Ejemplo n.º 1
0
int main(void)
{
  unsigned char i;
  unsigned char ChkSum;
  //POWER ON indication: LED blink 3 times
  LED2_OUTPUT();
  LED2_OFF();
  MODULE_OFF(); //for reset
  for(i=0;i<3;i++){
    Delay_ms(200);
    LED2_ON();
    Delay_ms(200);
    LED2_OFF();
  }
  LED2_OFF();
  MODULE_ON(); //for reset
  Delay_ms(200);

  //Initialize command port
  RFXX_PORT_INIT();
  //Initialize RF12 chip
  RF12_INIT();
  //Init FIFO
  RFXX_WRT_CMD(0xCA81);
  while(1){
    //Enable FIFO
    RFXX_WRT_CMD(0xCA83);
    ChkSum=0;
    //Receive payload data
    for(i=0;i<16;i++){
      ChkSum+=RF12_RECV();
    }
    //Receive Check sum
    i=RF12_RECV();
    //Disable FIFO
    RFXX_WRT_CMD(0xCA81);
    //Package chkeck
    if(ChkSum==i){
      LED2_ON();
      Delay_ms(200);
      LED2_OFF();
    }
  }
}
Ejemplo n.º 2
0
int main(void) {
	uint8_t i;
	uint8_t ChkSum;

	cli();
	//#asm("cli");

	DDRB = 0x00; //PB INPUT;
	DDRD = 0x00; //PD INPUT;

	//POWER ON indication: both LEDR and LEDG blink 3 times
	LEDG_OFF();
	LEDR_OFF();
	LEDG_OUTPUT();
	LEDR_OUTPUT();

	for (i=0; i<3; i++) {
		_delay_ms(200);
		//Delay_ms(200);
		LEDG_ON();
		LEDR_ON();
		_delay_ms(200);
		//Delay_ms(200);
		LEDG_OFF();
		LEDR_OFF();
	}
	LEDG_OFF();
	LEDR_OFF();
	RFXX_PORT_INIT();
	RF12_INIT();

	DDRD  |=  (1 << RF12_DATA); 
	PORTD |=  (1 << RF12_DATA); // SET nFFS pin HI when using TX register
	DDRD  &= ~(1 << DDD2);      // PD2(INT0)

	while (1) {

		LEDR_ON();

		rfxx_wrt_cmd(0x0000); //read status register
		rfxx_wrt_cmd(0x8239); //!er,!ebb,ET,ES,EX,!eb,!ew,DC
		ChkSum=0;

		rf12_send(0xAA); //PREAMBLE
		rf12_send(0xAA); //PREAMBLE
		rf12_send(0xAA); //PREAMBLE

		rf12_send(0x2D); //SYNC HI BYTE
		rf12_send(0xD4); //SYNC LOW BYTE

		// send data bytes
		for (i = 0x30; i<=0x3F; ++i) {
			rf12_send(i);
			ChkSum += i;
		}

		/*
			 rf12_send(0x30); //DATA BYTE 0
			 ChkSum+=0x30;
			 rf12_send(0x31); //DATA BYTE 1
			 ChkSum+=0x31;
			 rf12_send(0x32);
			 ChkSum+=0x32;
			 rf12_send(0x33);
			 ChkSum+=0x33;
			 rf12_send(0x34);
			 ChkSum+=0x34;
			 rf12_send(0x35);
			 ChkSum+=0x35;
			 rf12_send(0x36);
			 ChkSum+=0x36;
			 rf12_send(0x37);
			 ChkSum+=0x37;
			 rf12_send(0x38);
			 ChkSum+=0x38;
			 rf12_send(0x39);
			 ChkSum+=0x39;
			 rf12_send(0x3A);
			 ChkSum+=0x3A;
			 rf12_send(0x3B);
			 ChkSum+=0x3B;
			 rf12_send(0x3C);
			 ChkSum+=0x3C;
			 rf12_send(0x3D);
			 ChkSum+=0x3D;
			 rf12_send(0x3E);
			 ChkSum+=0x3E;
			 rf12_send(0x3F);    //DATA BYTE 15
			 ChkSum+=0x3F;
			 */

		rf12_send(ChkSum); //send chek sum

		rf12_send(0xAA); //DUMMY BYTE
		rf12_send(0xAA); //DUMMY BYTE
		rf12_send(0xAA); //DUMMY BYTE

		rfxx_wrt_cmd(0x8201);
		LEDR_OFF();
		LEDG_OFF();

		//for(i=0;i<10000;i++)
		//  for(j=0;j<123;j++); //sleep 1 second appr.
		_delay_ms(1000);
	}
}