[time-nuts] IRIG-B with Arduino

Bruce Lane kyrrin at bluefeathertech.com
Thu Dec 16 02:23:47 UTC 2010


	In fact, I was looking very hard at the 328P. AND I just happen to have an STK500 on the way from the east coast (thanks to an Ebay purchase).

	Already got AVR Studio installed, and I also have IAR's AVR package standing by. In short, I've got plenty to learn with.

	And you're right. I'll be learning both C and AVR assembler as I go along, but the way I learn best is to actually DO something with programming rather than just taking abstract example problems.

	Banzai! ;-)

*********** REPLY SEPARATOR  ***********

On 14-Dec-10 at 22:37 John Miles wrote:

>> Fellow clock-tickers,
>>
>> 	I'm finally starting to learn microcontrollers, and have
>> selected Atmel's AVR line as my tool of choice. I've also
>> discovered the Arduino site, and am starting to learn their IDE as well.
>>
>> 	My first goal will be an open-source/open-hardware IRIG-B
>> decoder (takes IRIG-B 1kHz stream, sends the timecode to an LCD
>> panel). I've noticed a distinct lack of hobby-priced decoders on
>> the market, and I intend to try and remedy that.
>>
>> 	My initial development platform will be the Arduino
>> Mega-2560 board. However, that particular microcontroller is
>> unlikely to be my final chip of choice due to the fact it's not
>> available in a hobbyist-friendly DIP package. If others with more
>> development skill have suggestions for a different chip, I will
>> gladly listen.
>>
>> 	Stay tuned for further developments (no pun intended). I
>> expect this to take at least a few months, as the learning curve
>> looks kind of steep.
>
>That's a good family of parts to start out with.  It is very well supported
>and easy to work with.  You don't really need to mess with the Arduino IDE
>and all the trimmings -- just set up AVR-GCC with WinAVR or one of the
>newer
>distributions and go from there.  If you have ever done any C programming
>before, the learning curve will be measured in hours or days, not months.
>If you haven't, well... there's always assembly.
>
>There is a new low-cost kit with Arduino-like USB programming capability on
>the market:
>http://www.seeedstudio.com/depot/usnoobie-kit-p-708.html?cPath=104_128
>
>The first batch of these shipped with broken bootloader code so you have to
>have an STK-500 or similar programmer to get them up and running.  I
>imagine
>that's been fixed by now, but at any rate, the Atmega328P is probably the
>chip you want, if you want a higher-end AVR controller that still comes in
>a
>DIP.
>
>I just rigged one of them up to drive a YIG synthesizer:
>http://www.thegleam.com/ke5fx/stellex.htm (see December 2010 update at the
>very bottom of the page).  Apart from the USB bootloader confusion and the
>presence of a couple of spurious error/warning messages in the avrdude.exe
>programmer utility, I'd give it two thumbs up at a minimum.  Great little
>device.
>
>-- john, KE5FX
>
>
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-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner & Head Hardware Heavy,
Blue Feather Technologies -- http://www.bluefeathertech.com
kyrrin (at) bluefeathertech do/t c=o=m
"Quid Malmborg in Plano..."




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