spi.cpp

#include <stdlib.h>
#include <stdio.h>
#include <wiringPi.h>
#include <wiringPiSPI.h>

#include <iostream>

using namespace std;

const int CHANNEL_CAN = 1;

int main(int argc, char const *argv[])
{
    int result, fd;
    unsigned char buff[30];

    fd = wiringPiSPISetup(CHANNEL_CAN, 500000);
    if (fd == -1) {
        printf("Error setup\n");
        exit(EXIT_FAILURE);
    }

    buff[0] = 0x40;
    buff[1] = 0x01;

    result = wiringPiSPIDataRW(CHANNEL_CAN, buff, 2);



    return 0;
}