Re: Data Dropouts with Communications API - Help!

Hi again Roedy:

I have downloaded the RXTX 2.1 package which I am going to try
and run under Windows XP.

Since there are not any dropouts with HyperTerminal it would
seem that the computer hardware is able to handle the data stream OK.
I use an external 56K modem for Internet access all the time. The com
port interface to it runs at 115K and it seems absolutely solid. I can
only conclude that there must be something wrong with my code or
underlying comm API. It will be interesting to see how RXTX performs
(assuming I can get it to compile).

Many thanks again for your interest and help!

Tom Alldread

>
>I handled this in a department store process control system by using
>a not-that-expensive smart serial i/o card in the PC. IIRC the card
>had a buffer of about 64K and fielded the interrupts itself. My
>Abundance app then had plenty of time to process the messages. The
>card could handle multiple serial ports. Output too was simple and
>required no threading. The app send the message which the card
>accepted and buffered.
>
>To do the same thing in Java today, you would have JNI-C interface to
>the card.
>
>If you are using the Java COMM stuff, people have complained it was
>badly written only suitable for driving a printer.
>
>See http://mindprod.com/jgloss/serialport.html
>
>for other serial port software.

.

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