rfconfig.c

传感器网络CC2430模块开发,IEEE802.15.4 MAC 协议实现源程序.

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Filename:     rfConfig.c
Target:       cc2430
Author:       EFU
Revised:      1/3-2007
Revision:     1.1
******************************************************************************/
#include "hal.h"

//-----------------------------------------------------------------------------
// See hal.h for a description of this function.
//-----------------------------------------------------------------------------
BOOL halRfConfig(UINT32 frequency)
{
   BOOL status;

   //Turning on crystal oscillator
   SET_MAIN_CLOCK_SOURCE(CRYSTAL);

   // Setting the frequency
   halRfSetRadioFrequency(frequency);

   // Checking that the entered frequency is valid
   if (frequency > 2047000)
   {

     // turning on power to analog part of radio and waiting for voltage regulator.
     RFPWR = 0x04;
     while( RFPWR & 0x10 );

     // Turning off Address Decoding
     MDMCTRL0H &= ~ADR_DECODE;

     // Setting for AUTO CRC
     MDMCTRL0L |= AUTO_CRC;

     // Turning on AUTO_TX2RX
     FSMTC1 = ((FSMTC1 & (~AUTO_TX2RX_OFF & ~RX2RX_TIME_OFF))  | ACCEPT_ACKPKT);

     // Turning off abortRxOnSrxon.
     FSMTC1 &= ~0x20;



     status = TRUE;
   }
   else {
      status = FALSE;
   }

   return status;
}


//-----------------------------------------------------------------------------
// See hal.h for a description of this function.
//-----------------------------------------------------------------------------
void halRfSetRadioFrequency(UINT32 frequency)
{
   frequency /= (UINT32)1000;
   frequency -= (UINT32)2048;

   FSCTRLL = LOBYTE(frequency);
   FSCTRLH &= ~0x03;
   FSCTRLH |= (HIBYTE(frequency) & 0x03);
   return;
}