C or C++ program to read data from serial port?

hello





i need a c or c++ program to read data from serial port connected to sick pls laser scanner.model is 200-113.





I have tried several programs in vc++,c,c++ but no one is able to read data serial port.





In one program i am getting msg


xxx.exe:MFC42D.dll:0xc000000: Access violation





When debugged i get


No matching symbol found :kernel32.dll


user32.dll


msvcrt60.dll


and so on.


And finally i get the program ends witih 0x0 code.





in another program it is saying bios.h not found





Whiel in anotehr it says could not able to find outportb()





I dont know the problem is.





But i need one program for this special case ie reading data from serial port connected to sick pls 200-114 laser scanner.


Eagerly waiting for answer


.Any help would be greatly appreciated.

C or C++ program to read data from serial port?
I have some c++ serial port code that does what you want. Email me and I will send it to you. I have used it for a few apps. and it seems to work just fine.
Reply:will have 2 machines hooked up via the COM1 ports.


1 machine running windows having a hyperterminal session opened and the other machine running Linux having my program running.


I want to able to type a character into the hyperterminal window and have the character displayed on the Linux machine.





Im very new to C programming but heres what i have for my program so far, just not sure how to read the input and display it:





#include %26lt;stdio.h%26gt; /*Standard input/output definitions*/


#include %26lt;string.h%26gt; /*String function definitions*/


#include %26lt;unistd.h%26gt; /*Unix standard function definitions*/


#include %26lt;fcntl.h%26gt; /*File control definitions*/


#include %26lt;errno.h%26gt; /*Error number definitions*/


#include %26lt;termios.h%26gt; /*POSIX terminal control definitions*/








int open_port(void)


{


int fd; /* File descriptor for the port */





fd = open("/dev/ttyS0", O_RDWR | O_NOCTTY | O_NDELAY);


if(fd == 0)


{


perror("open_port: Unable to open /dev/ttyS0 - ");


}


else


fcntl(fd, F_SETFL, 0);





return (fd);


}





/*Configire port*/





struct termios options;





/*Get the current options for the port*/





tcgetattr(fd, %26amp;options);





/*Set the Baud rates to 19200*/





cfsetispeed(%26amp;options, B19200);


cfsetospeed(%26amp;options, B19200);





/*Enable received and set local mode*/





options.c_cflag |= (CLOCAL | CREAD);





/*Set new options for port*/





tcsetattr(fd, TCSANOW, %26amp;options);





/*Set data bits*/





options.c_cflag %26amp;= ~CSIZE; /*Mask the character size bits*/


options.c_cflag |= CS8; /*Select 8 data bits*/





/*Set RAW input*/





options.c_lflag %26amp;= ~(ICANON | ECHO | ECHOE | ISIG);





/*Set Raw output*/





options.c_oflag %26amp;= ~OPOST;





/*Set timeout to 1 sec*/





options.c_cc[VMIN] = 0;


options.c_cc{VTIME] = 10;





/*Code to read input goes here*/





close(fd);





Can anyone advise on this?





Thanks
Reply:Here is one program:


http://www.fogma.co.uk/foggylog/archive/...


also this article should help:


http://www.codeproject.com/system/serial...





You should know what is expected from your input device, though.
Reply:i guess both can be used.. there is some library which provides some methode to read data from serial port