#include "LPC214x.h"
#include "timer.h"
#include "ADC7.h"
#include "uart0.h"
#include <stdio.h>

int i;
unsigned int val;
unsigned int tick;
const static unsigned short table_sine[64] =                // Sine Function Table(12Bit)
          {
            0x07FF, 0x08C8, 0x098E, 0x0A51,
            0x0B0F, 0x0BC4, 0x0C71, 0x0D12,
            0x0DA7, 0x0E2E, 0x0EA5, 0x0F0D,
            0x0F63, 0x0FA6, 0x0FD7, 0x0FF5,
            0x0FFF, 0x0FF5, 0x0FD7, 0x0FA6,
            0x0F63, 0x0F0D, 0x0EA5, 0x0E2E,
            0x0DA7, 0x0D12, 0x0C71, 0x0BC4,
            0x0B0F, 0x0A51, 0x098E, 0x08C8,
            0x07FF, 0x0736, 0x0670, 0x05AD,
            0x04EF, 0x043A, 0x038D, 0x02EC,
            0x0257, 0x01D0, 0x0159, 0x00F1,
            0x009B, 0x0058, 0x0027, 0x0009,
            0x0000, 0x0009, 0x0027, 0x0058,
            0x009B, 0x00F1, 0x0159, 0x01D0,
            0x0257, 0x02EC, 0x038D, 0x043A,
            0x04EF, 0x05AD, 0x0670, 0x0736
          };

/*******************************************************/
//unsigned int min, sec, tick;
//extern unsigned int tick;
/*******************************************************/
 void TimerInit(void)
{
    VPBDIV      = 1;            // Configure the  VPB divi
    T0PR        = 60;           //Load prescaler
    T0TCR       = 2;            //Reset counter and prescaler
    T0MR0       = (15-1);
    T0MCR       = 3;            //On match reset the counter and generate an interrupt
    T0TCR       = 1;

    VICVectAddr4 = (unsigned)T0isr;     //Set the timer ISR vector address
    VICVectCntl4 = (0x20 | 4);          //Set channel
    VICIntEnable |= (1 << 4);           //Enable the interrupt

    PINSEL1 &= 0xFFF3FFFF;                                  // Select DAC Pin Connect P0.25
    PINSEL1 |= 0x00080000;
}
/*****************************************************/
void T0isr (void)   __irq
{
    DACR = ((table_sine[i]/4) << 6);
    i++;
    i &= 0x3F;
    tick++;
    T0IR = 1;
    VICVectAddr = 0;
}

/*****************************************************/
void TimerOn(void){}
void TimerOff(void){}


void main(void){
    uart_init();
    TimerInit();
    AD7Init();
    printf("Hello\n");
    while(1)
    {
    //printf("val_main = %d tick = %d\n",val,tick);
    printf("val_main  tick = %d\n",tick);

    }

}