Output the voltage value of different AD buttons through AD sampling

#include       /* common defines and macros */

#include "derivative.h"      /* derivative-specific definitions */

#define SDA PTT_PTT1 //Data port 1

#define SCL PTT_PTT0 // Clock

#define DC  PTT_PTT3  

#define RST PTT_PTT2

/******************************/

void delay(uint a){

  uint b;

  for(a;a>0;a--)

    for(b=1000;b>0;b--);

}

void InitAD(void) {

  ATD0DIEN=0X00;

  ATD0CTL1=0X00;

  ATD0CTL2=0X40;

  ATD0CTL3=0X8C;

  ATD0CTL4=0X03;

  ATD0CTL5=0X20;

}

/***************************/

const byte tab_hanzi[][32]=              //Chinese character library

{

{0x10,0x80,0x10,0x40,0x10,0x40,0x13,0xFC,0xFC,0x00,0x10,0x00,0x31,0xF0,0x39,0x10},

{0x55,0x10,0x55,0x10,0x91,0x10,0x11,0x12,0x11,0x12,0x12,0x12,0x12,0x0E,0x14,0x00},/*"杭",0*/

{0x10,0x04,0x10,0x84,0x10,0x84,0x10,0x84,0x10,0x84,0x54,0xA4,0x52,0x94,0x52,0x94},

{0x90,0x84,0x10,0x84,0x10,0x84,0x10,0x84,0x20,0x84,0x20,0x84,0x40,0x04,0x80,0x04},/*"州",1*/

{0x01,0x00,0x01,0x00,0x01,0x00,0x3F,0xF8,0x21,0x08,0x21,0x08,0x21,0x08,0x3F,0xF8},

{0x21,0x08,0x21,0x08,0x21,0x08,0x3F,0xF8,0x21,0x0A,0x01,0x02,0x01,0x02,0x00,0xFE},/*"电",2*/

{0x00,0x00,0x7F,0xF8,0x00,0x10,0x00,0x20,0x00,0x40,0x01,0x80,0x01,0x00,0xFF,0xFE},

{0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x05,0x00,0x02,0x00},/*"子",3*/

{0x08,0x10,0x1D,0x10,0xF0,0x90,0x10,0x90,0x10,0x10,0xFD,0x10,0x10,0x90,0x38,0x90},

{0x34,0x10,0x50,0x1E,0x53,0xF0,0x90,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10},/*"科",4*/

{0x10,0x20,0x10,0x20,0x10,0x20,0x13,0xFE,0xFC,0x20,0x10,0x20,0x10,0x20,0x15,0xFC},

{0x18,0x84,0x30,0x88,0xD0,0x48,0x10,0x50,0x10,0x20,0x10,0x50,0x51,0x88,0x26,0x06},/*"技",5*/

{0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0xFF,0xFE,0x01,0x00,0x01,0x00},

{0x02,0x80,0x02,0x80,0x04,0x40,0x04,0x40,0x08,0x20,0x10,0x10,0x20,0x08,0xC0,0x06},/*"大",6*/

{0x22,0x08,0x11,0x08,0x11,0x10,0x00,0x20,0x7F,0xFE,0x40,0x02,0x80,0x04,0x1F,0xE0},

{0x00,0x40,0x01,0x80,0xFF,0xFE,0x01,0x00,0x01,0x00,0x01,0x00,0x05,0x00,0x02,0x00},/*"学",7*/

};

/*********************************/

const byte tab_num[][16]= //Digital font

{ 

{0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00},/*"0",0*/

{0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00},/*"1",1*/

{0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00},/*"2",2*/

{0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00},/*"3",3*/

{0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00},/*"4",4*/

{0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00},/*"5",5*/

{0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00},/*"6",6*/

{0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00},/*"7",7*/

{0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00},/*"8",8*/

{0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00},/*"9",9*/

};

