First of all, of course, you need to configure the environment on your computer

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SecureCRT

(This is connected via the serial port, which is equivalent to a serial port debugging tool. We mainly use it to operate the Linux system in the board, and it is convenient to input, etc.)

(This is a screenshot of the interface. Now it is connected, and the system has been burned successfully, so you can use the ls command to view the files)

Click the second icon (quick connect) to create a connection. Please note that your serial port cannot be occupied by other programs. If it is occupied, it will prompt "Access Denied"

Secondly, the configuration is as follows:

My serial port is com1. If you want to use it, you need to check your serial port number in Computer Management and set it up like this.
In this way, the settings are basically done. Just click Quick Connect every time you connect. If you don’t need it, just click the fifth icon to disconnect. To enable it again, click the fifth icon (Reconnect)

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TQBoardDNW

This is to burn the Linux kernel and file system through the serial port and USB cable.
The screenshot is as follows

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Preparation:

The board needs to be connected to the power supply, USB, and serial port. Pay attention to installing the driver.
After opening TQBoardDNW, the preparation work is completed. First press the space bar on the keyboard, then press and hold the power button of the board. Keep pressing it for four or five seconds and release it. The above screenshot will appear, and then you can burn Linux according to the options
as follows: To burn the Linux kernel, first click on the serial port, then find the corresponding serial port and connect

the keyboard to enter 3, then enter 2 as prompted, then click on USB download, select the Linux kernel file prepared in advance, and click to burn. This burning is very fast, and after the burning is completed, it will return to the previous interface
as follows:

To burn the file system, enter the number 6 and then the number 2, then click USB download, select the file, and click OK
as follows:

This time is a little longer, so be patient and
wait until the burning is completed before operating. After burning, it will automatically return to the starting page, as shown below

In this way, the board has a Linux system and file system. I would like to add that since this board is divided into two areas (you can understand it this way), one is the Android area and the other is the Linux area. The Linux burned here is burned to the Linux area, so we also need to set the startup item, that is, which area to start. If it is not set, the Android area may be started. The operation is as follows:
first enter 0 (startup parameter setting) and then enter c (set LCD display selection). Here we choose LCD1024768, so enter 4, then enter q to return to the previous level, as follows:

Enter 4 again (select the Linux file system as the startup file), and then enter s here to save these settings (must enter, otherwise, the settings just now will not work! ! ! ! ) as follows:

In this way, some basic programming of the board has been completed! ! ! ! You can cut off the power and restart your board. If you do not enter the Linux system but enter the Android system, it means that your boot area (Android area, Linux area) is not set correctly. See the last few operations above.