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/************************************************************************* 
* 
*                Copyright Mentor Graphics Corporation 2005 
*                          All Rights Reserved. 
* 
*  THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS 
*  THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS 
*  SUBJECT TO LICENSE TERMS. 
* 
*************************************************************************/ 
 
/************************************************************************* 
* 
*  FILE NAME                                      VERSION 
* 
*  nucleus_specific.h          Nucleus PLUS\ARM926 DM320\Code Composer 1.15.1 
* 
*  COMPONENT 
* 
*       System Constants 
* 
*  DESCRIPTION 
* 
*       This file contains system constants common to both the 
*       application and the actual Nucleus PLUS components.  This file 
*       also contains data structure definitions that hide internal 
*       information from the application. 
* 
* 
*  DATA STRUCTURES 
* 
* 
*  FUNCTIONS 
* 
*       None 
* 
*  DEPENDENCIES 
* 
*       None 
* 
*************************************************************************/ 
 
/* Check to see if this file has been included already.  */ 
 
#ifndef         NUCLEUS_SPECIFIC 
 
#define         NUCLEUS_SPECIFIC 
 
#define NU_PLUS_RELEASE_STRING "Copyright MGC 2005 - Nucleus PLUS - ARM926 DM320 Code Composer v. 1.15" 
 
#define         NU_SUPERV_USER_MODE         0 
#define         NU_MODULE_SUPPORT           0 
#define         NU_MMU_MODE                 0 
 
/* MMU mode requires the module support */ 
#if (NU_MMU_MODE == 1) 
 
#undef          NU_MODULE_SUPPORT 
#define         NU_MODULE_SUPPORT           1 
 
#endif 
 
/* Module support requires mode switching */ 
#if (NU_MODULE_SUPPORT == 1) 
 
#undef          NU_SUPERV_USER_MODE 
#define         NU_SUPERV_USER_MODE         1 
 
#endif 
 
/* Define the clock frequency that is used by the timer control unit (must be defined in hertz */ 
#define         NU_System_Clock_Frequency   27000000 
 
/* Define the number of Nucleus PLUS ticks that will occur every second. 
   By default, the PLUS timer goes off every 10ms, so the PLUS System Clock 
   ticks 100 times in a second. */ 
#define         NU_PLUS_Ticks_Per_Second    100 
 
/* Define the number of timer ticks that will occur every second.  The 
   ARM926 uses no pre-scalar, so the number of hardware clock ticks 
   per second is the same as the clock frequency. */ 
#define         NU_HW_Ticks_Per_Second      (NU_System_Clock_Frequency / 5) 
 
/* The number of timer ticks between Nucleus timer interrupts that increment 
   TMD_System_Clock.  See timer initialization code for details about how to 
   determine this number. */ 
#define         NU_HW_Ticks_Per_SW_Tick     (NU_HW_Ticks_Per_Second / NU_PLUS_Ticks_Per_Second) 
 
/* Define NU_COUNT_DOWN if the system timer counts down to 0. 
   This macro is used to switch between formulas to calculate 
   the number of ticks since the systems started in NU_Get_Clock */ 
#define         NU_COUNT_UP 
 
/* This macro returns the value of the Nucleus timer (not the system clock) */ 
#define         NU_Retrieve_Hardware_Clock(hw_tick) hw_tick = *(volatile UINT32 *)(0x0003000A) 
 
/* Define interrupt lockout and enable constants.  */ 
 
#define         NU_DISABLE_INTERRUPTS       0xC0 
#define         NU_ENABLE_INTERRUPTS        0x00 
 
 
/* Define the number of accesses required to read or write a pointer data 
   type.  This value is used to make optimizations in some ports of Nucleus 
   PLUS.  */ 
 
#define         NU_POINTER_ACCESS           1 
 
 
/* Define the padding required for usage of the DATA_ELEMENT type within 
   Nucleus PLUS structures.  These values insure proper alignment for the 
   next structure member.  */ 
 
#define         PAD_1                       3 
#define         PAD_2                       2 
#define         PAD_3                       1 
 
 
/* Define constants that are target dependent and/or are used for internal 
   purposes.  */ 
 
#define         NU_MIN_STACK_SIZE           240 
#define         NU_MAX_NAME                 8 
#define         NU_MAX_VECTORS              39 
#define         NU_MAX_LISRS                39 
 
#endif  /* !NUCLEUS */