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- 16550A - A utility for toggling the NS16550A FIFO buffer
-
- by Jon Schneider and Rick Petersen
- re-written by Michael Schuster
-
- USAGE: 16550A [1-4] [ON/OFF/?]
-
- Where '1' thru '4' is the COM port; 'ON' or 'OFF' will toggle the
- FIFO buffer's state, and '?' will simply show its status.
-
- WARNING: Turning on the buffered mode may lock up your system,
- make your COM: port 'disappear', or cause other strange errors when
- using software that cannot handle buffered I/O properly.
-
- This program is a re-write of 16550.EXE by Jon Schneider and
- Rick Petersen. Its purpose is to toggle the FIFO buffer on
- the NS16550A advanced UART chip. Activating this buffer makes
- it possible to support serial communications at high baud
- rates (e.g. 19,200) on slower PC's, or on faster PC's while
- running multitasking operating systems or hardware that can
- cause interrupts to be lost (e.g. Perstor hard disk controllers).
-
- The original 16550.EXE did the job, but when toggling the buffer it
- did not report on what it had done. I have added a routine to
- display the status of the buffer and name the COM: port for which
- the toggle had been requested.
-
-
- Michael Schuster
- CompuServe : [70346,1745]
- Delphi, GEnie, MCI Mail: MSCHUSTER
- UUCP : ...!cucard!dasys1!schuster
-