News from Mac OSX - The Solution of the Mysterious Serial Port -

R. Hillen mail at richard-hillen.de
Mon Aug 25 14:29:44 EDT 2003


Hello list,

thank you all for your answers.


In the meantime I used your tips, esp. waits between openPort, send, 
read, closePort.
For testing I used a bridge from pin 2 to pin 3 (DB9 or DB25) to send 
_and_ receive with my serial device and had success.

So I think, the main problem was using a serial RS232-Port on the 
windows terminal-side with a serial RS 485-port on the Mac-side, which 
resulted in not well defined voltages.

Finally I tested on Mac OSX 10.2.6, Rev 2.1 using Griffin Technologies 
gPort and alternatively the Keyspan USB2Serial, both with success.

Very happy

Richard Hillen.
  




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