to be a serial command line port;
automatically adding a drive for the operating system of the linux device to be tested and manually adding a drive for the operating system of the linux device to be tested;
when a driver is automatically added to the operating system of the linux device to be tested, and the connection port of the linux device to be tested is a USB port, the step S2 further includes: s21, adding a USB opening terminal instruction in the starting process of an operating system of the linux device to be tested to redirect the USB port to be a serial command line port, wherein the USB opening terminal instruction is/sbin/agetty ttyUSB0115200&; or (b)
When a driver is manually added to the operating system of the linux device to be tested, and the connection port of the linux device to be tested is a USB port, the step S2 further includes: S2A, adding an automatic driving instruction into an automatic rule file of an operating system of the linux device to be tested; S2B, adding a USB opening terminal instruction in an operating system of the linux device to be tested to redirect the USB port to be a serial command line port, wherein the automatic rule file is a/etc/udev/rule.d rule file; the automatic driving instruction is insmod xx.ko, and the USB start terminal instruction is/sbin/agetty ttyUSB0115200&.
2. The method for enabling a linux device to support serial command lines according to claim 1, wherein the step S1 further comprises:
s11, setting a USB-to-232 converter in the linux equipment to be tested;
s12, adding a USB conversion driver in an operating system of the linux device to be tested;
s13, connecting the testing device and the USB port through the USB-to-232 converter by adopting a cable.
3. The method for enabling a linux device to support serial port command lines according to claim 1, wherein a connection port of the linux device to be tested is a common serial port.
4. The method for enabling a linux device to support serial command lines according to claim 3, wherein said step S1 further comprises: and connecting the testing device with the common serial port by adopting a cable.
5. A computer readable storage medium having stored thereon a computer program executable by a processor to perform the method of enabling a linux device to support serial command lines of any of claims 1-4.
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