1. Purpose[edit | edit source]
The article provides information that is useful when starting with ckermit.
2. Introduction[edit | edit source]
C-Kermit is a combined network and serial communication software package offering a consistent, transport-independent, cross-platform approach to: connection establishment, terminal sessions, file transfer, file management, character-set translation, numeric and alphanumeric paging, automation of file transfer and management, dialogs, and communication tasks through its built-in scripting language.
In this article, we focus only on file-transfer between a host PC and an STMicroelectronics board via a serial console.
3. Installation on your target[edit | edit source]
Kermit is installed on the STMicroelectronics images via the ckermit package
4. Installation on your PC[edit | edit source]
The ckermit package MUST be installed on your PC to perform file tranfers via a serial console
On ubuntu
sudo apt-get install ckermit
 Information
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| Depending of Linux Distibution and Distribution version, ckermit tools can be not present. Please in this case search the solution on Linux forum, search engine to find a solution adapted to your setup |
5. Getting started[edit | edit source]
- generate a configuration file for kermit
Content of kermit_ttyACM0.cfg
set line /dev/ttyACM0 set speed 115200 set carrier-watch off set flow-control none set prefixing all set parity none set stop-bits 1 set modem none
| Information
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| ttyACM0 corresponds to the serial port on Linux connected to the board. It can vary depending on the type of serial connection (ttyS0, ttyUSB0,... |
- Download a file from a board to your PC:
Get the file /etc/hosts from the board:
kermit kermit_ttyACM0.cfg -g /etc/hosts
- Upload a file from your PC to a board:
Put the local file myfile.txt on the board at specific location: /home/root/
kermit kermit_ttyACM0.cfg -s myfile.txt
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To close the kermit session properly, don't forget to send the following command:
kermit kermit_ttyACM0.cfg -f |
6. Tips[edit | edit source]
- Serial port already in use
If you encounter this kind of message (or if the command line is stuck, and displays random characters)
kermit kermit_ttyACM0.cfg -s /etc/hosts Locked by process 24320 can't open device
Please kill/close the serial console application (generaly Minicom on Linux)