File content as of revision 30:5881c661b0bb:

/**** Vincent Labbé - labv2507  *****/
/**** Karan Kalsi - kalk2701  *****/
#include "mbed.h"    
#include "MMA8452Q.h"

Serial xbee_routeur(p13,p14);
Serial pc(USBTX, USBRX); // tx, rx
DigitalOut rst1(p8); //Digital reset for the XBee, 200ns for reset
MMA8452Q mma8452(p9,p10,0x1d);
DigitalIn btn(p15);

LocalFileSystem local("local");               // Create the local filesystem under the name "local"

uint16_t panId;  // panId
uint8_t panId_LSB;
uint8_t panId_MSB;

char*   url;    // url
char URL[10];

void seperatePanId(void);
void ReadFile (void);
void setPanId(void);
void sauvegarder(void);

int main() { 
 
    ReadFile();// when you run first time without this line, the setup file is on created
    
    wait(1);
    
    seperatePanId(); // séparé msb et lsb du panId
    
    pc.printf("panId lsb : %x\n\r",panId_LSB);
    pc.printf("panId msb : %x\n\r",panId_MSB);
    pc.printf("panId : %x\n\r",panId);
    pc.printf("url: %s\n\r",URL);
    
    setPanId();     // set panId to Xbee
    
    wait_ms(500);
    
    sauvegarder();
    
    while(1)
    {   
    
    if(xbee_routeur.readable())
    {
     pc.putc(xbee_routeur.getc());   
    }
    
    if(pc.readable())
    {
     xbee_routeur.putc(pc.getc());   
    }
    
    /*
        xbee_routeur.putc(0x7E);                     // start delimiter
        xbee_routeur.putc(0x00);                     // length 1/2
        xbee_routeur.putc(0x10);                     // legth 2/2
        xbee_routeur.putc(0x10);                     // Frame type
        xbee_routeur.putc(0x01);                     // Frame id
        xbee_routeur.putc(0x00);       // 64-bit adress (broadcast)  
        xbee_routeur.putc(0x00);       // 64-bit adress (broadcast) 
        xbee_routeur.putc(0x00);       // 64-bit adress (broadcast) 
        xbee_routeur.putc(0x00);       // 64-bit adress (broadcast) 
        xbee_routeur.putc(0x00);       // 64-bit adress (broadcast) 
        xbee_routeur.putc(0x00);       // 64-bit adress (broadcast) 
        xbee_routeur.putc(0x00);       // 64-bit adress (broadcast) 
        xbee_routeur.putc(0x00);       // 64-bit adress (broadcast)   
        xbee_routeur.putc(0xFF);                   // 16-bit adress (broadcast)
        xbee_routeur.putc(0xFE);                   // 16-bit adress (broadcast) 
        xbee_routeur.putc(0x00);                     // Broadcast radius
        xbee_routeur.putc(0x00);                     // options
        
        xbee_routeur.putc(0x23);
        xbee_routeur.putc(0x45);
 
        long sum = 0xFF - ((0x10 + 0x01 + 0xFF + 0xFF + 0xFE + 0x23 + 0x45 + 1) & 0xFF); // calcul du checksum
        xbee_routeur.printf("%x \n", sum);
        xbee_routeur.putc(sum);           // checksum
        
        wait(1);
        */
    }
    
}

void seperatePanId(void)
{
    panId_LSB = (panId & 0x00FF);
    panId_MSB = ((panId >> 8) & 0x00FF);
}

void ReadFile (void) 
{
    FILE *set = fopen("/local/config.txt", "r");  // Open "setup.txt" on the local file system for read
    fscanf(set,"%x",&panId); // read offset
    fscanf(set,"%s %f",URL,&url);   // read gain
    fclose(set);
}

void sauvegarder(void)
{
    xbee_routeur.putc(0x7E); // start delimiter
    xbee_routeur.putc(0x00); // MSB length
    xbee_routeur.putc(0x04); // LSB length
    xbee_routeur.putc(0x09); // AT COMMAND queue
    xbee_routeur.putc(0x41); // Frame Id
    xbee_routeur.putc(0x57); // 'W' Two ASCII characters that identify the AT Command (ID)
    xbee_routeur.putc(0x52); // 'R'
    
    uint8_t checksum = (0xFF - ((0x09 + 0x41 + 0x57 + 0x52) & 0xFF));
    pc.printf("checksum : %x\n\r",checksum);
    xbee_routeur.putc(checksum); // checksum
}


void setPanId(void)
{
    xbee_routeur.baud(9600); //set baud rate
    rst1 = 0;   // xbee reset
    wait_ms(400);
    rst1 = 1;
    
