Order Tray | Contact Us | Home | SIG Lists

[wxsig] Whither DS1994L?

sbm at ottix.net sbm at ottix.net
Sun Apr 4 19:13:53 UTC 2010


Greetings folks,
 	Another spring arrives, and a very nice weekend too to boot!.  I 
was cleaing some of the components when this little thing about time cross 
my mind again....so I thought I'd also kick off the solder season by 
saying I have me another on of these fine devices...but whatever happened 
to the 1904 ...?


On Sat, 16 May 2009, William Beals wrote:

> Will:
>
> Good news is that the core method of determining the time is the same
> between the two devices. It is simply a 32-bit counter that increments every
> second and they assume you set the time to "Unix time" which is the number
> of seconds since midnight 1/1/1970.
>
> Not-so-good news is that everything else is different.  A different family
> ID, and different internal addressing to get to that counter.
>
> So, code changes are required to support the DS1904, but only to get the
> data, the other 95% of the code to convert that counter value to a date/time
> should not need modifying.
>
> I tried placing a sample order for one and will see if I get it.  The reply
> email said it needed "Business manager approval", so not-so-sure yet.
>
> will
>
> -----Original Message-----
> From: wxsig-bounces at tapr.org [mailto:wxsig-bounces at tapr.org] On Behalf Of
> Will
> Sent: Saturday, May 16, 2009 8:25 AM
> To: TAPR Weather Station SIG Mailing List
> Subject: Re: [wxsig] Whither DS1994L?
>
>
> On Fri, 15 May 2009, William Beals wrote:
>
>> Bill:
>>
>> I've been busy protesting home land valuations the past three days, a
>
> Gee!  You too?!  I guess all governments follow the same fads....
>
>> bi-annual ritual here in Colorado!  Let me look up the DS1994L and see if
>> Dallas/Maxim did "the right thing" and made the DS1904L
> backwards-compatible
>> with the original DS1994--at least within the context that I care about.
>
> Great thanks.  If needed, I can be a guinea pig.  Hmm.  Maybe I should get
> another kit.....
>
>>
>> will
>>
>> -----Original Message-----
>> From: wxsig-bounces at tapr.org [mailto:wxsig-bounces at tapr.org] On Behalf Of
>> Will
>> Sent: Thursday, May 14, 2009 6:04 PM
>> To: wxsig at tapr.org
>> Subject: [wxsig] Whither DS1994L?
>>
>>
>> Hi all,
>>
>> 	So I've had my T238+ for a while no, and finally have come around
>> to giving it a good home (more like a recycled junction box).  I've been
>> following discussions on and of for a year now, and decided to take the
>> plunge with the X1W kits as well.  (too bad one of the kits is no longer
>> available).
>>
>> 	So here's the question:  I tracked down the discussion related to
>> the DS1994L.  Now, just the other day I thought I had seen several hundred
>> available on the Maxim shop.  Oh goodie I thought.  The next day...oh no,
>> no longer made.  Alright, I guess I was dreaming!  So now it looks like
>> the 1904L is it.  I caught a thread fragment on this SIG about maybe
>> possibly supporting the successor device.  This still on track?
>>
>> Thanks,
>>
>> Bill
>>
>> _______________________________________________
>> wxsig mailing list
>> wxsig at tapr.org
>> https://www.tapr.org/cgi-bin/mailman/listinfo/wxsig
>>
>>
>> _______________________________________________
>> wxsig mailing list
>> wxsig at tapr.org
>> https://www.tapr.org/cgi-bin/mailman/listinfo/wxsig
>>
>
> _______________________________________________
> wxsig mailing list
> wxsig at tapr.org
> https://www.tapr.org/cgi-bin/mailman/listinfo/wxsig
>
>
> _______________________________________________
> wxsig mailing list
> wxsig at tapr.org
> https://www.tapr.org/cgi-bin/mailman/listinfo/wxsig
>



More information about the wxsig mailing list