CN102421004A - Debugging method and device for TV software system - Google Patents

Abstract

The invention discloses a debugging method of a television software system, which comprises the following steps: detecting whether the storage space of a USB device connected with the television meets the storage requirement of the printing information; and when the storage space of the USB equipment meets the storage requirement of the printing information, starting a debugging process, and outputting the printing information stored in the serial port equipment to the USB equipment. The invention also discloses a debugging device of the television software system. The invention can store the printing information without an external computer, and is convenient for designers to find problems and improve the problems during debugging.

Description

Debugging method and device for TV software system

technical field

The invention belongs to the technical field of televisions, and in particular relates to a method and a device capable of debugging a television software system.

Background technique

Today's TVs generally come with a smart operating system. The more or more powerful the functions of the TV, the more complex the corresponding system. When debugging or maintaining the TV's operating system, it is the best way to analyze the printed information output by the system. At present, analyzing the printing information requires an external computer to obtain the printing information through the serial port. However, in some places, such as the user's home or a high-temperature aging room, the computer is inconvenient to carry and difficult to use, and it is difficult to obtain printed information.

Contents of the invention

The main purpose of the present invention is to provide a debugging method for a TV software system, aiming at solving the above-mentioned technical problem that it is difficult to obtain printing information in the environment.

In order to achieve the purpose of the invention, the present invention provides a debugging method for a television software system, comprising the following steps:

Detect whether the storage space of the USB device connected to the TV meets the printing information storage requirements;

When the storage space of the USB device meets the printing information storage requirements, start the debugging process, and output the printing information stored in the serial port device to the USB device.

Preferably, before starting the debugging process, include:

Judging whether the debugging flag of the TV is enabled, if yes, enters the step of starting the debugging process; if not, enters the normal booting process.

Preferably, said outputting the printing information stored in the serial port device to the USB device includes:

Start the timer preset in the TV;

Create a file in the USB device;

According to the time interval preset by the timer, the printing information is read from the buffer of the serial device and stored in the file.

Preferably, reading the print information from the buffer of the serial port device and saving it in the file includes:

If the space of the USB device is full, the stored data is overwritten with new data, and the space full flag is set at the same time.

Preferably, before judging whether the debugging flag of the TV is enabled, it also includes:

Output the print information to the serial port;

Define the file descriptor, open the serial port file, and assign the return value to the file descriptor;

Read the data in the serial file to the buffer of the serial device.

The present invention also provides a debugging device for a television software system, which at least includes:

The USB device detection module is used to detect whether the storage space of the USB device connected to the TV meets the printing information storage requirements;

The debugging module is used to start the debugging process when the storage space of the USB device meets the printing information storage requirements, and output the printing information stored in the serial port device to the USB device.

Preferably, the debugging module is also used for:

Judging whether the debugging flag of the TV is enabled, when the storage space of the USB device meets the printing information storage requirements, start the debugging process; if not, enter the normal booting process.

Preferably, the above-mentioned debugging module includes:

A timer starting unit, used to start a timer preset in the TV;

A file creation unit for creating files in the USB device;

The print information reading unit is used to read the print information from the buffer of the serial port device according to the time interval preset by the timer, and save it in the file.

Preferably, the print information reading unit is further used for:

If the space is full, the stored data will be overwritten with new data, and the space full flag will be set at the same time.

Preferably, the above-mentioned debugging module also includes a Linux system processing unit, and the Linux system processing unit is specifically used for:

Output the print information to the serial port;

Define the file descriptor, open the serial port file, and assign the return value to the file descriptor;

Read the data in the serial file to the buffer of the serial device.

The invention enables the TV to save the printing information output by the system to the file of the USB device while the TV is running normally, and has the functions of automatically detecting the size of the USB space and automatically updating the file data, so that the TV and other devices can be saved without an external computer Printing information is convenient for designers to find problems and improve them during debugging. It is especially suitable for capturing random problem data in environments such as high temperature and high humidity that are not suitable for people to stay for a long time.

Description of drawings

Fig. 1 is the flow chart of one embodiment of the debugging method of television software system of the present invention;

Fig. 2 is a flow chart of the steps of starting the debugging process for debugging in an embodiment of the debugging method of the television software system of the present invention;

Fig. 3 is a schematic flow chart of another embodiment of the debugging method of the television software system of the present invention;

Fig. 4 is a structural schematic diagram of an embodiment of a debugging device of the television software system of the present invention;

FIG. 5 is a schematic structural diagram of a debugging module in an embodiment of a debugging device for a television software system according to the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Referring to FIG. 1 , FIG. 1 is a flowchart of an embodiment of a debugging method of a television software system according to the present invention. As shown in Figure 1, the process includes the following steps:

Step S10, detecting whether the storage space of the USB device connected to the TV meets the printing information storage requirements;

In the embodiment of the present invention, the debugging process is executed when the TV is turned on, specifically as follows:

First, start the operating system on the TV. After the operating system completes the necessary equipment self-test, initialize the serial device, including setting the serial device communication protocol, communication rate, port and other information, so that the serial port can work. Then initialize the USB device, including initializing the USB communication protocol, planning the buffer zone, installing the USB driver, and obtaining the system resources required by each port, including memory, semaphore, and message queue. After the USB device can work, detect whether there is a USB device plugged into the USB interface, that is, a USB flash memory or a hard disk. If there is no device plugged in, it will start up normally and perform subsequent startup operations; if a device is plugged in, check the size of the device space and the remaining available space; if the space is insufficient, the debugging process will not be performed, and the normal startup operation will also be performed; if If the space meets the requirements, go to step S20.

