rs232 problem

Archiver

Hi All:

I am Bill and new to this group , I enjoy the good coments you have
posted.


I have a dell 600 mhz laptop computer runing Windows ME and I can't
get it to talk to the basic stamp II in order to program it. The stamp
II hardware and software and cable all worked on my Toshiba pentium
120 computer. I checked my port settings and did not know how to
get them to program the stamp.

When I use the notify button it tells me I have the basic stamp
connected. When I run a program it will run through the program once
and seem not to see the looping comands. I know that i could get a
usb serial port or serial card I think both cost around $80.00 US
and I can't find any localy.

Thank you for the help .
Bill

Archiver

Please ignor my previous message. Here is a better description of
my problem:

I am interfacing with a DVD that has an RS232 port. Using
HyperTerminal, I send the dvd the command ?C <cr> and I get 08. The
08 according to the DVD manual is a "two digit integer". So when
the DVD is on chapter 5 for example, I get 05.

From the Stamp, I do the following:

serData var word
serOut outPin,baudRate,[noparse][[/noparse]"?C",cr]
serIn inPin,baudRate,[noparse][[/noparse]serData]
debug serData

serData gives me a fluctuating digit of either 4 or 48. I am sure
that my communication with the DVD is correct as I am doing many
other commands without any problems.

Can someone help...



Al

Archiver

You need to tell the Stamp to follow your DVD manual. Since the manual
specified "two-digit integer" you might want to change your SERIN line to:

SERIN inPin, baudRate, [noparse][[/noparse]DEC2 serData]

This will cause the SERIN statement to convert the two-digit ASCII data (it's
being sent as ASCII or you wouldn't have seen it in HyperTerminal) to
decimal.

-- Jon Williams
-- Parallax


In a message dated 12/26/2002 7:34:56 AM Central Standard Time,
brownstamp@y... writes:

> Please ignor my previous message. Here is a better description of
> my problem:
>
> I am interfacing with a DVD that has an RS232 port. Using
> HyperTerminal, I send the dvd the command ?C <cr> and I get 08. The
> 08 according to the DVD manual is a "two digit integer". So when
> the DVD is on chapter 5 for example, I get 05.
>
> From the Stamp, I do the following:
>
> serData var word
> serOut outPin,baudRate,[noparse][[/noparse]"?C",cr]
> serIn inPin,baudRate,[noparse][[/noparse]serData]
> debug serData
>
> serData gives me a fluctuating digit of either 4 or 48. I am sure
> that my communication with the DVD is correct as I am doing many
> other commands without any problems.
>
> Can someone help...



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