Can''t ID my Weather Station 1-Wire devices
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Posts: 46,084
I'm stuck. I updated (slightly) the 1-Wire search program but I was
connected directly to a device. At any rate, I had no troubles
identifying the DS2670 I was working with. You might do what you can to
shorten the connection between the station and the Stamp, or try another
pin.
-- Jon Williams
-- Parallax
Original Message
From: Christopher Dundorf [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=2P8b0UVk8cR8MzUVD7VJD9LPz6jP7Khdf7UKnVQBLYHKxhAJYDMrSj92TvYoDOB7uzXTGuh0M7ke]cdundorf@j...[/url
Sent: Tuesday, January 06, 2004 8:23 PM
To: Jon Williams; basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] RE: Can't ID my Weather Station 1-Wire devices
Jon,
The P40 Demo Board has a 1K Ohm pull up on it and the Weather Station
V3.0 works fine when connected to my PC. As a test I put an LED on P15
and it does show signs of activity when the code is running. Do you
have any suggestions on what I might try next?
BTW, I am impressed with your programming skill and knowledge of
interfacing to 1-Wire devices. Especially in your N&V article in issue
82 on the 1Wire Weather Station. I've reviewed the OWIN and OWOUT
sections of the Stamp Manual and there's a lot to it.
Thanks,
Chris
<<<>>>
From: "Jon Williams"
Date: Tue Jan 6, 2004 12:08 am
Subject: RE: [noparse][[/noparse]basicstamps] Can't ID my Weather Station 1-Wire devices I
haven't run that program in a long time, but it does still work. I just
tried it on a DS2760; a device we're using in a thermocouple interface.
I know a lot of people have had trouble connecting to the AAG. Of the
three we purchased to play with, two were bad or had bad parts. I found
I needed a 1K pull-up on the 1-Wire buss to get reliable communications
with the station that does work.
-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office
<<<>>>
Subject: [noparse][[/noparse]basicstamps] Can't ID my Weather Station 1-Wire devices
I'm using the code developed by Jon Williams in 4/01 to identify the ROM
codes within my AAG (formerly DS) 1 Wire Weather Station V3.0. I
ultimately would like to display weather data on an LCD but let's do one
thing at a time. I have a BS2P40 plugged into a P40 Demo Board. I placed
a jumper from P15 to X6 which traces over to the RJ11 jack. I first
tested the Ver3.0 Weather Station on my PC (via the serial port adaper
that comes with the station), then plugged it into the RJ11 jack on the
P40 Demo Board. When I run the code (first 10 lines listed
below) all I get on the debug screen is:
"Searching for 1-Wire Device
ow_pin = 15"
I don't understand why this is happening. Does any have suggestions for
what to do or check?
Thanks,
Chris Dundorf
' Listing 1
' Nuts & Volts - Stamp Applications, April 2001
' {$STAMP BS2p,OWSEARCH.BSP,DSNAMES.BSP}
'
[noparse][[/noparse] Title
]
'
' File...... SRCHDEMO.BSP
' Purpose... Demonstrates Dallas 1-Wire Search Algorithm
' Author.... Jon Williams
' E-mail....
http://groups.yahoo.com/group/basicstamps/post?postID=ncNGoZHobdTj4e5fdS
1
V5lt9YQS9mGxs8cB0FJ3M6tQOnzV5M08_GoFYrIp8goMydrNfkn4
' Started... 27 FEB 2001
' Updated... 05 MAR 2001
[noparse][[/noparse]Non-text portions of this message have been removed]
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connected directly to a device. At any rate, I had no troubles
identifying the DS2670 I was working with. You might do what you can to
shorten the connection between the station and the Stamp, or try another
pin.
-- Jon Williams
-- Parallax
Original Message
From: Christopher Dundorf [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=2P8b0UVk8cR8MzUVD7VJD9LPz6jP7Khdf7UKnVQBLYHKxhAJYDMrSj92TvYoDOB7uzXTGuh0M7ke]cdundorf@j...[/url
Sent: Tuesday, January 06, 2004 8:23 PM
To: Jon Williams; basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] RE: Can't ID my Weather Station 1-Wire devices
Jon,
The P40 Demo Board has a 1K Ohm pull up on it and the Weather Station
V3.0 works fine when connected to my PC. As a test I put an LED on P15
and it does show signs of activity when the code is running. Do you
have any suggestions on what I might try next?
BTW, I am impressed with your programming skill and knowledge of
interfacing to 1-Wire devices. Especially in your N&V article in issue
82 on the 1Wire Weather Station. I've reviewed the OWIN and OWOUT
sections of the Stamp Manual and there's a lot to it.
Thanks,
Chris
<<<>>>
From: "Jon Williams"
Date: Tue Jan 6, 2004 12:08 am
Subject: RE: [noparse][[/noparse]basicstamps] Can't ID my Weather Station 1-Wire devices I
haven't run that program in a long time, but it does still work. I just
tried it on a DS2760; a device we're using in a thermocouple interface.
I know a lot of people have had trouble connecting to the AAG. Of the
three we purchased to play with, two were bad or had bad parts. I found
I needed a 1K pull-up on the 1-Wire buss to get reliable communications
with the station that does work.
-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office
<<<>>>
Subject: [noparse][[/noparse]basicstamps] Can't ID my Weather Station 1-Wire devices
I'm using the code developed by Jon Williams in 4/01 to identify the ROM
codes within my AAG (formerly DS) 1 Wire Weather Station V3.0. I
ultimately would like to display weather data on an LCD but let's do one
thing at a time. I have a BS2P40 plugged into a P40 Demo Board. I placed
a jumper from P15 to X6 which traces over to the RJ11 jack. I first
tested the Ver3.0 Weather Station on my PC (via the serial port adaper
that comes with the station), then plugged it into the RJ11 jack on the
P40 Demo Board. When I run the code (first 10 lines listed
below) all I get on the debug screen is:
"Searching for 1-Wire Device
ow_pin = 15"
I don't understand why this is happening. Does any have suggestions for
what to do or check?
Thanks,
Chris Dundorf
' Listing 1
' Nuts & Volts - Stamp Applications, April 2001
' {$STAMP BS2p,OWSEARCH.BSP,DSNAMES.BSP}
'
[noparse][[/noparse] Title
]
'
' File...... SRCHDEMO.BSP
' Purpose... Demonstrates Dallas 1-Wire Search Algorithm
' Author.... Jon Williams
' E-mail....
http://groups.yahoo.com/group/basicstamps/post?postID=ncNGoZHobdTj4e5fdS
1
V5lt9YQS9mGxs8cB0FJ3M6tQOnzV5M08_GoFYrIp8goMydrNfkn4
' Started... 27 FEB 2001
' Updated... 05 MAR 2001
[noparse][[/noparse]Non-text portions of this message have been removed]
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject
and Body of the message will be ignored.
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