Step S20, when the storage space of the USB device meets the printing information storage requirements, start the debugging process, and output the printing information stored in the serial port device to the USB device. If the space of the USB device meets the printing information storage requirements, the operating system puts the printing information output by the system into the serial device for output, and then outputs the printing information of the serial device to the USB device. The embodiment of the present invention reads data directly from the serial port without modifying the kernel of the operating system, which not only reduces the workload of the program but also ensures the stability of the system.

The present invention reads the information of the serial device of the system platform and saves it in the specified USB device, so that the programmer can further debug the running state of the system software, which can well avoid the problem of limited storage space of the system platform, and is very good Ensure that the file system fragmentation caused by multiple read and write operations will not destroy the normal operation of the embedded system. The method can be applied not only to televisions, but also to any system platform that has an embedded system and supports serial devices and USB devices.

Referring to Fig. 1, further, in the above embodiment, before step S20 includes:

It is judged whether the debugging flag of the TV is enabled, and if yes, step S20 is performed; if not, the normal boot process is entered. For example, the Debug function flag can be defined in the program to distinguish whether the TV is in the debugging state or the product state. If the Debug function flag is not enabled, the normal boot operation will be performed. If the function flag is enabled, a debugging process will be started. Go to step S20.

Referring to FIG. 2, in another embodiment of the present invention, the above step S20 specifically includes:

Step S21, start the timer preset in the TV set;

Step S22, creating a file in the USB device;

Step S23, according to the preset time interval of the timer, read the print information from the buffer of the serial port device, and save it in a file.

After successfully reading the information of the serial device, start a timer, the interval can be set to 1ms to interrupt once, and then create a file on the USB device to put the print information read from the serial device into the file. In order to continuously read the data of the serial port, the buffer information of the serial device is read every time the timing is up, and it is added to the file data of the USB device.

Further, the above step S23 may include:

Constantly detect the remaining space of the USB device;

If the space of the USB device is full, the stored data is overwritten with new data, and the space full flag is set at the same time.

Read the print information from the buffer of the serial port device and save it in the file while detecting the remaining space of the USB device. If the space is insufficient, the file information will not be added, but the original file data will be overwritten, and the space full flag will be set at the same time. This ensures that the latest data is read. It should be noted that the time set by the timer must be less than the refresh time of the serial port buffer, otherwise part of the data will be missed.

Referring to FIG. 3 , in one embodiment, before judging whether the debugging flag of the TV is enabled, it includes:

Step A, output the print information to the serial port;

Step B, define the file descriptor, open the serial port file, and assign the return value to the file descriptor;

Step C, read the data in the serial port file to the buffer of the serial port device.

This embodiment is aimed at the Linux operating system. If it is a Linux operating system, a function can be used to read and save information. First, a file descriptor is defined in the function, and the serial port file is opened using the open function, and the return value is assigned to the file description character, then call the read function to read the data into the buffer, and finally close the file descriptor.

The debugging method of the TV software system of the present invention is also applicable to the debugging process of the TV under the normal power-on state. For example, if the TV has been powered on normally, as long as the Debug function flag is enabled, after the USB device is detected, the detection space is sufficient. It is also possible to create the above-mentioned debugging process outside the normal process, and save the data of the serial port to the file of the USB device, so that the system can run normally and the printing information can be saved.

The present invention also proposes a debugging device for a television software system, which can realize the above-mentioned method flow. Referring to FIG. 4 , FIG. 4 is a structural diagram of an embodiment of a debugging device for a television software system according to the present invention. As shown in Figure 4, the debugging device of the television software system of the present invention comprises:

The USB device detection module 10 is used to detect whether the storage space of the USB device connected to the TV meets the print information storage requirements; after the TV operating system initializes the serial device and the USB device, the USB device detection module 10 detects whether the USB interface A USB device is plugged in, that is, a USB flash memory or hard disk. If there is no device plugged in, it will start up normally and perform subsequent startup operations; if a device is plugged in, check the size of the device space and the remaining available space; if the space is insufficient, the debugging process will not be performed, and the normal startup operation will also be performed; if If the space meets the requirements, the debugging module 20 is started.

The debugging module 20, when the storage space for the USB device meets the printing information storage requirements, starts the debugging process, and outputs the printing information stored in the serial port device to the USB device. If the space of the USB device meets the printing information storage requirements, the operating system puts the printing information output by the system into the serial device for output, and then the debugging module 20 outputs the printing information of the serial device to the USB device. The embodiment of the present invention reads data directly from the serial port without modifying the kernel of the operating system, which not only reduces the workload of the program but also ensures the stability of the system.

