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[wxsig] Another DS1904 question

John Vause jdv at iglou.com
Sun Oct 21 15:47:08 UTC 2012


Ordered the DS1904 from Embedded Data Systems along with a
DS9490R# - USB to 1-Wire / iButton Adapter (Decided to update from the 
DS9097U since
EDS had a $25 minimum order). EDS lists both the DS1904($6.18) and the 
DS1994 ($14.47);
I elected to go with the1904 since the 1994 is EOL.

Complied the code with the updated timelog.asm routine. No problems.

Had to update my One-Wire Viewer software in order to start the DS1904
clock. (The version I had wouldn't read the DS1904; tells you how old 
some of
the software is.)

T238 clock is running great and good for another 10 years. :-)

Thanks.

John

On 10/17/2012 10:38 PM, John Vause wrote:
> Compiling the source code isn't a problem; I found my old copy of the 
> PEMicro development
> (great fun, poking around the backup files of a long dead file server 
> and trying to relearn software
> I haven't messed with for about 12 years) software and have
> compiled a firmware version to support the Bitson barometer sensor.
> At least CWOP seems to think I have, anyway. <GRIN>
>
> I'll order a DS1904 and recompile with the Timelog.asm code you sent me.
> I'll let you know how it all works out.
>
> On 10/14/2012 6:13 PM, William Beals wrote:
>> John:
>>
>> Weird, I guess I made the modification, but never published it. In 
>> addition
>> to the DS1994 I added DS2404 and DS1904.  Here is the updated 
>> timelog.asm
>> file.  It has been a while since I last assembled everything. Are you 
>> able
>> to assemble on your end?  If not I'll need a day or two to get things
>> working again.
>>
>> will
>>
>> -----Original Message-----
>> From: John Vause [mailto:jdv at iglou.com]
>> Sent: Friday, October 12, 2012 9:06 PM
>> To: TAPR Weather Station SIG Mailing List
>> Cc: William Beals
>> Subject: Re: [wxsig] Another DS1904 question
>>
>> Will, I've searched the timelog.asm code that comes with the 1.16.1R 
>> source
>> code on your website and I can find no routine that searches for the 
>> 0x24
>> family code.
>>
>> Is it possible you compiled the new routine into the 1.16.1R s19 file 
>> but
>> left it out of the 1.16.1R source code?
>>
>> Just an FYI; I'm running the original T238 but that shouldn't matter 
>> in this
>> case. Also, I am altering and re-compiling your source code to 
>> support the
>> Bitson barometer sensor I've added to my weather station.
>>
>> Attached is the timelog.asm source code from 1.16.1R that I 
>> downloaded from
>> your website.
>>
>> On 10/11/2012 10:53 PM, William Beals wrote:
>>> John:
>>>
>>> Sorry for a delayed response.
>>>
>>> I dug into my code and found what I was looking for.  In timelog.asm I
>>> look for family IDs of both 0x04 (DS1994) and 0x24 (DS1904). The
>>> T238+ should work with both.
>>>
>>> If not, let me know.
>>>
>>> will
>>>
>>> -----Original Message-----
>>> From:wxsig-bounces at tapr.org [mailto:wxsig-bounces at tapr.org] On Behalf
>>> Of Michael Seibel
>>> Sent: Tuesday, October 02, 2012 4:56 PM
>>> To: 'TAPR Weather Station SIG Mailing List'
>>> Subject: Re: [wxsig] Another DS1904 question
>>>
>>> John - I am heavily involved with the county for the next 48 hours - I
>>> will respond when I get back. I do not want to give wrong information,
>>> need my notes.
>>> Mike Seibel
>>>
>>> -----Original Message-----
>>> From:wxsig-bounces at tapr.org [mailto:wxsig-bounces at tapr.org] On Behalf
>>> Of John Vause
>>> Sent: Tuesday, October 02, 2012 12:42 PM
>>> To: TAPR Weather Station SIG Mailing List
>>> Subject: [wxsig] Another DS1904 question
>>>
>>> Sorry if this has been asked before but as my DS1994 has "expired"
>>> does the 1.16.1R firmware support the DS1904 "Time in a can" iButton?
>>>
>>> Looking at the "timelog.asm" code I can see where it searches for the
>>> DS1994 family code "$04" (04 hex)
>>> but according to Maxim's datasheet on the DS1904:
>>> http://datasheets.maximintegrated.com/en/ds/DS1904.pdf
>>> the DS1904 family code is 24h (24hex).
>>>
>>> Do I need to "fix" the family code and re-compile to support the 
>>> DS1904?
>>>
>>>
>>> -----
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>>>
>>>
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>>>
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>> Version: 2012.0.2221 / Virus Database: 2441/5331 - Release Date: 
>> 10/14/12
>

--



-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2221 / Virus Database: 2441/5345 - Release Date: 10/21/12




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