serin/out and interference
Hi again. I have a BS2 and a BS2SX and I am trying to get them to
communicate with a one wire interface. I know of the different baud
rate timings for the BS2SX, and I have pin 1 from each stamp hooked
up with a wire. I am trying to send HELLO! from the BS2, recieve it
with the BS2SX, and debug the result on the screen. When I run the
program, I get wierd symbols on the screen. I've included my source
code for each. Am I missing something? Thanks
'{$STAMP BS2sx}
A var word
start:
serin 1,16624,[noparse][[/noparse]A]
debug A
goto start
'{$STAMP BS2}
BP:
serout 1,16468,15,[noparse][[/noparse]"HELLO!"]
pause 75
goto start
communicate with a one wire interface. I know of the different baud
rate timings for the BS2SX, and I have pin 1 from each stamp hooked
up with a wire. I am trying to send HELLO! from the BS2, recieve it
with the BS2SX, and debug the result on the screen. When I run the
program, I get wierd symbols on the screen. I've included my source
code for each. Am I missing something? Thanks
'{$STAMP BS2sx}
A var word
start:
serin 1,16624,[noparse][[/noparse]A]
debug A
goto start
'{$STAMP BS2}
BP:
serout 1,16468,15,[noparse][[/noparse]"HELLO!"]
pause 75
goto start
Comments
sjohns10@h... writes:
> Hi again. I have a BS2 and a BS2SX and I am trying to get them to
> communicate with a one wire interface. I know of the different baud
> rate timings for the BS2SX, and I have pin 1 from each stamp hooked
> up with a wire. I am trying to send HELLO! from the BS2, recieve it
> with the BS2SX, and debug the result on the screen. When I run the
> program, I get wierd symbols on the screen. I've included my source
>
At the risk of sounding silly ... be sure you have ground connection between
your two Stamps. Now ask me how I know that this causes what you've
experienced....
-- Jon Williams
-- Parallax
[noparse][[/noparse]Non-text portions of this message have been removed]
wirelessly (sorry, I should have mentioned that before). I have two
Linx Technoligies HP series transmitters/recievers, and I printed
the datasheets for them. I hooked them up according to the diagrams
on the sheets, but I've never dealt with wireless applications for
stamps before, so I have no idea what I'm doing wrong. I'm 15 years
old, and know only basic electronics (taught myself), so there is
probably a simple answer to my problem that I am overlooking. If any
of you can see what I am doing wrong it would be a great help.
Thanks again.
Seth Johnson
> code for each. Am I missing something? Thanks
Assuming you have your baudrate etc set up correctly, then the problem is
caused by using the serin on single characters when you are receiving a
stream.
There are two alternatives, either slow the output down by increasing the
PACE value, or use a formatter on serin to receive the whole char string in
one go. See the manual for the Serin syntax and specifically the "password"
examples for more info.
You really need something like this on input:
Debug "StartInput"
SERIN InPin, BaudRate,HandleParity, TimeOut,HandleNoSerial, [noparse][[/noparse]WAIT("HELLO!"]
Debug "GOTIT",CR
Regards,
Tony Wells
check out jon's advice but it seems to me that your attempting to cram the 6
byte string
"hello!" into a 2 byte word "A".
idont have a fix at the moment but i reckon
someone will be onto it.
regards ian
Original Message
From: sethjaredjeromiejohnson <sjohns10@h...>
To: basicstamps@yahoogroups.com <basicstamps@yahoogroups.com>
Date: Saturday, January 26, 2002 2:57 PM
Subject: [noparse][[/noparse]basicstamps] serin/out and interference
>Hi again. I have a BS2 and a BS2SX and I am trying to get them to
>communicate with a one wire interface. I know of the different baud
>rate timings for the BS2SX, and I have pin 1 from each stamp hooked
>up with a wire. I am trying to send HELLO! from the BS2, recieve it
>with the BS2SX, and debug the result on the screen. When I run the
>program, I get wierd symbols on the screen. I've included my source
>code for each. Am I missing something? Thanks
>
>
>'{$STAMP BS2sx}
>A var word
>
>start:
> serin 1,16624,[noparse][[/noparse]A]
> debug A
>goto start
>
>
>
>'{$STAMP BS2}
>
>BP:
> serout 1,16468,15,[noparse][[/noparse]"HELLO!"]
> pause 75
>goto start
>
>
>
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Check on page 292 on Basic Stamp Programming Manual v 2.0c (last page on
SERIN command) : "Demo Program (SERIN-OUT_SENDER.bs2 &
SERIN-OUT_RECEIVER.bs2). It explains the use of FPin (flow control status).
What could be happening is that your receiver is not waiting time enough to
collect the full message from the sender. Using flow control will make SERIN
wait till the sender frees it.
Best regards
Rui
Mensagem original
De: sethjaredjeromiejohnson [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=sP62RBXHXzYzuIUGRKc_Asq-i_w6CJa7HqpjJCQuz-wCWbmMaxvo77V9x5EuKqlSep0DDjQY3jRFZMg]sjohns10@h...[/url
Enviada: s
The word variable A is indeed an error.
Change the receiver code to
A var byte(6)
N var byte
start:
serin 1,16624,[noparse][[/noparse]str A\6] 'receive string 6 bytes long
for N=0 to 5
debug a(N) 'print all string characters
next
debug cr 'print a carriage return
goto start
regards peter
Oorspronkelijk bericht
Van: Ian Lawson [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Ou2s-h2YDrAvwSdgwaVHDKA0H0idLi3PVX-eVE_ibQaDMe7xJ21YUgc6AuYOfuqU1GhplNZTbhiV6w]irlawson@i...[/url
Verzonden: vrijdag 25 januari 2002 21:34
Aan: basicstamps@yahoogroups.com
Onderwerp: Re: [noparse][[/noparse]basicstamps] serin/out and interference
hi seth (i presume)
check out jon's advice but it seems to me that your attempting to cram the 6
byte string
"hello!" into a 2 byte word "A".
idont have a fix at the moment but i reckon
someone will be onto it.
regards ian
Original Message
From: sethjaredjeromiejohnson <sjohns10@h...>
To: basicstamps@yahoogroups.com <basicstamps@yahoogroups.com>
Date: Saturday, January 26, 2002 2:57 PM
Subject: [noparse][[/noparse]basicstamps] serin/out and interference
>Hi again. I have a BS2 and a BS2SX and I am trying to get them to
>communicate with a one wire interface. I know of the different baud
>rate timings for the BS2SX, and I have pin 1 from each stamp hooked
>up with a wire. I am trying to send HELLO! from the BS2, recieve it
>with the BS2SX, and debug the result on the screen. When I run the
>program, I get wierd symbols on the screen. I've included my source
>code for each. Am I missing something? Thanks
>
>
>'{$STAMP BS2sx}
>A var word
>
>start:
> serin 1,16624,[noparse][[/noparse]A]
> debug A
>goto start
>
>
>
>'{$STAMP BS2}
>
>BP:
> serout 1,16468,15,[noparse][[/noparse]"HELLO!"]
> pause 75
>goto start
>
>
>
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To UNSUBSCRIBE, just send mail to:
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from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/