problem with serial comunication Programming

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1

Hi, all,

I want to get data from serial port, but my program can¡¯t wait all the time
for data to come. It must use a event-driven way . How can I know when there
is one character ready in the input buffer. Do I need to get the message
from the resource manager devc-8250?



Flying.

2

lpber <lpber@163.com> wrote:

Hi, all,

I want to get data from serial port, but my program can’t wait all the time
for data to come. It must use a event-driven way . How can I know when there
is one character ready in the input buffer. Do I need to get the message
from the resource manager devc-8250?

A couple choices:
select()
io_notify()

You may also find readcond() to be of possible interest.

-David

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