Messages

1

Network / Re: Socket.send fails on Windows

« on: August 15, 2014, 03:06:41 pm »

OK, I figured out that localhost is not working on Win8.1, so I put 127.0.0.1 instead.

SOLVED!

2

Network / Socket.send fails on Windows

« on: August 15, 2014, 02:06:44 pm »

Hi,
I finished program for controlling my quadcopter for linux machine and it works.

#include <SFML/Network.hpp>
#include <SFML/Window.hpp>
#include <iostream>

sf::UdpSocket socket;

sf::Packet paczka;
int id = 1; // 1 -> pc, 2 -> dron

sf::IpAddress odbiorca = "localhost";
unsigned short port = 54321;

#define rcthr z
#define roll x
#define pitch y
#define yaw r
#define high v

int old_roll = 0;
int old_rcthr = 0;
int old_pitch = 0;
int old_yaw = 0;
int old_high = 0;

void wypisywanie(int x, int y, int z, int r)
{
        std::cout << "\nroll(x): " << x << "  pitch(y): " << y << "  rcthr(z): " << z << "  yaw(r): " << r;
}



void push() {
        if (socket.send(paczka, odbiorca, port) != sf::Socket::Done)
        {
                std::cout << "ERROR\n";
        }
}

int main()
{
        int sygnal = 2;
        //odbiorca = "localhost";
        sf::Joystick::update();
        int button = sf::Joystick::getButtonCount(0);
        std::cout << "znalazlem" << button << "przyciskow";
        while (true)
        {
                sf::Joystick::update();

                int roll = sf::Joystick::getAxisPosition(0, sf::Joystick::X);
                int pitch = sf::Joystick::getAxisPosition(0, sf::Joystick::Y);
                int rcthr = sf::Joystick::getAxisPosition(0, sf::Joystick::Z);
                int yaw = sf::Joystick::getAxisPosition(0, sf::Joystick::R);
                int high = sf::Joystick::getAxisPosition(0, sf::Joystick::PovY);
                yaw *= -1;
                rcthr *= -1;
                rcthr += 100;
                //    wypisywanie(roll,pitch, rcthr, yaw, high);

                //      if ( (roll != old_roll) or (pitch != old_pitch) or (rcthr != old_rcthr) or (yaw != old_yaw) or (high != old_high)  ) {

                wypisywanie(roll, pitch, rcthr, yaw);
                paczka.clear();
                paczka << sygnal << id << roll << pitch << rcthr << yaw;
                push();

                sf::Time t = sf::seconds(0.05f);
                sf::sleep(t);  
                //      }


        }
        //std::cout << sf::Joystick::Count;


        return 0;
}
 

But when I tried to compile it on Windows machine I allways get ERROR after every end of line printed by "push" function. I dont know if there is a problem with my Visual Studio 2013 configuration or Windows 8 safty stuff (I've got Windows firewall and antivirus off). Do You get the same error with this code?

Thanks in advance!

3

General / Re: Illegal instruction on Raspberry Pi

« on: July 07, 2014, 06:48:53 pm »

Yup, everything's fine now. Just had to add path to .so files while executing.

4

General / Re: Illegal instruction on Raspberry Pi

« on: July 06, 2014, 06:19:17 pm »

I replaced "./programname" with "export LD_LIBRARY_PATH=/usr/local/lib && ./programname" and it looks like it is working. I'll setup whole network and share with my resault.
I think that /usr/local/lib is the default directory. Am I wrong or is because of Raspbian?

5

General / Illegal instruction on Raspberry Pi

« on: July 06, 2014, 03:37:03 pm »

Hello,
I've got a problem with executing program compiled on my Raspberry Pi. It's for communication with my 3G controlled quadcopter. I compiled it on every linux at home end it worked. Compilation on Pi succeed too, when I CMade newest source form Laurent Gomila's git. I just had to put .so files path while building. When I try to execute it, there is only en error: "Illegal instruction". It only happends on Raspberry Pi. Is there a way to fix it other than resign form using SFML?

Used commands:
g++ -c programname.cpp
g++ programname.o -o programnamebuild -L /usr/local/lib/ -lsfml-network -lsfml-system
./programnamebuild  --- And then the error occurs

Here's my code:

#include <SFML/Network.hpp>
#include <iostream>

int roll = 0;
int rcthr = 0;
int pitch = 0;
int yaw = 0;
int high = 0;

int main()
{
sf::UdpSocket listener;


sf::IpAddress nadawca;
unsigned short port = 54321;
listener.bind(port);
sf::Packet paczka;

sf::SocketSelector sel;
sel.add( listener );

while (true) {

if( sel.wait(sf::seconds(1)) ) {


        if( sel.isReady( listener ) ) {
        sf::UdpSocket client;
        //j = lista.end();
        //lista[j+1] = client;
        //std::cout<<"Klient podlaczony\n";
        sel.add( client );
        }
        if (listener.receive( paczka, nadawca, port) == sf::Socket::Done)
                {
                //std::cout<< "Blad odbierania\n";
                //}

                int id;
                paczka>>id>>roll>>pitch>>rcthr>>yaw>>high;

                std::cout<<"Od: "<<nadawca<<" (ID:"<<id<<") ->\n";
                std::cout<<roll<<", "<<pitch<<", "<<rcthr<<", "<<yaw<<", "<<high<<"\n";

                }
       
       
    }

} // end while
return 0;
}