init_m8.i

CC1000的应用与MEGA8,无线双工通信.

void init_m8(void)
{
  
// Input/Output Ports initialization
// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
PORTB=0x07;
DDRB=0x81;

// Port C initialization
// Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
// State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
PORTC=0x00;
DDRC=0x00;

// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
PORTD=0xC0;
DDRD=0xE0;

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: 0.977 kHz
TCCR0=0x05;
TCNT0=0x00;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: 0.977 kHz
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: On
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
 TCCR1B = 0x00; //stop
 TCNT1H = 0xFE; //setup
 TCNT1L = 0x18;
 OCR1AH = 0x01;
 OCR1AL = 0xE8;
 OCR1BH = 0x01;
 OCR1BL = 0xE8;
 ICR1H  = 0x01;
 ICR1L  = 0xE8;
 TCCR1A = 0x00;
 TCCR1B = 0x05; //start Timer

// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer 2 Stopped
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;

// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
MCUCR=0x00;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x05;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;

// Global enable interrupts
#asm("sei")
 if(InitialCC1000())
        bell(2); 
}   
void bell(unsigned char abc)
{ 
 for( ;abc>0;abc--)
      {                                 
          DDRD |=0x08;
          PORTD.3 = 1; 
          delay_ms(200);
          PORTD.3 =0;
          delay_ms(150);         
      }
 }         
 void Registrion(void)
 {
   DDRD &=0xFC;
   get_long_key = PIND&0x03;
   temp_key=get_long_key;
   temp_long_key=(old_long_key<<4);
   get_long_key = get_long_key+temp_long_key;
   switch(get_long_key)
        {
           case 0x33: break;
	case 0x30:
	case 0x31:
	case 0x32: old_long_key=temp_key;	
		break;
	case 0x03:
	case 0x13:
	case 0x23:  
		break;
	case 0x00: 
	case 0x11:
           case 0x22: long_counter++;
	           break;			  	  	  	
	default :  long_counter=0;
	           old_long_key=temp_key;
	           break;
        } 
        if(long_counter==2)lock_key=1;
        if(long_counter==8)
           {
             old_long_key=0x03;
             long_counter = 0;
             Registration_table[4]=temp_key;
             Self_ID[0]=temp_key;
             Registration_table[5]=Self_ID[1];
             Registration_table[6]=Self_ID[2];
             Registration_table[7]=Self_ID[3];
             Registration_Return_table[0]=Self_ID[0];
             Registration_Return_table[1]=Self_ID[1];
             Registration_Return_table[2]=Self_ID[2];
             Registration_Return_table[3]=Self_ID[3];
             key_flag = SendOnePacketToCC1000(&Registration_table[0]);
             lock_key=0;
           } 
 }