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Hi,

My application needs to communicate with one external device at
windows and linux. At windows, I use the package sun provided and run
stably. But when the same program( of course, there is different with
the device's name ) runs at linux(Redhat) using RxTx package, it
always can't get data from port. My program need to send a lot of
times quest to the device and read the response(data) from the serial
port after each request. This process will repeat hundred times. But
the program always can't fully executed. It sometimes will just stay
at the read sentence and wait for data( I am sure the data should be
arrived). When will the program blocked at the read sentence is not
fixed.
program sometimes is blocked at the first time, sometimes after read
several times, sometimes no block at all. But my program running at
windows don't have this kind of problem.

Please give me some ideas. Thanks in advance.

Raine