Okay, solved a driver issue with the Arduino, which I probably should have done before even trying, but I was impatient... Same error. Do I have to try burning the boot loader from a command line or is there a way in GUI to swap stk500v1 for stk500v2? I tried switching to "AVRISP Mk II" but got the following:
Arduino: 1.6.4 (Windows 7), Board: "Sanguino, ATmega1284 or ATmega1284P (16 MHz)"
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega1284p -cstk500v2 -Pusb -e -Ulock:w:0x3F:m -Uefuse:w:0xFD:m -Uhfuse:w:0xDE:m -Ulfuse:w:0xFF:m
avrdude: Version 6.0.1, compiled on Apr 15 2015 at 19:59:58
Copyright (c) 2000-2005 Brian Dean, [www.bdmicro.com]
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"
Using Port : usb
Using Programmer : stk500v2
Error while burning bootloader.
avrdude: usbdev_open(): did not find any USB device "usb"
I assume this is because the Arduino GUI is looking for some other USB composite device and all I have available is a USB COM port?
Arduino: 1.6.4 (Windows 7), Board: "Sanguino, ATmega1284 or ATmega1284P (16 MHz)"
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega1284p -cstk500v2 -Pusb -e -Ulock:w:0x3F:m -Uefuse:w:0xFD:m -Uhfuse:w:0xDE:m -Ulfuse:w:0xFF:m
avrdude: Version 6.0.1, compiled on Apr 15 2015 at 19:59:58
Copyright (c) 2000-2005 Brian Dean, [www.bdmicro.com]
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"
Using Port : usb
Using Programmer : stk500v2
Error while burning bootloader.
avrdude: usbdev_open(): did not find any USB device "usb"
I assume this is because the Arduino GUI is looking for some other USB composite device and all I have available is a USB COM port?