avrdude unable to talk to Arduino board (via uftdi)

[Warren Block]

On Wed, 4 Aug 2010, Marcin Cieslak wrote:
>> How-To-Repeat:
>
> Use command:
>
> # avrdude -c arduino -p m328p -P /dev/cuaU0 -v
>
> avrdude: Version 5.10, compiled on Aug  3 2010 at 23:59:35
>         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
>         Copyright (c) 2007-2009 Joerg Wunsch
>
>         System wide configuration file is "/usr/local/etc/avrdude.conf"
>         User configuration file is "/root/.avrduderc"
>         User configuration file does not exist or is not a regular file, skipping
>
>         Using Port                    : /dev/cuaU0
>         Using Programmer              : arduino
> avrdude: stk500_recv(): programmer is not responding

Steven Kreuzer and I had that type of problem when working on the 
devel/arduino port, but eventually ironed them out (AFAIK).

If you install the port and set build.verbose=true and 
upload.verbose=true in ~/.arduino/preferences.txt, you should be able to 
see what options it uses.  My hunch is a 19200 or 57600 baud rate, but I 
can't swear to that, and it's been some time since I tried it.