Excercising a serial port
 

Hi,

Has anybody come across a program which allows you to raise and lower
the individual lines on a serial port? I am looking for something to
check out some lines that are being used for discrete outputs. Not
that hard to write, but before I reinvent the wheel, I wanted to see
if it had already been done.


Alan
WA4SCA

Davit Tait's FPP, a PIC programmer driver, has a test mode that allows you
to wiggle the individual lines. Funny you should ask, I was just doing
that.

http://people.man.ac.uk/~mbhstdj/piclinks.html

Keep in mind if you are using NT/W2K/XP you need to get some driver software
like DIRECTIO since the operating system won't allow you to twiddle the
ports directly.

...

"Alan P. Biddle" wrote in message
...
Hi,

Has anybody come across a program which allows you to raise and lower
the individual lines on a serial port? I am looking for something to
check out some lines that are being used for discrete outputs. Not
that hard to write, but before I reinvent the wheel, I wanted to see
if it had already been done.


Alan
WA4SCA

Davit Tait's FPP, a PIC programmer driver, has a test mode that allows you
to wiggle the individual lines. Funny you should ask, I was just doing
that.

http://people.man.ac.uk/~mbhstdj/piclinks.html

Keep in mind if you are using NT/W2K/XP you need to get some driver software
like DIRECTIO since the operating system won't allow you to twiddle the
ports directly.

...

"Alan P. Biddle" wrote in message
...
Hi,

Has anybody come across a program which allows you to raise and lower
the individual lines on a serial port? I am looking for something to
check out some lines that are being used for discrete outputs. Not
that hard to write, but before I reinvent the wheel, I wanted to see
if it had already been done.


Alan
WA4SCA

Thanks! That looks like it should do it. I didn't think to look at
PIC stuff.

Alan

Thanks! That looks like it should do it. I didn't think to look at
PIC stuff.

Alan

That turned out to be just what I needed. Found the problem in 5
minutes, and 4 of that was figuring out how to run the program. The
help file is a little short. :)

Alan

That turned out to be just what I needed. Found the problem in 5
minutes, and 4 of that was figuring out how to run the program. The
help file is a little short. :)

Alan