portmacro.h

FREE embed os FOR ARM ,51等多种MCU

/* 
	FreeRTOS V2.5.2 - Copyright (C) 2003 Richard Barry.

	This file is part of the FreeRTOS distribution.

	FreeRTOS is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	FreeRTOS is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with FreeRTOS; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

	A special exception to the GPL can be applied should you wish to distribute
	a combined work that includes FreeRTOS, without being obliged to provide
	the source code for any proprietary components.  See the licensing section 
	of http://www.FreeRTOS.org for full details of how and when the exception
	can be applied.

	***************************************************************************
	See http://www.FreeRTOS.org for documentation, latest information, license 
	and contact details.  Please ensure to read the configuration and relevant 
	port sections of the online documentation.
	***************************************************************************
*/

#ifndef PORTMACRO_H
#define PORTMACRO_H

/* Include the definitions file for the C8051F120.  This must be the file
supplied with the distribution. */
#include "c8051F120.h"

/*-----------------------------------------------------------
 * Port specific definitions for the Cygnal 8051 port.
 *----------------------------------------------------------*/

/* THE VALUE FOR portSTACK_START MUST BE OBTAINED FROM THE .MEM FILE. */
#define portSTACK_START			( 0x0e )

#define portUSE_PREEMPTION		1
#define portCPU_CLOCK_HZ		( ( unsigned portLONG ) 98000000 )
#define portTICK_RATE_HZ		( ( portTickType ) 1000 )
#define portMAX_PRIORITIES		( ( unsigned portSHORT ) 4 )
#define portMINIMAL_STACK_SIZE	( ( unsigned portSHORT ) 200 - ( unsigned portSHORT ) portSTACK_START )
#define portTOTAL_HEAP_SIZE		( ( unsigned portSHORT ) ( 6 * 1024 ) )

/* Set the following definitions to 1 to include the component, or zero
to exclude the component. */

/* Include/exclude the stated API function. */
#define INCLUDE_vTaskPrioritySet		0
#define INCLUDE_ucTaskPriorityGet		0
#define INCLUDE_vTaskDelete				0
#define INCLUDE_vTaskCleanUpResources	0
#define INCLUDE_vTaskSuspend			0

/* Use/don't use the trace visualisation. */
#define USE_TRACE_FACILITY				0

/* 
 * The tick count (and times defined in tick count units) can be either a 16bit
 * or a 32 bit value.  See documentation on http://www.FreeRTOS.org to decide
 * which to use.
 */
#define USE_16_BIT_TICKS	1

/*-----------------------------------------------------------
 * Do not modify anything below here. 
 *----------------------------------------------------------*/

#define portCHAR		char
#define portFLOAT		float
#define portDOUBLE		float
#define portLONG		long
#define portSHORT		short

#define portSTACK_TYPE	unsigned portCHAR
#define portBYTE_ALIGNMENT			1

#if( USE_16_BIT_TICKS == 1 )
	typedef unsigned portSHORT portTickType;
	#define portMAX_DELAY ( portTickType ) 0xffff
#else
	typedef unsigned portLONG portTickType;
	#define portMAX_DELAY ( portTickType ) 0xffffffff
#endif


/*-----------------------------------------------------------*/	

#define portENTER_CRITICAL()		_asm		\
									push	ACC	\
									push	IE	\
									_endasm;	\
									EA = 0;

#define portEXIT_CRITICAL()			_asm			\
									pop		ACC		\
									_endasm;		\
									ACC &= 0x80;	\
									IE |= ACC;		\
									_asm			\
									pop		ACC		\
									_endasm;

/*-----------------------------------------------------------*/

#define portDISABLE_INTERRUPTS()	EA = 0;
#define portENABLE_INTERRUPTS()		EA = 1;

/*-----------------------------------------------------------*/

#define portSTACK_GROWTH			( 1 )

/*-----------------------------------------------------------*/
#define portTICK_RATE_MS			( ( unsigned portLONG ) 1000 / portTICK_RATE_HZ )		

/*-----------------------------------------------------------*/

/*
 * Prototype for manual context switch function.
 */
void vPortYield( void ) _naked;
#define portYIELD()	vPortYield();


/* All ISR's must have a prototype in the file containing main. */
#if portUSE_PREEMPTION == 0
	void vTimer2ISR( void ) interrupt 5;
#else
	void vTimer2ISR( void ) interrupt 5 _naked;
#endif

void vSerialISR( void ) interrupt 4;

#define inline

#endif /* PORTMACRO_H */