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echo: os2prog
to: Jonathan De Boyne Pollard
from: Ryan Thompson
date: 1994-10-30 21:19:42
subject: Re: OS/2 SIO/MAXCOMM.DLL acc

>>> Quoting from Jonathan De Boyne Pollard to Ryan Thompson about
OS/2 SIO/MAXCO

  >     I'm currently using the COMx device handle, but lose too much data
  > at 19200 baud and above to be able to release the program.
JD>   BPS not BAUD!

  It's a null modem device.  BAUD is fine.

JD>   If you find yourself losing data, then ...
JD>   ... increase the number of bytes that you pass with each DosRead and
JD>   DosWrite call.  There is considerable overhead in these calls, and
JD>   it's a waste most times to call them with just a single character
JD>   buffer when you are expecting a stream of characters.

  Ahhh, that would help a lot.  Thanks!

JD>   ... use a UART with a buffer on it, such as a 16550AFN.

  Always!  :-)

bye
Ryan

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