RFM12 fehlersuche

include "pic.h"

typedef unsigned char uchar;

typedef unsigned int uint;

#define _XTAL_FREQ 8000000

#define RF_PORT  GPIO

#define RF_DDR  TRISIO

#define RF_PIN  GPIO

#define SDI    0

#define SDO    1

#define SCK    2

#define TASTER  3      //GP3 INPUT ONLY!!!

#define CS    4

#define LED    5

#define cbi(PORT, BIT)     (PORT &= ~(1<<BIT)) 

#define sbi(PORT, BIT)     (PORT |= (1<<BIT)) 

#define RF12FREQ(freq)  ((freq-430.0)/0.0025)  // macro for calculating frequency value out of frequency in MHz

void InitApplication(void);

void rf12_init(void);

unsigned short rf12_trans(unsigned short wert);

void rf12_setbandwidth(unsigned char bandwidth, unsigned char gain, unsigned char drssi);

void rf12_setfreq(unsigned short freq);

void rf12_setbaud(unsigned short baud);

void rf12_setpower(unsigned char power, unsigned char mod);

void rf12_ready(void);

void rf12_txdata(unsigned char *data, unsigned char number);

void rf12_rxdata(unsigned char *data, unsigned char number);

void send(void);

__CONFIG(0x3FF4);

unsigned short state = 1;

void main()

{

  for (unsigned char i=0; i<200; i++)

    __delay_ms(10);      //2s

  InitApplication();

  while(1)

  {

  switch(state)

  {

  case 1:

      sbi(RF_PORT, LED);

      for (unsigned char i=0; i<50; i++)

        __delay_ms(10);       //500ms

      state = 2; 

      break;

  case 2: //init 

      rf12_init();          // ein paar Register setzen (z.B. CLK auf 10MHz)

      rf12_setfreq(RF12FREQ(433.92));  // Sende/Empfangsfrequenz auf 433,92MHz einstellen

      rf12_setbandwidth(4, 1, 4);    // 200kHz Bandbreite, -6dB Verstärkung, DRSSI threshold: -79dBm 

      rf12_setbaud(19200);      // 19200 baud

      rf12_setpower(0, 6);      // 1mW Ausgangangsleistung, 120kHz Frequenzshift

      state = 3;

      break;

  case 3:

      cbi(RF_PORT, LED);

      for (unsigned char i=0; i<50; i++)

        __delay_ms(10);      //500ms

      send();

      state = 4;

      break;

  case 4:

      sbi(RF_PORT, LED);

      for (unsigned char i=0; i<50; i++)

        __delay_ms(10);      //500ms

      state = 3;

      break;

  }

  }

}

void interrupt interrupt_Handler(void)

{

}

void InitApplication(void)

{

  OSCCON   = 0x75;   // 8 MHz internal Clock

  CM0    = 1;    //111 = CIN pins are configured as I/O, COUT pin   

  CM1    = 1;    //is configured as I/O, Comparator output disabled, Comparator off.  

  CM2    = 1;

  ANS0   = 0;        // all I/Os are digital

  ANS1   = 0;

  ANS2   = 0;

  ANS3   = 0;

  TRISIO   &= ~(1<<SDI); 

  TRISIO   &= ~(1<<SCK); 

  TRISIO   &= ~(1<<CS); 

  TRISIO   &= ~(1<<LED); 

}

unsigned short rf12_trans(unsigned short wert)

{  unsigned short werti=0;

  unsigned char i;

  cbi(RF_PORT, CS);

  for (i=0; i<16; i++)

  {  if (wert&32768)

    {

      sbi(RF_PORT, SDI);

    }

    else

    {

      cbi(RF_PORT, SDI);

    }

    werti<<=1;

    if (RF_PIN&(1<<SDO))

      werti|=1;

    __delay_us(100); //CHANGED

    sbi(RF_PORT, SCK);

    wert<<=1;

    //__delay_us(5);

    __delay_us(100); //CHANGED

    cbi(RF_PORT, SCK);

