CARAMBOLA2 FLASH MANUAL (linux version)

The carambola flashing script is written in python. The function which it performs is:

• MAC address change directly onto eeprom via bootloader.
• New firmware image flashing.

Download the prepared archive with the flashing scripts. Scripts are written in python and by default you will need extra modules.

After extracting the zip file. Run following commands:

apt-get update
apt-get install python-paramiko
apt-get install python-serial
apt-get install tftpd-hpa

Place the tftpboot folder at the root directory "/" mv carambola_atheros/tftpboot /tftpboot. Path will be /tftpboot.

Edit tftp-hpa configuration file at /etc/default/tftpd-hpa accordingly:

TFTP_USERNAME="tftp"
TFTP_DIRECTORY="/tftpboot"
TFTP_ADDRESS="0.0.0.0:69"
TFTP_OPTIONS="--secure"

Navigate to carambola_atheros folder.

Open vi carambola_cfg.ini and edit start and end of MAC ranges.

Open vi atheros_start.py and change IP addresses and serial interface if needed, by default interface on linux is /dev/ttyUSB0

Plug serial cable to carambola2 and to PC

Enter the command below to start script sudo python atheros_start.py. Push reset button on the board to restart it.

If all steps completed successfully you will have window similar to the one below and the flashing procedure will start:

IMPORTANT: after each serial cable unplugging you will have to reload the atheros_start.py script with: sudo python atheros_start.py