File content as of revision 4:393738672d08:

#include "EthernetInterface.h"
#include "ConfigFile.h"
#include "mbed.h"

DigitalOut reset(p8);
Serial xbee(p13, p14);  // tx, rx
Serial pc(USBTX, USBRX); // tx, rx

// Socket Buffer
uint16_t portNo = 0;
char serverAddrvalue[32];
char portNbValue[4];
bool boolLED = false; 

uint16_t getFrameSize(uint8_t value1, uint8_t value2) {
    union {
        uint16_t u16_value;
        uint8_t  u8_value[2];
    } length;

    length.u8_value[1] = value1;
    length.u8_value[0] = value2;

    return length.u16_value;
}

void toogleLED() {
    // Addresse 64 bits = 00 13 A2 00 40 8B 41 6E
    //uint8_t high[20] = {0x7E, 0x00, 0x10, 0x17, 0x00, 0x00, 0x13, 0xA2, 0x00, 0x40, 0x8B, 0x41, 0x6E, 0xFF, 0xFE, 0x02, 0x44, 0x34, 0x05, 0x3D};
    //uint8_t low[20]  = {0x7E, 0x00, 0x10, 0x17, 0x00, 0x00, 0x13, 0xA2, 0x00, 0x40, 0x8B, 0x41, 0x6E, 0xFF, 0xFE, 0x02, 0x44, 0x34, 0x04, 0x3E};
    uint8_t high[20] = {0x7E, 0x00, 0x10, 0x17, 0x01, 0x00, 0x13, 0xA2, 0x00, 0x40, 0x8B, 0x41, 0x6E, 0xFF, 0xFE, 0x02, 0x44, 0x34, 0x05, 0x3C};
    uint8_t low[20]  = {0x7E, 0x00, 0x10, 0x17, 0x02, 0x00, 0x13, 0xA2, 0x00, 0x40, 0x8B, 0x41, 0x6E, 0xFF, 0xFE, 0x02, 0x44, 0x34, 0x04, 0x3C};

    for (int i = 0; i < 20;) {
        if (xbee.writeable()) {
            if (boolLED) {
                xbee.putc(high[i]);
            } else {
                xbee.putc(low[i]);
            }
            i++; 
        }   
    }
    
    if (boolLED) {
        pc.printf("Et un haut!\n");
    } else {
         pc.printf("Et un bas!\n");
    }
    boolLED = !boolLED;
}

void readConfigFile() {
    LocalFileSystem local("local");
    ConfigFile cfg;
    char *serverAddr = "serverAddr";
    char *tempPortNo = "portNb";
    
    if (!cfg.read("/local/input.cfg")) {
        error("Erreur dans la lecture du fichier\n");
    } else {
        cfg.getValue(serverAddr, &serverAddrvalue[0], sizeof(serverAddrvalue));
        cfg.getValue(tempPortNo, &portNbValue[0], sizeof(portNbValue));
        portNo = (uint16_t)strtol(portNbValue, NULL, 10);
    }
}

void initSocket() {
    //int repSize;
    //while (true) {

        //sprintf (buffer, (const char *)xbee.getc());
        //sock.send_all(buffer, sizeof(buffer)-1);
    
        //repSize = sock.receive(buffer, sizeof(buffer)-1);
       // if (repSize <= 0) {
       //     printf("Error");
       //     sock.close();
       //     break;
     //   }
        //buffer[repSize] = '\0';
        //printf("Received %d chars from server:\n%s\n", repSize, buffer);
    //}
}

void checkForError(uint8_t* buffer) {
    if (buffer[0] == 0x97) {
        if (buffer[1] == 0x02) {
            pc.printf("Erreur dans la remote AT command pour mettre la DEL a l'etat bas.\n");
        }
        else if (buffer[1] == 0x01) {
            pc.printf("Erreur dans la remote AT command pour mettre la DEL a l'etat haut\n");
        }
    }
}

void verifyChecksum(uint16_t frameSize, uint8_t* buffer) {
    uint32_t checkSum = 0;
    
    for (int i = 0; i < frameSize; i++) {
        checkSum += buffer[i];
    }    
    if ((0xFF - (checkSum & 0xFF)) != buffer[frameSize]) {
        pc.printf("Erreur dans le checksum. \n");
    }
        
    checkForError(buffer);
}

void readFrame(){
    uint8_t temp[2] = { 0 };
    uint8_t buffer[104] = { 0 };
    
    if (xbee.readable() && xbee.getc() == 0x7E) {
        for (int i = 0; i < 2;) {
            if (xbee.readable()) {
                temp[i] = xbee.getc();
                i++;
            }
        }
        uint16_t frameSize = getFrameSize(temp[0], temp[1]);
        pc.printf("La grandeur de la frame: %d\n", frameSize); 
         
        // Je lis le restant de la trame et la met dans un buffer
        for (int j = 0; j <= frameSize;) {
            if (xbee.readable()) {
                buffer[j] = xbee.getc();
                j++;
            }
        }
        
        verifyChecksum(frameSize, buffer);
        pc.printf("Frame: %s\n", buffer);
    }
}

int main() {
    EthernetInterface eth;
    TCPSocketConnection sock;
    
    reset = 0;
    wait(0.4);
    reset = 1;
    
    readConfigFile();
    
    if (eth.init() != 0) { // Use DHCP
        pc.printf("Erreur d'initialisation du RJ45.\n");
    }
    if (eth.connect() != 0) {
        pc.printf("Erreur de connection du RJ45\n"); 
    }
    if (sock.connect(serverAddrvalue, portNo) != 0) {
        pc.printf("Erreur de socket.\n");
    }

    //sock.send_all(buffer, sizeof(buffer)-1);
    
    //initSocket();
    
    //Set ticker to blink LED at each 1 sec
    //Ticker blinkLED;
   // blinkLED.attach(&toogleLED, 1);
    
    pc.printf("Pret a recevoir des trames... \n");
    while(1) {
        readFrame();
        //wait_ms(1000);
        //toogleLED();
    }
}