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/**************************************************
file: demo_tx.c
purpose: simple demo that transmits characters to
the serial port and print them on the screen,
exit the program by pressing Ctrl-C
compile with the command: gcc demo_tx.c rs232.c -Wall -Wextra -o2 -o test_tx
**************************************************/
#include <stdlib.h>
#include <stdio.h>
#ifdef _WIN32
#include <Windows.h>
#else
#include <unistd.h>
#endif
#include "rs232.h"
int main()
{
int i=0,
cport_nr=0, /* /dev/ttyS0 (COM1 on windows) */
bdrate=9600; /* 9600 baud */
char mode[]={'8','N','1',0},
str[2][512];
strcpy(str[0], "The quick brown fox jumped over the lazy grey dog.\n");
strcpy(str[1], "Happy serial programming!\n");
if(RS232_OpenComport(cport_nr, bdrate, mode))
{
printf("Can not open comport\n");
return(0);
}
while(1)
{
RS232_cputs(cport_nr, str[i]);
printf("sent: %s\n", str[i]);
#ifdef _WIN32
Sleep(1000);
#else
usleep(1000000); /* sleep for 1 Second */
#endif
i++;
i %= 2;
}
return(0);
}
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