/************************************/

const byte other_char[][16]=   

{

{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*" ",0*/

{0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00},/*"=",1*/

{0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00},/*"@",2*/

{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01},/*"-",3*/

{0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00},/*"<",4*/

{0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00},/*">",5*/

{0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00},/*"?",6*/

{0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00},/*"!",7*/

{0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00},/*"*",8*/

{0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00},/*"+",9*/

{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80},/*"_",10*/

{0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00},/*"/",11*/

{0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00},/*":",12*/

{0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00},/*"%",13*/

{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x06,0x00,0x00},/*".",14*/

};   

void wrdata(byte data){

  byte i=8;

  DC=1;

  SCL=0;

  while(i--){

    if(data&0x80)

      SDA=1;

    else

      SDA=0;

    SCL=1;

    _asm(nop);

    SCL=0;

    data<<=1;

  }

}

void wrcmd(byte cmd){

  byte i=8;

  DC=0;

  SCL=0;

  while(i--){

    if(cmd&0x80)

      SDA=1;

    else

      SDA=0;

    SCL=1;

    _asm(nop);

    SCL=0;

    cmd<<=1;

  }

}

/*void display_on(void)

{

    wrcmd(0X8D); //SET DCDC command

    wrcmd(0X14);  //DCDC ON

    wrcmd(0XAF);  //DISPLAY ON

}

void display_off(void)

{

    wrcmd(0X8D); //SET DCDC command

    wrcmd(0X10);  //DCDC OFF

    wrcmd(0XAE);  //DISPLAY OFF

} 

  */

void set_xy(byte x,byte y){

  wrcmd((y|0xb0));

  wrcmd((x&0x0f));

  wrcmd(((x&0xf0)>>4)|0x10);

}

void clear_oled(void)  

{  

   byte page,x;

   set_xy(0,0);

    for(page=0;page<9;page++)

    {

        for(x=0;x<128;x++){wrdata(0x00);}

        set_xy(0,page);

    } 

}

void init_oled(void){

  DDRT=0XFF;

  SCL=1;

  RST=0;

  _asm(nop);

  _asm(nop);

  RST=1;

  wrcmd(0xae);

  wrcmd(0xD5);

  wrcmd(0x80);

  wrcmd(0xA8);

  wrcmd(0x3f);

  wrcmd(0xd3);

  wrcmd(0x00);

  wrcmd(0x40);

  wrcmd(0x8d);

  wrcmd(0x14);

  wrcmd(0x20);

  wrcmd(0x02);

  wrcmd(0xa1);

  wrcmd(0xc8);

  wrcmd(0xea);

  wrcmd(0x12);

  wrcmd(0x81);

  wrcmd(0xef);

  wrcmd(0xd9);

  wrcmd(0xf1);

  wrcmd(0xdb);

  wrcmd(0x30);

  wrcmd(0xa4);

  wrcmd(0xa6);

  wrcmd(0xaf);

  clear_oled();

} 

void display_hanzi(byte x,byte y,byte w) {

    byte c;

    set_xy(x,y);

    for(c=0;c<16;c++)   {  wrdata(tab_hanzi[w][c]);  }

    set_xy(x,y+1);

    for(c=16;c<32;c++)  {  wrdata(tab_hanzi[w][c]);  }

}

void display_num(byte x,byte y,byte w) {

    byte c;

    set_xy(x,y);

    for(c=0;c<8;c++)   {  wrdata(tab_num[w][c]);  }

    set_xy(x,y+1);

    for(c=8;c<16;c++)  {  wrdata(tab_num[w][c]);  }

}

void display_other(byte x,byte y,byte w) {

    byte c;

    set_xy(x,y);

    for(c=0;c<8;c++)   {  wrdata(other_char[w][c]);  }

    set_xy(x,y+1);

    for(c=8;c<16;c++)  {  wrdata(other_char[w][c]);  }

}  

void main(void) {

  unsigned char v;

  uint t1,t2,t3,t;

  InitAD();

  init_oled();

//EnableInterrupts;

  for(;;) {

     while(!ATD0STAT2L_CCF0){

    ;}

    v=ATD0DR0L;

    t=v*100/255*5;

    t1=t/100;

    t2=(t-t1*100)/10;

    t3=t-t1*100-t2*10;

      display_num(16,0,t1);

      display_other(24,0,14);

      display_num(32,0,t2);

      display_num(40,0,t3);

    _FEED_COP(); /* feeds the dog */

  } 

}