cpu.c

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/** ###################################################################
**     THIS BEAN MODULE IS GENERATED BY THE TOOL. DO NOT MODIFY IT.
**     Filename  : Cpu.C
**     Project   : ETH_TEST_3
**     Processor : MC9S12NE64CPV
**     Beantype  : MC9S12NE64_112
**     Version   : Bean 01.000, Driver 01.12, CPU db: 2.87.027
**     Datasheet : 9S12NE-FamilyDGV1/D V01.04
**     Compiler  : Metrowerks HC12 C Compiler
**     Date/Time : 23.02. 2004, 14:47
**     Abstract  :
**         This bean "MC9S12NE64_112" implements properties, methods,
**         and events of the CPU.
**     Settings  :
**
**     Contents  :
**         EnableInt   - void Cpu_EnableInt(void);
**         DisableInt  - void Cpu_DisableInt(void);
**         SetWaitMode - void Cpu_SetWaitMode(void);
**         SetStopMode - void Cpu_SetStopMode(void);
**
**     (c) Copyright UNIS, spol. s r.o. 1997-2004
**     UNIS, spol. s r.o.
**     Jundrovska 33
**     624 00 Brno
**     Czech Republic
**     http      : www.processorexpert.com
**     mail      : [e-mail]
** ###################################################################*/

/* MODULE Cpu. */

#include "IV1.h"
#include "IV2.h"
#include "IV3.h"
#include "IV4.h"
#include "IV5.h"
#include "IV6.h"
#include "IV7.h"
#include "IV8.h"
#include "IV9.h"
#include "IV10.h"
#include "IV11.h"
#include "IV12.h"
#include "PE_Types.h"
#include "PE_Error.h"
#include "PE_Const.h"
#include "IO_Map.h"
#include "Events.h"
#include "Cpu.h"

#define CGM_DELAY  3071UL


/* Global variables */
volatile byte CCR_reg;                 /* Current CCR reegister */
byte CpuMode = HIGH_SPEED;             /* Current speed mode */


/*
** ===================================================================
**     Method      :  Cpu_Interrupt (bean MC9S12NE64_112)
**
**     Description :
**         This method is internal. It is used by Processor Expert
**         only.
** ===================================================================
*/
#pragma CODE_SEG __NEAR_SEG NON_BANKED /* Interrupt section for this module. Placement will be in NON_BANKED area. */

__interrupt void Cpu_Interrupt(void)
{
}

#pragma CODE_SEG DEFAULT               /* Change code section to DEFAULT. */

/*
** ===================================================================
**     Method      :  Cpu_DisableInt (bean MC9S12NE64_112)
**
**     Description :
**         Disable maskable interrupts
**     Parameters  : None
**     Returns     : Nothing
** ===================================================================
*/
/*
void Cpu_DisableInt(void)

**      This method is implemented as macro in the header module. **
*/

/*
** ===================================================================
**     Method      :  Cpu_EnableInt (bean MC9S12NE64_112)
**
**     Description :
**         Enable maskable interrupts
**     Parameters  : None
**     Returns     : Nothing
** ===================================================================
*/
/*
void Cpu_EnableInt(void)

**      This method is implemented as macro in the header module. **
*/

/*
** ===================================================================
**     Method      :  Cpu_SetStopMode (bean MC9S12NE64_112)
**
**     Description :
**         Set low power mode - Stop mode. For more information
**         about the stop mode see documentation of this CPU.
**     Parameters  : None
**     Returns     : Nothing
** ===================================================================
*/
/*
void Cpu_SetStopMode(void)

**      This method is implemented as macro in the header module. **
*/

/*
** ===================================================================
**     Method      :  Cpu_SetWaitMode (bean MC9S12NE64_112)
**
**     Description :
**         Set low power mode - Wait mode. For more information
**         about the wait mode see documentation of this CPU.
**         Release from Watch mode: Reset or interrupt
**     Parameters  : None
**     Returns     : Nothing
** ===================================================================
*/
/*
void Cpu_SetWaitMode(void)

**      This method is implemented as macro in the header module. **
*/

/*
** ===================================================================
**     Method      :  _EntryPoint (bean MC9S12NE64_112)
**
**     Description :
**         This method is internal. It is used by Processor Expert
**         only.
** ===================================================================
*/
extern void _Startup(void);            /* Forward declaration of external startup function declared in file Start12.c */
#define INITRG_ADR  0x0011             /* Register map position register */
#pragma NO_FRAME
#pragma NO_EXIT
void _EntryPoint(void)
{
  /*** ### MC9S12NE64CPV "Cpu" init code ... ***/
  /*** PE initialization code after reset ***/
  /* Initialization of the registers INITRG, INITRM, INITEE is done to protect them to be written accidentally later by the application */
  *(byte*)INITRG_ADR = 0;              /* Set the register map position */
  asm nop;                             /* nop instruction */
  INITRM=32;                           /* Set the RAM map position */
  /* MISC: ??=0,??=0,??=0,??=0,EXSTR1=0,EXSTR0=0,ROMHM=0,ROMON=1 */
  MISC=1;
  /* System clock initialization */
  CLKSEL=0;
  CLKSEL_PLLSEL = 0;                   /* Select clock source from XTAL */
  PLLCTL_PLLON = 0;                    /* Disable the PLL */
  SYNR = 15;                           /* Set the multiplier register */
  REFDV = 15;                          /* Set the divider register */
  PLLCTL = 192;
  PLLCTL_PLLON = 1;                    /* Enable the PLL */
  while(!CRGFLG_LOCK);                 /* Wait */
  CLKSEL_PLLSEL = 1;                   /* Select clock source from PLL */
  /*** End of PE initialization code after reset ***/

  __asm   jmp _Startup;                /* Jump to C startup code */
}

/*
** ===================================================================
**     Method      :  PE_low_level_init (bean MC9S12NE64_112)
**
**     Description :
**         This method is internal. It is used by Processor Expert
**         only.
** ===================================================================
*/
void PE_low_level_init(void)
{
  /* Common initialization of the CPU registers */
  /* TSCR1: TSWAI=0,TSFRZ=0 */
  clrReg8Bits(TSCR1, 96);
  /* ### MC9S12NE64_112 "Cpu" init code ... */
  INTCR_IRQEN = 0;                     /* Disable the IRQ interrupt. IRQ interrupt is enabled after CPU reset by default. */
  __EI();                              /* Enable interrupts */
}

/* END Cpu. */

/*
** ###################################################################
**
**     This file was created by UNIS Processor Expert 03.44 for 
**     the Motorola HCS12 series of microcontrollers.
**          !!! DEVELOPER VERSION FOR INTERNAL USAGE ONLY !!!
**
** ###################################################################
*/