#include "LPC214x.H"                                        // LPC2148 MPU Register
#include <stdio.h>                                          // For Used Function printf
#include "adc7.h"

void AD7Init(void)
{
      PINSEL0 &= 0xFFFFF3FF;                                    // Select ADC7 Pin Connect P0.5
      PINSEL0 |= 0x00000C00;

      AD0INTEN=(0x100)|(7<<1);
      AD0CR &= 0x00000000;                                      // Clear All Bit Control
      AD0CR |= 0x00000080;                                      // Select ADC = AIN7
      AD0CR |= 0x00000600;                                      // ADC Clock = VBP(PCLK) / 7
      AD0CR |= 0x00010000;                                      // Busrt = 1 = Conversion Continue
      AD0CR &= 0xFFF1FFFF;                                      // CLKS = 000 = 10Bit : 11 Cycle Clock Conversion
      AD0CR |= 0x00200000;                                      // PDN = 1 = Active ADC Module
      AD0CR &= 0xFF3FFFFF;                                      // TEST[1:0] = 00 = Normal Mode
      AD0CR &= 0xF7FFFFFF;                                      // EDGE = 0 = Conversion on Falling Edge
      AD0CR |= 0x01000000;                                      // START = 001 = Start Conversion Now

        VICVectAddr4 = (unsigned)AD0isr;    //  //Set the timer ISR vector address
        VICVectCntl4 = (0x20 | 18);     //  //Set channel
        VICIntEnable |= (1 << 18);      //  //Enable the interrupt
}

 void AD0isr (void) __irq
{
    val = (AD0DR7>>6) & 0x3E8; // (AD0DR6>>6) & 0x3ff;
    val = (val + 50)/5;
    VICVectAddr = 0;
}