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Issuing MAC addresses
These MAC addresses have been assigned to the devices:
The MAC addresses are stored in the EEPROM storage, see also http://www.sics.se/contiki/tutorials/tutorial-running-contiki-with-uipv6-and-sicslowpan-support-on-the-atmel-raven.html . They can be modified by re-writing the EEPROM. First, extract the EEP file from the ELF:
avr-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" \ --change-section-lma .eeprom=0 -O ihex $NAME.elf $NAME.eep
The file looks like this:
$ cat ravenusbstick.eep :08000000021213FFFE14151695 :00000001FF
Flashing the devices
I use the AVR JTAG2 adapter with avrdude. The build system generates ELF files, so it is necessary to extract fuses, EEP and flash images. The “contiki-tools” folder contains scripts for this. The general idea for this is:
echo "Extracting memory sections from ELF" avr-objcopy -R .eeprom -R .fuse -R .signature -O ihex $NAME.elf $NAME.hex avr-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" \ --change-section-lma .eeprom=0 -O ihex $NAME.elf $NAME.eep echo "Make sure the fuses are set to:" avr-objdump -d -S -j .fuse $NAME.elf
The USB Dongle
WARNING: I never managed to program the USB dongle using Mac OS. I used a WinXP machine and AVR Studio to upload the ELF file.
Fuses must be set to: Extended 0xFB, High 0x99, Low 0xDE.
In theory (see the caveat above): cd oktobus/contiki-2.4/examples/ravenusbstick make all avrdude -c jtag2 -P usb -p at90usb1287 -U lfuse:w:0xDE:m -U hfuse:w:0x99:m -U efuse:w:0xFB:m