  }

  __delay_us(5);

  sbi(RF_PORT, CS);

  return werti;

}

void rf12_init(void)

{

  //RF_DDR=(1<<SDI)|(1<<SCK)|(1<<CS);

  RF_PORT=(1<<CS)|(1<<LED);

  for (unsigned char i=0; i<10; i++)

    __delay_ms(10);      // wait until POR done

  rf12_trans(0xC0E0);      // AVR CLK: 10MHz

  rf12_trans(0x80D7);      // Enable FIFO

  rf12_trans(0xC2AB);      // Data Filter: internal

  rf12_trans(0xCA81);      // Set FIFO mode

  rf12_trans(0xE000);      // disable wakeuptimer

  rf12_trans(0xC800);      // disable low duty cycle

  rf12_trans(0xC4F7);      // AFC settings: autotuning: -10kHz...+7,5kHz

}

void rf12_setbandwidth(unsigned char bandwidth, unsigned char gain, unsigned char drssi)

{

  rf12_trans(0x9400|((bandwidth&7)<<5)|((gain&3)<<3)|(drssi&7));

}

void rf12_setfreq(unsigned short freq)

{  if (freq<96)        // 430,2400MHz

    freq=96;

  else if (freq>3903)      // 439,7575MHz

    freq=3903;

  rf12_trans(0xA000|freq);

}

void rf12_setbaud(unsigned short baud)

{

  if (baud<663)

    return;

  if (baud<5400)          // Baudrate= 344827,58621/(R+1)/(1+CS*7)

    rf12_trans(0xC680|((43104/baud)-1));

  else

    rf12_trans(0xC600|((344828UL/baud)-1));

}

void rf12_setpower(unsigned char power, unsigned char mod)

{  

  rf12_trans(0x9800|(power&7)|((mod&15)<<4));

}

void rf12_ready(void)

{  cbi(RF_PORT, CS);

  while (!(RF_PIN&(1<<SDO))); // wait until FIFO ready

}

void rf12_txdata(unsigned char *data, unsigned char number)

{  unsigned char i;

  rf12_trans(0x8238);      // TX on

  rf12_ready();

  rf12_trans(0xB8AA);

  rf12_ready();

  rf12_trans(0xB8AA);

  rf12_ready();

  rf12_trans(0xB8AA);

  rf12_ready();

  rf12_trans(0xB82D);

  rf12_ready();

  rf12_trans(0xB8D4);

  for (i=0; i<number; i++)

  {    rf12_ready();

    rf12_trans(0xB800|(*data++));

  }

  rf12_ready();

  rf12_trans(0x8208);      // TX off

}

void rf12_rxdata(unsigned char *data, unsigned char number)

{  unsigned char i;

  rf12_trans(0x82C8);      // RX on

  rf12_trans(0xCA81);      // set FIFO mode

  rf12_trans(0xCA83);      // enable FIFO

  for (i=0; i<number; i++)

  {  rf12_ready();

    *data++=rf12_trans(0xB000);

  }

  rf12_trans(0x8208);      // RX off

}

void send(void)

{  unsigned char test[]="TEST";  

  rf12_txdata(test,4);

}

void rf12_rxdata(unsigned char *data, unsigned char number)

{  unsigned char i;

  rf12_trans(0x82C8);      // RX on

  rf12_trans(0xCA81);      // set FIFO mode

  rf12_trans(0xCA83);      // enable FIFO

  for (i=0; i<number; i++)

  {  rf12_ready();

    *data++=rf12_trans(0xB000);

  }

  rf12_trans(0x8208);      // RX off

}

unsigned int receive(void)

{  unsigned char test[4];  

  rf12_rxdata(test,4);  

  // daten verarbeiten

  sprintf(buf, "DATA RECEIVED: %i%i%i%i\n",test[0],test[1],test[2],test[3]);

    SendDataBuffer(buf, strlen(buf));

}

__delay_us(100); //CHANGED