#include <avr/io.h>
#include <avr/delay.h>
#include "TWI/TWI.h"
#include "LCD12864/LCD12864.h"
#include "KEY/KEY.h"

#define SETBIT(x,y)   (x|=(1<<y))      //set bit y in byte x 
#define CLRBIT(x,y)   (x&=(~(1<<y)))   //clear bit y in byte xx 
#define DDX_RET  { SETBIT(DDRD,PD7);CLRBIT(PORTD,PD7);}
#define DDX_OPER  { CLRBIT(DDRD,PD7);SETBIT(PORTD,PD7);}



/*--------------------主程序---------------------------------*/
int main()
{
    uint8 write_buff[7]={0x80,0x01,0x70,0x20,0x89,0x6d,0x66},read_buff;


    DDRB=0X00;
    PORTB=0XFF;
    init_lcd();
    twi_init();	//初始化cpu
    inform_disp();
    DDX_RET;
    _delay_ms(2);
    DDX_OPER;

 

	 while(wtDDX_nbyte(&write_buff[2],0x08,1));//no enable
     while(wtDDX_nbyte(&write_buff[1],0x09,1));//mute 


	 while(wtDDX_nbyte(&write_buff[3],0x0b,1));
	 while(wtDDX_nbyte(&write_buff[3],0x0c,1));
	 while(wtDDX_nbyte(&write_buff[3],0x0d,1));
	 while(wtDDX_nbyte(&write_buff[3],0x0e,1));
	 while(wtDDX_nbyte(&write_buff[3],0x0f,1));
	 while(wtDDX_nbyte(&write_buff[3],0x10,1));
	 while(wtDDX_nbyte(&write_buff[3],0x11,1));
	 while(wtDDX_nbyte(&write_buff[3],0x12,1));


     while(wtDDX_nbyte(&write_buff[4],0x00,1));//MLCK in

//	 while(wtDDX_nbyte(&write_buff[2],0x0a,1));//master volumen	
	  	 	
     while(wtDDX_nbyte(&write_buff[2],0x09,1));//no mute
	 while(wtDDX_nbyte(&write_buff[0],0x08,1));//enable



       uint8 sw_num,master_vol=120; 
      while(1)
	   {

	     sw_num=SW_turn();
	     if(sw_num!=100)
		 {
		   if(sw_num<100){master_vol+=1;if(master_vol>255)master_vol=255;}
		   if(sw_num>100){master_vol-=1;if(master_vol<1)master_vol=1;}         
             
           Disp_char(0,40,((256-master_vol)/100+48),1);
		   Disp_char(0,48,((256-master_vol)%100/10+48),1);
		   Disp_char(0,56,((256-master_vol)%10+48),1);
		   while(wtDDX_nbyte(&master_vol,0x0a,1));//master volumen
          }
	   } 

}