Select 'Filenames and paths' and press 'F' Logging options. By default this will be saved as 'minicom. Press 'Enter' to save the changes. Partners Support Community Ubuntu. Page History Login to edit.
To modify the different configurations, press the key corresponding to the setting. For example, press the 'A' key to modify the path to the Serial Device. Press the 'Enter' key to save the parameters for the setting. Press enter and scroll to Modem and dialing and press enter again. Clear out the Init string , Reset string , Dialing prefix 1 , Dialing suffix 1 , Dialing prefix 2 , Dialing suffix 2 , Dialing prefix 3 , Dialing suffix 3 by pressing the corresponding letters [A-H] then deleting the string.
The final result should look like:. You will most likely wish to modify the Serial Device setting to have the path to the serial port you normally use.
This way, you'll be able to run the command without any options or commands. Press the 'Esc' key to be be brought back to the configurations page.
The next setting that needs to be configured is the Modem and dialing. Press the 'A' key and delete its content. Hit the 'Enter' key to set the setting as blank.
Also do this for B through H and K. Hit the 'Esc' key when finished deleting the content of these settings. That's all the modifications that need to be done to get minicom set up. You'll need to save the configurations in one of two ways:. Run the minicom command to start minicom with the serial port setting you configured above.
You should now be back at the Welcome screen. Type A x to quit. The names of each setting in your custom configuration file should match mine with the exception of the port name. If you edited any other lines, even if you did not change the value, the edited setting will also be written to the configuration file. For example, if you edited the line speed, then you will also see settings for baudrate, bits, parity and stopbits.
Turn on your device. You will see a lot of output being written to the screen as your device loads. In the end, you should see a login prompt. Since minicom is a terminal emulator, you can click on the screen and enter your login credentials as if you were connected to the device with a keyboard and monitor. That is because the receiver missed the transmitters bits when the device booted during the time that the connection was not established.
Take a look at how nmtui renders:. In order to run ncurses applications correctly we need the TTY to be initialized in raw mode. However, when raw mode is configured in this way, minicom still appears to perform its own bytestream translation.
Perhaps there is something that I have missied here. Please feel free to comment if you have suggestions. I hope that you learned something that interests you about serial communication. Please comment and ask questions. If you notice a mistake, let me know and I will correct it. Here is some additional reading on the subject of serial communication. Also, here is a list of other serial communication programs and utilities that you might find useful.
In my next post, I will cover how to connect to a serial TTY initialized in raw mode and pass the untranslated byte stream to a terminal emulator that can render ncurses applications correctly.
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