readme.txt

一个演示串口通讯的例子

Hi,

This package demonstrates the use of Serial comms. RCOMM.H/RCOMM.C
handle all of the RS232 functions while RTERM.C is a very simple
terminal emulation program. I mean, very simple! However, it does offer
a good demonstration of the serial comms functions. I'd explain more
about how they work but I can't be asked to.

NOTE: Unlike the rest of the known universe, I don't use Borland or
Watcom. I actually use, and like very much, the Symantec C/C++ compiler.
The RTERM.C program is pretty bog standard. However, RCOMM.C uses some
extensions I'm sure are specific to Symantec. They pertain to an
interrupt structure called 'struct INT_DATA' and functions called
int_intercept() and int_restore(). If you are familiar with interrupts
you should be able to figure out what these do. If you're not familiar
with interrupts you've had your head buried in the sand for too long<g>!