avrdude: stk500v2_ReceiveMessage(): timeout with ADDAC VCC

Question

I am getting the above error message uploading the ADDAC VCC, and the only thing that's changed I think is the patch is bigger.

Is there a fix for this or will I have to send it back? Hope my formatting is OK

Binary sketch size: 12,330 bytes (of a 258,048 byte maximum)
/usr/share/arduino/hardware/tools/avrdude -C/usr/share/arduino/hardware/tools/avrdude.conf -v -v -v -v -patmega2560 -cwiring -P/dev/ttyUSB0 -b115200 -D -Uflash:w:/tmp/build953252908946386724.tmp/comps.cpp.hex:i 
avrdude: ser_recv(): programmer is not responding
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: Send: . [1b] . [01] . [00] . [01] . [0e] . [01] . [14] 
avrdude: Version 6.0.1, compiled on Oct 21 2013 at 17:07:18
 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
 Copyright (c) 2007-2009 Joerg Wunsch
 System wide configuration file is "/usr/share/arduino/hardware/tools/avrdude.conf"
 User configuration file is "/home/luke/.avrduderc"
 User configuration file does not exist or is not a regular file, skipping
 Using Port : /dev/ttyUSB0
 Using Programmer : wiring
 Overriding Baud Rate : 115200
avrdude: wiring_open(): releasing DTR/RTS
avrdude: wiring_open(): asserting DTR/RTS
avrdude: Send: . [1b] . [01] . [00] . [01] . [0e] . [01] . [14] 
avrdude: ser_recv(): programmer is not responding
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_getsync(): timeout communicating with programmer
avrdude done. Thank you.
avrdude: ser_recv(): programmer is not responding
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: Send: . [1b] . [01] . [00] . [01] . [0e] . [01] . [14] 
avrdude: ser_recv(): programmer is not responding
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: Send: . [1b] . [01] . [00] . [01] . [0e] . [01] . [14] 

• microtherion: As a first step in tracking this down, you should enable the "Verbose Upload" option in the Arduino preferences. That will give you considerably more output to let you know whether the upload is failing right away, or in the middle of communication. Depending on your board, you might want to try hitting the RESET button on your board just before starting the upload, in order to force the boot loader to run.

Answer 1

Your log is showing that communication is failing right away (avrdude never gets a proper response). This can mean that

1. the VCC is not resetting
2. there is no bootloader installed
3. there is some other defect

You can test case is by manually hitting the reset switch around the time that avrdude starts. If the necessary pins are available, you can exclude case 2 by installing a new boot loader with a programmer, which also tests scenario 3 a bit.