tx_black.h

ThreadX for BLACKFIN BF561的源码。基于BLACKFIN的处理器。

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/*                                                                        */ 
/*            Copyright (c) 1996-2004 by Express Logic Inc.               */ 
/*                                                                        */ 
/*  This software is copyrighted by and is the sole property of Express   */ 
/*  Logic, Inc.  All rights, title, ownership, or other interests         */ 
/*  in the software remain the property of Express Logic, Inc.  This      */ 
/*  software may only be used in accordance with the corresponding        */ 
/*  license agreement.  Any unauthorized use, duplication, transmission,  */ 
/*  distribution, or disclosure of this software is expressly forbidden.  */ 
/*                                                                        */
/*  This Copyright notice may not be removed or modified without prior    */ 
/*  written consent of Express Logic, Inc.                                */ 
/*                                                                        */ 
/*  Express Logic, Inc. reserves the right to modify this software        */ 
/*  without notice.                                                       */ 
/*                                                                        */ 
/*  Express Logic, Inc.                                                   */
/*  11423 West Bernardo Court               [e-mail]         */
/*  San Diego, CA  92127                    http://www.expresslogic.com   */
/*                                                                        */
/*                                                                        */
/**************************************************************************/


/**************************************************************************/
/**************************************************************************/
/**                                                                       */ 
/** ThreadX Component                                                     */
/**                                                                       */
/**   Port Specific                                                       */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/


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/*                                                                        */ 
/*  PORT SPECIFIC ASM INFORMATION                          RELEASE        */ 
/*                                                                        */ 
/*    tx_black.h                                    BLACKFIN561/VisualDSP */ 
/*                                                           4.0          */ 
/*                                                                        */
/*  AUTHOR                                                                */ 
/*                                                                        */ 
/*    William E. Lamie, Express Logic, Inc.                               */ 
/*                                                                        */ 
/*  DESCRIPTION                                                           */ 
/*                                                                        */ 
/*    This file contains data type definitions that make the ThreadX      */ 
/*    real-time kernel function identically on a variety of different     */ 
/*    processor architectures.  For example, the size or number of bits   */ 
/*    in an "int" data type vary between microprocessor architectures and */ 
/*    even C compilers for the same microprocessor.  ThreadX does not     */ 
/*    directly use native C data types.  Instead, ThreadX creates its     */ 
/*    own special types that can be mapped to actual data types by this   */ 
/*    file to guarantee consistency in the interface and functionality.   */ 
/*                                                                        */ 
/*  RELEASE HISTORY                                                       */ 
/*                                                                        */ 
/*    DATE              NAME                      DESCRIPTION             */ 
/*                                                                        */ 
/*  07-15-2005     Karl Homer               Initial BLACKFIN561/VisualDSP */ 
/*                                            version 4.0                 */ 
/*                                                                        */ 
/**************************************************************************/ 

#ifndef TX_BLACKFIN
#define TX_BLACKFIN


/* Define various assembly constants for the port.  */ 

// These defines cannot be modified without corresponding changes to ASM files.
#define INTERRUPT_STACK_SIZE    184             // Interrupt Stack frame size
#define LINK_STACK_SIZE         (INTERRUPT_STACK_SIZE - 8)  // minus FP/RTS

// Threads run at Level 15 while the scheduler uses level 14.
#define INTERRUPT_RETURN_LEVEL  14
#define INTERRUPT_LEVEL         0x3fe0 (Z)      // Initial thread interrupt level
#define INTERRUPT_MASK          0x1f (Z)        // Preserve these from current imask


#endif