BASICstamp and LABview
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Posts: 46,084
Hi,
I am running a program that is written in labview that communicates
with a BASIC stamp; the BASIC stamp controls a peripheral device. The
serial communication code works well about 95% of the time. Then,
for reasons unknown, I seem to lose the ability to communicate with
the device. Interestingly, this loss always seem to happen during the
protocol in which the most amount of data is being transfered from
the BASIC stamp serial port to the computer running LABview. One
suggestion has been to decrease the baud rate from 9600 to 4800. Does
anyone else have any suggestions. I realize that this question is
vague but so is the problem!
Thanks!
-yale
I am running a program that is written in labview that communicates
with a BASIC stamp; the BASIC stamp controls a peripheral device. The
serial communication code works well about 95% of the time. Then,
for reasons unknown, I seem to lose the ability to communicate with
the device. Interestingly, this loss always seem to happen during the
protocol in which the most amount of data is being transfered from
the BASIC stamp serial port to the computer running LABview. One
suggestion has been to decrease the baud rate from 9600 to 4800. Does
anyone else have any suggestions. I realize that this question is
vague but so is the problem!
Thanks!
-yale
Comments
(depending of mode).
ACJacques
yec@d... wrote:
>
> Hi,
>
> I am running a program that is written in labview that communicates
> with a BASIC stamp; the BASIC stamp controls a peripheral device. The
> serial communication code works well about 95% of the time. Then,
> for reasons unknown, I seem to lose the ability to communicate with
> the device. Interestingly, this loss always seem to happen during the
> protocol in which the most amount of data is being transfered from
> the BASIC stamp serial port to the computer running LABview. One
> suggestion has been to decrease the baud rate from 9600 to 4800. Does
> anyone else have any suggestions. I realize that this question is
> vague but so is the problem!
>
> Thanks!
>
> -yale
Mike
At 01:11 PM 1/25/2001 -0200, you wrote:
>Serial links to/from Stamp should have pulldown or pullup resistors
>(depending of mode).
>ACJacques
>
>_______________________________
Mike Walsh
walsh@i...
>Hi,
>
>I am running a program that is written in labview that communicates
>with a BASIC stamp; the BASIC stamp controls a peripheral device. The
>serial communication code works well about 95% of the time. Then,
>for reasons unknown, I seem to lose the ability to communicate with
>the device.
>
I had a similar project where a lot of time was invested in using a stamp2
with Labview. In that experience, unfortunately, the RS232 communications
were unstable. The stamp2 added extra characters to the data stream that
were NOT part of its programmed response. LabViews ability (or mine) to parse
the strings of random errors was never successful.