The present invention reads the information of the serial device of the system platform and saves it in the specified USB device, so that the programmer can further debug the running state of the system software, which can well avoid the problem of limited storage space of the system platform, and is very good Ensure that the file system fragmentation caused by multiple read and write operations will not destroy the normal operation of the embedded system. The method can be applied not only to televisions, but also to any system platform that has an embedded system and supports serial devices and USB devices.

Further, the debugging module 20 is also used for:

Judging whether the debugging flag of the TV is enabled, when the storage space of the USB device meets the printing information storage requirements, start the debugging process; if not, enter the normal booting process. For example, the debugging module 20 can define the Debug function identification in the program to distinguish whether the TV is in the debugging state or the product state. During the debugging process, if the Debug function identification is not enabled, the normal boot operation is performed. If the function identification is enabled, Then start a debugging process.

Preferably, referring to FIG. 5, the above-mentioned debugging module 20 includes:

A timer starting unit 21, configured to start a timer preset in the TV set;

A file creation unit 22, configured to create a file in the USB device;

The print information reading unit 23 is configured to read the print information from the buffer of the serial port device according to the time interval preset by the timer, and save it in the file.

After the operating system reads the information of the serial port device successfully, the timer starting unit 21 starts a preset timer, and the interval time of the timer can be set to 1ms to interrupt once, and then the file creation unit 22 creates a file on the USB device to The printing information reading unit 23 puts the printing information read from the serial device into a file. In order to continuously read the data of the serial port, the buffer information of the serial device is read every time the timing is up, and it is added to the file data of the USB device.

The above-mentioned print information reading unit 23 can be further used for:

Constantly detect the remaining space of the USB device;

If the space of the USB device is full, the stored data is overwritten with new data, and the space full flag is set at the same time. The print information reading unit 23 reads the print information from the buffer zone of the serial port device and saves it in the file, and detects the remaining space size of the USB device at the same time. If the space is insufficient, the file information is no longer added, but the original file data is covered. At the same time, set the space full flag, so as to ensure that the latest data is read. It should be noted that the time set by the timer must be less than the refresh time of the serial port buffer, otherwise part of the data will be missed.

Preferably, in an embodiment, the above-mentioned debugging module can also include a Linux system processing unit 24, and the Linux system processing unit 24 is specifically used for:

Output the print information to the serial port;

Define the file descriptor, open the serial port file, and assign the return value to the file descriptor;

Read the data in the serial file to the buffer of the serial device.

This embodiment is aimed at the Linux operating system. If it is a Linux operating system, a function can be used to read and save information. First, a file descriptor is defined in the function, and the serial port file is opened using the open function, and the return value is assigned to the file description character, then call the read function to read the data into the buffer, and finally close the file descriptor.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (10)

1. A method for debugging a TV software system, comprising the following steps: Detect whether the storage space of the USB device connected to the TV meets the printing information storage requirements; When the storage space of the USB device meets the printing information storage requirements, start the debugging process, and output the printing information stored in the serial port device to the USB device. 2. The method according to claim 1, characterized in that, before starting the debugging process, comprising: Judging whether the debugging flag of the TV is enabled, if yes, enters the step of starting the debugging process; if not, enters the normal booting process. 3. The method according to claim 1 or 2, wherein said outputting the print information stored in the serial port device to the USB device comprises: Start the timer preset in the TV; Create a file in the USB device; According to the time interval preset by the timer, the printing information is read from the buffer of the serial device and stored in the file. 4. The method according to claim 3, wherein reading the print information from the buffer of the serial port device and storing it in the file comprises: If the space of the USB device is full, the stored data is overwritten with new data, and the space full flag is set at the same time. 5. The method according to claim 3, further comprising: before judging whether the debugging flag of the TV is enabled: Output the print information to the serial port; Define the file descriptor, open the serial port file, and assign the return value to the file descriptor; Read the data in the serial file to the buffer of the serial device. 6. A debugging device for a TV software system, characterized in that it at least includes: The USB device detection module is used to detect whether the storage space of the USB device connected to the TV meets the printing information storage requirement; The debugging module is used to start the debugging process when the storage space of the USB device meets the printing information storage requirements, and output the printing information stored in the serial port device to the USB device. 7. The debugging device according to claim 6, wherein the debugging module is also used for: Judging whether the debugging flag of the TV is enabled, when the storage space of the USB device meets the printing information storage requirements, start the debugging process; if not, enter the normal booting process. 8. The debugging device according to claim 6 or 7, wherein the debugging module comprises: A timer starting unit, used to start a timer preset in the TV; A file creation unit for creating files in the USB device; The print information reading unit is used to read the print information from the buffer of the serial port device according to the time interval preset by the timer, and save it in the file. 9. The debugging device according to claim 8, wherein the print information reading unit is further used for: If the space of the USB device is full, the stored data is overwritten with new data, and the space full flag is set at the same time. 10. The debugging device according to claim 8, wherein the debugging module also includes a Linux system processing unit, and the Linux system processing unit is specifically used for: Output the print information to the serial port; Define the file descriptor, open the serial port file, and assign the return value to the file descriptor; Read the data in the serial file to the buffer of the serial device.

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