File content as of revision 0:39bc90f27661:

/**
@file main.h
@Header file contains code for displaying acceleration, defines and global variables.
@Revision 1.0
@Author Mario Quartey Papafio
@Date May 2015
*/


#include "mbed.h"
#include "N5110.h"
#include "MMA8452.h"
#include "PowerControl/PowerControl.h"
#include "PowerControl/EthernetPowerControl.h"

/**
//@to powerdown the usb
*/

char buffer[14]; // to store array character takes 6 pixels
char buffer1[14]; 
char buffer2[14]; 
char buffer3[14];


#define USR_POWERDOWN (0X104)
int semihost_powerdown()
{
    uint32_t arg;
    return __semihost (USR_POWERDOWN, &arg);
}

    
DigitalOut myled(LED1);
N5110 lcd(p7,p8,p9,p10,p11,p13,p26);
MMA8452 mma8452(p28,p27);  // SDA, SCL
Serial serial(USBTX,USBRX);

int multiplication (int length, int reg)
{
    int m;
    m=length*reg;
    return m;
}


int main() {
/**
@Powers Down Ethernet
@Powers Down USB interface

*/
PHY_PowerDown();
semihost_powerdown();
/**
@Initialises lcd and accelerometer
*/
   //  lcd.initSPI();
     lcd.init();
     lcd.printString("Hello World!", 0,0);
     lcd.refresh();
     wait(1);
     lcd.clear();
     mma8452.init();  // 100 Hz update rate, ±4g scale

  Acceleration acceleration;  // Accleration structure declared in MMA8452 class
    while (1) {
        lcd.printString("X Y Z Values", 0,0);
        acceleration = mma8452.readValues();   // read current values and print over serial port
         int xx = sprintf(buffer, "x = %.2f", acceleration.x); // figure eout the length of chars
         int yy =  sprintf(buffer1, "y = %.2f", acceleration.y);
         int zz = sprintf(buffer2, "z = %.2f", acceleration.z);
        serial.printf("x = %.2f g y = %.2f g z = %.2f g\n",acceleration.x,acceleration.y,acceleration.z);
        wait(0.1);   // short delay until next reading
        if (xx <= 14){  // if the length is smaller than 14 chars. it prints
            lcd.printString(buffer, 10, 1);
        if (yy <= 14){  // if the length is smaller than 14 chars. it prints
            lcd.printString(buffer1, 10, 2);
        if (zz <= 14){  // if the length is smaller than 14 chars. it prints
            lcd.printString(buffer2, 10, 3);
            
          float mag = sqrt((acceleration.x*acceleration.x + acceleration.y*acceleration.y + acceleration.z*acceleration.z));
          int ff = sprintf(buffer3, "Mag = %.2f", mag);
          if (mag <= 14){  // if the length is smaller than 14 chars. it prints
            lcd.printString(buffer3, 10, 4);
     }
            }
   } 
        }
        
        lcd.refresh();
    }
}