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@jonasbits
Forked from ntd/libserialport example.c
Last active December 17, 2018 12:49
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libserialport example
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <unistd.h> // for sleep function
#include <libserialport.h> // cross platform serial port lib
//#include "protocol.h"
//const char* desired_port = "COM8";
const char* desired_port = "/dev/cu.usbmodem14101";
const int desired_baud = 9600;
struct sp_port *port;
void list_ports() {
int i;
struct sp_port **ports;
enum sp_return error = sp_list_ports(&ports);
if (error == SP_OK) {
for (i = 0; ports[i]; i++) {
printf("Found port: '%s'\n", sp_get_port_name(ports[i]));
}
sp_free_port_list(ports);
} else {
printf("No serial devices detected\n");
}
printf("\n");
}
void parse_serial(char *byte_buff, int byte_num) {
for(int i = 0; i < byte_num;i++){
printf("%c", byte_buff[i]);
}
printf("\n");
}
int main() {
list_ports();
printf("Opening port '%s' \n", desired_port);
enum sp_return error = sp_get_port_by_name(desired_port,&port);
if (error == SP_OK) {
error = sp_open(port,SP_MODE_READ);
if (error == SP_OK) {
sp_set_baudrate(port,desired_baud);
for(;;) {
sleep(0.5); // can do something else in mean time
int bytes_waiting = sp_input_waiting(port);
if (bytes_waiting > 0) {
printf("Bytes waiting %i\n", bytes_waiting);
char byte_buff[512];
int byte_num = 0;
byte_num = sp_nonblocking_read(port,byte_buff,512);
parse_serial(byte_buff,byte_num);
}
fflush(stdout);
}
sp_close(port);
} else {
printf("Error opening serial device\n");
}
} else {
printf("Error finding serial device\n");
}
return 0;
}
@jonasbits
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added example macos port name and added baud variable

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