Programming and Debugging Targets

Programming with avrdude

Note:

avrdude uses libusb to access JTAG-ICE, Dragon, ISP etc. Section Using USB connected Programmers under Linux describes, what to do, that normal users can access these devices.

  (1)  avrdude -P usb -p m1281 -c jtag2 -U fl:w:install/bin/sniffer_stk541.hex
  (2)  avrdude -P usb:4711 -p m1281 -c jtag2 -U fl:w:install/bin/sniffer_stk541.hex
  (3)  avrdude -P usb:1234 -p m1281 -c avrisp2 -U fl:w:install/bin/sniffer_stk541.hex

Debugging with avarice + avr-gdb (ddd)

   avarice -I -P atmega1281 -2 -j usb --detach :4242
   ddd --debugger avr-gdb install/bin/sniffer_stk541.elf &

When ddd/avr-gdb has opened, type "target remote:4242<ENTER>" in order to connect avarice and avr-gdb.

Using DebugWire

Enable DebugWire

• use any isp capable programmer: stk500v2, jtag2isp, dragon_isp??

      ISPDUDE="-c jtag2isp -P usb -p t44"
      DWDUDE="-c jtag2dw -P usb -p t44"
      avrdude $ISPDUDE  -F -U hfuse:w:????:m
      avrdude $DWDUDE -F
  

http://www.homebuilthardware.com/index.php/avr/linux-avrdragon-tutorial-1/