User Space via FTP. Advantech EKI-1121L, EKI-1122L, EKI-1124L

4.2.2

User Space via FTP

Sometimes, user wants to execute applications in file system of EKI-1121L/1122L/

1124L. Please use the following commands to get and execute the files.

Figure 4.1 How to Get Applications via FTP

4.2.3

Root File-system

we support jffs2 file system in current version.

4.3

Device APIs

4.3.1

Serial port APIs

Each serial port has an associated device file. To access a serial port, you simply open the corresponding device file.

Peripheral

Serial Port 1

Serial Port 2

Serial Port 3

Serial Port 4

Device File

/dev/ttyAP0

/dev/ttyAP1

/dev/ttyAP2

/dev/ttyAP3

Port configuration is done using the POSIX termios interface. Developing in C, you will first need to include the <termios.h> header file to use the required functions.

Additionally, the serial port line drivers are software configurable for RS-232, RS-422 or RS-485 operation, through the termios interface. You will need to include the adv.h header file or the following defines.

#define IRS4220100000

#define IRS4850200000

39 EKI-1121L/1122L/1124L User Manual