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DevHeads IoT Integration Server•2y ago
Boss lady

Why is my Zynq-7000 marine navigation system failing to initialize the NMEA 2000 GPS sensor?

I am developing a marine navigation system using a Zynq-7000 with Embedded Linux. The system should read data from an NMEA 2000 GPS sensor. I have confirmed the serial port connection and settings, checked the GPS sensor configuration and data format, made sure the NMEA 2000 library is correctly installed and configured.
But i am getting the error Failed to initialize NMEA 2000

#include <stdio.h>
#include <nmea2000.h>

int main() {
    NMEA2000 *nmea;
    nmea = nmea2000_init("/dev/ttyUSB0");

    if (nmea == NULL) {
        fprintf(stderr, "Failed to initialize NMEA 2000\n");
        return 1;
    }

    float latitude, longitude;
    if (nmea2000_get_gps(nmea, &latitude, &longitude) != 0) {
        fprintf(stderr, "Failed to read GPS data\n");
    } else {
        printf("Latitude: %f, Longitude: %f\n", latitude, longitude);
    }

    nmea2000_cleanup(nmea);
    return 0;
}

@Middleware & OS
Solution
Thanks for the idea, due to ur questions I was able to make research and get the list of possible errors, it turns out in my case it was necessary permissions not being granted to access serial device I used sudo and it worked just fine
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