    xbee_routeur.putc(0x2B); // +
    xbee_routeur.putc(0x2B); // +
    xbee_routeur.putc(0x2B); // +
    xbee_routeur.putc(0x7E); // start delimiter
    xbee_routeur.putc(0x00); // MSB length
    xbee_routeur.putc(0x06); // LSB length
    xbee_routeur.putc(0x08); // AT command
    xbee_routeur.putc(0x01); // Frame Id
    xbee_routeur.putc(0x49); // 'I' Two ASCII characters that identify the AT Command (ID)
    xbee_routeur.putc(0x44); // 'D'
    xbee_routeur.putc(panId_MSB); // MSB du panId
    xbee_routeur.putc(panId_LSB); // LSB du panId
    
    uint8_t checksum = (0xFF - ((0x08 + 0x01 + 0x49 + 0x44 + panId_MSB + panId_LSB) & 0xFF));
    pc.printf("checksum : %x\n\r",checksum);
    xbee_routeur.putc(checksum); // checksum
}

// SPI COMMUNICATION
/*
int main() {

     float x, y, z ;
     MMA8452Q acc(p9,p10,0x1d);     // acceleration object
     
         cs = 0;    //Clear display SPI
         wait(0.1);
         spi.write(0x76); // Clear display
         cs = 1;
         wait(0.1);
         cs = 1;
         
     while (true) {       
         x = acc.getAccX() ; 
         y = acc.getAccY() ;
         z = acc.getAccZ() ;
         printf("X[%.3f] Y[%.3f] Z[%.3f]\n",x, y, z) ;
         wait(0.1);

        int X = x * 1000; //Pour enlever floating point et garder une précision
        int Y = y * 1000;
        int Z = z * 1000;

        int angle = (1000-(((2*X*X+2*Y*Y)*1000/(X*X+Y*Y+Z*Z)))); //Calcul vectoriel pour calculer l'angle à l'horizontal
        
        pc.printf("avant acos = %d", angle);
        
        float ratioZaccel = angle/1000.0; //Remettre en floating point pour acos
        int resultatRAD = 500*acos((ratioZaccel)); //Reponse en RAD
        
        pc.printf("valeur rad new= %d", resultatRAD);
        int degree = resultatRAD * 18000/31400; //Tranfo degree
        pc.printf("valeur deg new = %d", degree);
        pc.printf("valeur deg new = %d", degree);
        
        // extracting digits
        int digit;
        int digits[4] = {0,0,0,0};
        int i = 0;
        while(degree > 0) {
        digit = degree % 10; //to get the right most digit
        digits[i]=digit;
        pc.printf("digit %d = %d, degree int: %d", i, digits[i], degree);
        degree /= 10;              //reduce the number by one digit
        ++i;
        }
         
         spi.write(0x77); // Decimal control command    // Pour la communication SPI
         cs = 1;
         wait(0.01);
         cs = 0;
         spi.write(0x04);// Turn on decimal
         cs = 1;
         wait(0.01);
         cs = 0;
         spi.write(digits[3]);
         cs = 1;
         wait(0.01);
         cs = 0;
         spi.write(digits[2]);
         cs = 1;
         wait(0.01);
         cs = 0;
         spi.write(digits[1]);
         cs = 1;
         wait(0.01);
         cs = 0;
         spi.write(digits[0]);
         cs = 1; 
         */
         /*     Test
         cs = 0;
         wait(0.1);
         spi.write(0x5);
         cs = 1;
         */
    //    }
//} 



// UART COMMUNICATION
/*
void UARTInit()
{
 uint16_t usFdiv;   
    
 LPC_SC->PCONP       |=  (1 << 25);  // Power up the UART3 it's disabled on powerup.
  
 LPC_PINCON->PINSEL1 |= (3 << 18);   // Pin P0.25 used as TXD0 (Com0)     // Enable the pins on the device to use UART3 
 LPC_PINCON->PINSEL1 |= (3 << 20);   // Pin P0.26 used as RXD0 (Com0) 
    
 LPC_SC->PCLKSEL1    &= ~(3 << 18); // Clean all to 0    // Setup the PCLK for UART3
 LPC_SC->PCLKSEL1    |=  (1 << 18); // PCLK = CCLK

 LPC_UART3->LCR  =   0x83;  // 0000 0000 1000 0011       // Word select 8-bit character length and set DLAB

 usFdiv = (SystemCoreClock / (16*9600));    //Baud rate calculation
 LPC_UART3->DLM  =  usFdiv / 256;
 LPC_UART3->DLL  =   usFdiv % 256;

 LPC_UART3->FCR       = 0x7;     // Enable and reset UART3 FIFOs.

