initrandomgenerator.c

来自「传感器网络CC2430模块开发,IEEE802.15.4 MAC 协议实现源程序」· C语言 代码 · 共 59 行

/******************************************************************************
*                                                                             *
*        **********                                                           *
*       ************                                                          *
*      ***        ***                                                         *
*     ***    ++    ***                                                        *
*     ***   +  +   ***                      CHIPCON                           *
*     ***   +                                                                 *
*     ***   +  +   ***                                                        *
*     ***    ++    ***                                                        *
*      ***        ***                                                         *
*       ************                                                          *
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*******************************************************************************

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


//-----------------------------------------------------------------------------
// See hal.h for a description of this function.
//-----------------------------------------------------------------------------
void halInitRandomGenerator(void)
{
   BYTE i;

   // turning on power to analog part of radio
   RFPWR = 0x04;

   // waiting for voltage regulator.
   while( RFPWR & 0x10 );

   // Turning on 32 MHz crystal oscillator
   SET_MAIN_CLOCK_SOURCE(CRYSTAL);

   // Turning on receiver to get output from IF-ADC
   ISRXON;
   halWait(1);

   ENABLE_RANDOM_GENERATOR();

   for(i = 0 ; i < 32 ; i++)
   {
      RNDH = ADCTSTH;
      CLOCK_RANDOM_GENERATOR();
   }



   return;
}