[time-nuts] IRIG-B with Arduino
Bruce Lane
kyrrin at bluefeathertech.com
Thu Dec 16 03:21:25 UTC 2010
Hmm! Hadn't heard that... Any other Atmel DIPs among the AVR family you'd suggest?
Thanks.
*********** REPLY SEPARATOR ***********
On 15-Dec-10 at 18:44 Eric Garner wrote:
>You may want to avoid the 328p. for the last year there have been supply
>problems to the distributors.
>
>-eric
>
>Sent from my Banana jr (tm) Mobile Device
>
>On Dec 15, 2010, at 6:23 PM, "Bruce Lane" <kyrrin at bluefeathertech.com>
>wrote:
>
>> 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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-=-=-=-=-=-=-=-=-=-=-=-
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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