RS232 Communication in C++ under Linux

[foifsensej]

Hello!

I would like to communicate with my microcontroller over the rs232 port. First i would just like to send some characters to the comport. Does anyone have some good tutourials for C/C++ under Linux? (Links, pdf?)

Thanks!

 

[namelesssix]

you will found it in howto directory
or in kernel documentation

you'll got the example in that file

 

[stegr]

there are two possibilities to access the serial port under linux:
- ioperm
- a kernel module

ioperm needs root login to be used and is because of this not very often seen in bigger projects but if you just need it for testing, it might be enough for you. Here google is your friend.

Writing a kernel module is quite "interesting" and consumes a lot of time.
I haven't written one yet, but I started doing it and aborted after around 30 hours of hacking and trying...
But you also could find a tutorial. The topic will probably be "General Hardware Access Kernel Module Development" or something like that.

I think a have seen a german book in the library called "MSR mit Linux" or something like that. If I find it again, I will post the infos here.

 

[tcsa35]

The Serial Programming Guide for POSIX Operating Systems.

This guide is organized into the following chapters and appendices:
Chapter 1, Basics of Serial Programming
Chapter 2, Configuring the Serial Port
Chapter 3, Talking to MODEMs
Chapter 4, Advanced Serial Programming
Appendix A, RS−232 Pinouts
Appendix B, ASCII Control Codes

 

[CM600]

Look for the serialhowto in the HowTo section of your Linux disitribution.

 

[zkai2000]

Try these sites:

http://www.circuitsonline.net/forum

**broken link removed**

i hope they help...u'll need to do some surveys