[time-nuts] IRIG-B with Arduino

[Collins, Graham]

And don't forget the AtMega88 - not as much memory but you can still
pack a lot into it. I think the original Arduino was based on the 88 and
the bootloader is still available meaning you can build an Arduino
compatible board using the 88, you may still be able to by the 88 chip
with the bootloader already programmed from some of the online arduino
suppliers i.e. Adafruit  http://www.adafruit.com/  among the many others
(and eBay too).

Cheers, Graham ve3gtc

 

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Eric Garner
Sent: December 15, 2010 23:57
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] IRIG-B with Arduino

The 168 is it's junior cousin, and it's available. 

Sent from my Banana jr (tm) Mobile Device

On Dec 15, 2010, at 7:21 PM, "Bruce Lane" <kyrrin at bluefeathertech.com>
wrote:

>    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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