lpg.h

OMAP1030 处理器的ARM 侧硬件测试代码 OMAP1030 是TI的双核处理器

/******************************************************************************
            TEXAS INSTRUMENTS INCORPORATED PROPRIETARY INFORMATION           
                                                                             
   Property of Texas Instruments -- For  Unrestricted  Internal  Use  Only 
   Unauthorized reproduction and/or distribution is strictly prohibited.  This 
   product  is  protected  under  copyright  law  and  trade  secret law as an 
   unpublished work.  Created 1987, (C) Copyright 1997 Texas Instruments.  All 
   rights reserved.                                                            

   Filename     : lpg.h

   Description  : Header file for the LPG module

*******************************************************************************/

#ifndef LPG_H
#define LPG_H

#include "global_types.h"
#include "mapping.h"
#include "result.h"

//----------------------------------------------------------
//  Definition of constant
//-----------------------------------------------------------

/* Address of the registers */
#define LPG_LCR_REG  *(REGISTER_UWORD8*)(MAP_LPG_REG)	     /* Frequency & intensity register */
#define LPG_PMR_REG  *(REGISTER_UWORD8*)(MAP_LPG_REG + 0x01) /* Power management      register */


/*  Usefull constants */
#define LPG_LPGRES 	0x40 /* Reset LPG counter */
#define LPG_PERMON 	0x80 /* Force permanent light on */
#define LPG_CLK_EN 	0x01 /* enable LPG clock */

#define LPGPER125MS 	0x00 /* LED blink frequencies */
#define LPGPER250MS 	0x01
#define LPGPER500MS 	0x02
#define LPGPER1S    	0x03
#define LPGPER1_5S  	0x04
#define LPGPER1S    	0x03
  
/* Test constants */
#define LPG_NB_PERCTL 	8    /* Number of blinking period of the LED */
#define LPG_NB_ONCTRL 	8    /* Number of on time of the LED */

/* Watchdog Timer data */
#define LPG_VTCXO 	20	/* VTCXO frequency in Mhz */
#define LPG_TIMER_PTV	7	/* Pre-scale clock Timer Value */


//----------------------------------------------------------
//  Macros definition
//----------------------------------------------------------

/*----------------------------------------------------------
  DISABLE_CLOCK : disable LPG_CLK 
------------------------------------------------------------*/
#define LPG_DISABLE_CLOCK  (LPG_PMR_REG &= ~LPG_CLK_EN)

/*----------------------------------------------------------
  ENABLE_CLOCK : enable LPG_CLK  
------------------------------------------------------------*/
#define LPG_ENABLE_CLOCK (LPG_PMR_REG |= LPG_CLK_EN) 

/*----------------------------------------------------------
  LPG_RESET : LPG counter reset 
------------------------------------------------------------*/
#define LPG_RESET_COUNTER (LPG_LCR_REG &= 0xbf) 

/*----------------------------------------------------------
  LPG_RESET : LPG counter set 
------------------------------------------------------------*/
#define LPG_SET (LPG_LCR_REG |= 0x40) 

//----------------------------------------------------------
//  LPG_PERM_ON : set high to force permanent light on 
//-----------------------------------------------------------
#define LPG_SET_PERMANENT_LIGHT_ON (LPG_LCR_REG |= LPG_PERMON)

//----------------------------------------------------------
//  LPG_PERM_OFF : set low to force permanent light off 
//-----------------------------------------------------------
#define LPG_SET_PERMANENT_LIGHT_OFF (LPG_LCR_REG &= ~LPG_PERMON)


//----------------------------------------------------------
//  Prototypes
//----------------------------------------------------------

void LPG_SetLpg(UWORD8 perctrl, UWORD8 onctrl);

void wait_pwt(UWORD16 value, UWORD8* fiqCount); 

void LPG_TestLpgRegister();

#endif