 LPC_UART3->LCR &= ~(1 << 7);    // Clear DLAB
}

char UART3Transmit(int out)
{
    LPC_UART3 -> THR = out;
    while(! (LPC_UART3->LSR & (0x01 << 0x06)));

    return 1;
}

int main() {
    
 UARTInit();

     float x, y, z ;
    
     MMA8452Q acc(p9,p10,0x1d);     // acceleration object
         
         UART3Transmit(0x76); // Clear display UART
     while (true) {  
          
         x = acc.getAccX() ; 
         y = acc.getAccY() ;
         z = acc.getAccZ() ;
         printf("X[%.3f] Y[%.3f] Z[%.3f]\n",x, y, z) ;
         wait(0.1);

        int X = x * 1000; //Pour enlever floating point et garder une précision
        int Y = y * 1000;
        int Z = z * 1000;

        int angle = (1000-(((2*X*X+2*Y*Y)*1000/(X*X+Y*Y+Z*Z)))); //Calcul vectoriel pour calculer l'angle à l'horizontal
        
        pc.printf("avant acos = %d", angle);
        
        float ratioZaccel = angle/1000.0; //Remettre en floating point pour acos
        int resultatRAD = 500*acos((ratioZaccel)); //Reponse en RAD
        
        pc.printf("valeur rad new= %d", resultatRAD);
        int degree = resultatRAD * 18000/31400; //Tranfo degree
        pc.printf("valeur deg new = %d", degree);
        
        pc.printf("valeur deg new = %d", degree);
        
        
        int digit;      // extracting digits
        int digits[4] = {0,0,0,0};
        int i = 0;
        while(degree > 0) {
        digit = degree % 10; //to get the right most digit
        digits[i]=digit;
        pc.printf("digit %d = %d, degree int: %d", i, digits[i], degree);
        degree /= 10;              //reduce the number by one digit
        ++i;
        }
         
         UART3Transmit(0x77); // Decimal control command    // Pour la communication UART
         UART3Transmit(0x04);// Turn on decimal
         
         UART3Transmit(digits[3]);
         UART3Transmit(digits[2]);
         UART3Transmit(digits[1]);
         UART3Transmit(digits[0]);      //UART3Transmit(0xA5);
        }
} 
*/        


/* // communication I2C 
Serial pc(USBTX, USBRX); // tx, rx
I2C i2c(p9,p10);   

int main() {
    i2c.frequency(100000);
    char cmd[2] = {0,0};
    int addr = 0x5A;
    int data = 0xA4;
    cmd[0] = addr;
    cmd[1] = data;
    
while(1){
    i2c.write(0x3A,cmd,2);
    wait_ms(5);
    }
}
 */
// I2C write
//i2c.frequency(100000);
//int cmd[0] = 0x0D;
//12c.write(addr,cmd,1,true);
//i2c.read(addr,cmd,1);

 /* // communication UART
Serial pc(USBTX, USBRX); // tx, rx
Serial mc(p9,p10);
int main() {
    
    int nombre;
    pc.printf("Entrez un nombre de 4 chiffres : ");
    pc.scanf("%d", &nombre);
    pc.printf("Votre numero entrez est le : %d", nombre);
    //mc.printf(nombre);
    mc.putc(nombre);
}
 */

/*
DigitalOut myled(LED3);

int main() {
    while(1) {
        myled = 1;
        wait(0.2);
        myled = 0;
        wait(0.2);
    }
}
*/

// I2C write
/*
I2C    i2c( p28, p26 );        // sda, scl
 
int main() {
    char    data[3];
 
    data[0]   = 0x16;
    data[1]   = 0x55;
    data[2]   = 0x55;
 
    i2c.write( 0xC0, data, 3 ); //0xC0 is slave adress 
}*/

// I2C Read
/*
short read_sensor_lower_8bit( void )
{
    char    v;
    char    cmd;
 
    cmd    = 0x05;
 
    i2c.write( 0x88, &cmd, 1 );
    i2c.read( 0x88, &v, 1 );
 
    return( v );
}
*/

/*
int main() {
    set_time(1256729737);  // Set RTC time to Wed, 28 Oct 2009 11:35:37
}*/

/*
int main() {
    while(1) {
        time_t seconds = time(NULL);

        printf("Time as seconds since January 1, 1970 = %d\n", seconds);

        printf("Time as a basic string = %s", ctime(&seconds));

        char buffer[32];
        strftime(buffer, 32, "%I:%M %p\n", localtime(&seconds));
        printf("Time as a custom formatted string = %s", buffer);

        wait(1);
    }
}*/
/*
int main() {

    // get the current time from the terminal
    struct tm t;
    printf("Enter current date and time:\n");
    printf("YYYY MM DD HH MM SS[enter]\n");    
    scanf("%d %d %d %d %d %d", &t.tm_year, &t.tm_mon, &t.tm_mday
                             , &t.tm_hour, &t.tm_min, &t.tm_sec);

    // adjust for tm structure required values
    t.tm_year = t.tm_year - 1900;
    t.tm_mon = t.tm_mon - 1;
    
    // set the time
    set_time(mktime(&t));
        
    // display the time
    while(1) {    
        time_t seconds = time(NULL);
        printf("Time as a basic string = %s", ctime(&seconds));
        wait(1);
    }
}*/