factory-programming atusb

David Reyes Samblas Martinez david at tuxbrain.com
Thu Mar 31 14:40:43 EDT 2011


2011/3/31 Werner Almesberger <werner at almesberger.net>:
> David Reyes Samblas Martinez wrote:
>> I have an idea to enhance your atusb-prg, improving the atusb end with
>> a clamp , to not need to maintain my hand occupied holding the cable.
>
> Yeah, that should be easy. When preparing the shipments I considered
> making a piece of wood that would act as protective casing but also
> as a simple fixture, but eventually decided against it because it
> would have meant even more delays.
>
>> this should be enough , also I want to separate process, flashing from
>> testing, to do one process at time. for the first ~100 units batch,
>
> Why ? For testing you need to connect to USB anyway. You may as well
> do the DFU first. When done, it will jump into the application, so
> you don't even need to unplug.
>
>> Also if all flashing is done in one step , and the demand requires
>> more prodution ratios,
> [...]
>
> Your bottleneck may be testing. Unless you're prepared to set up
> properly shielded RF test chambers, you'll be limited by
> interference between devices. In practical terms, this means that
> you can probably only test one device at a time.
>
> Testing will take a few seconds, so you wouldn't gain much by
> having massively parallel flashing.
>
>> So please let me insist in showme the way to flash bootloader and
>> program at once even with actual avr-dude (also usefull for me to be
>> able to flash arduino sketches with arduino bootloader ) and make me
>> happy ... please[1]
>
> Heh, I did something like this once at Openmoko, for the HXD8
> project. I think I did address assignment by making the devices
> show up by their default address, then bring up one interface
> after the other, SSH into the device, and change its address to
> a unique value. Then proceed a usual.
I mean to flash the avr chip with bootloader and program at once , not
the Nanonote :P
>
> - Werner
>
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-- 
David Reyes Samblas Martinez
http://www.tuxbrain.com
Open ultraportable & embedded solutions
Ben NanoNote, Arduino, Openmoko
Hey, watch out!!! There's a linux in your pocket!!!




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