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If you intend to write a GPL-licensed, opensource and multiplatform program in C or C++ and you want to use the serial port, look here:
RS-232 for Linux and WIN32
With this library, you can use GCC on Linux and MinGW on windows to access the serial
port without the need to make any changes in your sourcecode.
Regards.
woooooooow, thanks man!
is there anything like this for the USB port?
But....how to install the library?
Put the two files in the directory where your other C files are.Quote:
Originally Posted by yann
Put the following define in the headerfile of the module from
where you want to use the RS-232 functions:
#include "rs232.h"
Don't forget to tell your compiler that it has to compile and link
the rs232.c file. For example:
gcc main.c rs232.c -o myprogramname
Ok thanks, is there anything like this for USB-port?
You can use this library for USB-devices as well in case your USB-device uses a FTDI-chipQuote:
Originally Posted by yann
for USB-connection in combination with a VCP-driver (Virtual ComPort).
Linux has this USB-VCP-driver already built-in. For windows you need to download
a free driver from the FTDI website.
For more info about VCP-drivers for USB-devices, visit:
Virtual COM Port Drivers
Quote:
Virtual COM port (VCP) drivers cause the USB device to appear as an additional COM port available to the PC. Application software can access the USB device in the same way as it would access a standard COM port.
Thanks man...can you give me some code examples for USB?
There is no difference with a serial port because the VCP-drivers emulates a serial port.Quote:
Originally Posted by yann
Except for that you have to open /dev/ttyUSB0 instead of /dev/ttyS0.
Quote:
Virtual COM port (VCP) drivers cause the USB device to appear as an additional COM port available to the PC.
Application software can access the USB device in the same way as it would access a standard COM port.