[dorkbotpdx-blabber] assembler on the arduino?

[Greg Borenstein]

Thanks for all this stuff, Don! It seems like just the thing.

I'll let you know how my first experiments go. Maybe I'll something to  
show at the next Dorkbot...

-- Greg


On Jan 28, 2008, at 5:21 PM, Donald Delmar Davis wrote:

> On the mac I highly recommend AvrMacPack. It is good enough to where  
> I am no longer supporting OSX-AVR. Its complete its a universal  
> binary and it rolls things out where they are easy to work with.
>
> http://www.obdev.at/products/avrmacpack/download-de.html
>
> Again if you have arduino you have a complete (albiet abit old)  
> toolchain.
>
> Good luck.
>
> Don
>
>
>
> Ben Bleything <ben at bleything.net> wrote: On Mon, Jan 28, 2008, Greg  
> Borenstein wrote:
> > 1) write some ASM and compile it to hex (any tips on the tools for
> > this?)
>
> The avr toolchain you can get from macports will have an assembler.
> Check avrfreaks, I'm sure you'll find a small tutorial on getting
> started there.
>
> > 2) learn the Arduino pins-AVR port mapping
>
> I'm pretty sure most of the pins are PORTC, but I don't know why so
> don't trust me there.
>
> > 3) write an LED flasher hello world in ASM
>
> Cake.
>
> > 4) upload hex of hello world to arduino with avrdude
>
> Double cake. Steal the upload code from RAD ;)
>
> > Is there something I'm missing here? Is there any danger of nuking  
> my
> > Arduino's chip in the process here or does the bootloader offer some
> > protection/restrictions in this regard?
>
> I think there's some danger of overwriting your bootloader if you muck
> up the flags, but you can always reflash it. I've got an STK-500 (as  
> do
> a number of other folks) and would be happy to reflash it if it
> comes to that.
>
> That goes for everyone else, too... if you ever need something  
> burned to
> an AVR, let me know and I'll bring my programmer to next meeting.
>
> > Ben -- I'd still like to take you up on the programmer/uC beer- 
> lesson
> > offer if you're up for it. Never hurts to approach things like this
> > from multiple directions.
>
> Emailed you off-list :)
>
> Ben
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