2 FreeRTOS V7.5.1 - Copyright (C) 2013 Real Time Engineers Ltd.
\r
4 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
\r
6 ***************************************************************************
\r
8 * FreeRTOS provides completely free yet professionally developed, *
\r
9 * robust, strictly quality controlled, supported, and cross *
\r
10 * platform software that has become a de facto standard. *
\r
12 * Help yourself get started quickly and support the FreeRTOS *
\r
13 * project by purchasing a FreeRTOS tutorial book, reference *
\r
14 * manual, or both from: http://www.FreeRTOS.org/Documentation *
\r
18 ***************************************************************************
\r
20 This file is part of the FreeRTOS distribution.
\r
22 FreeRTOS is free software; you can redistribute it and/or modify it under
\r
23 the terms of the GNU General Public License (version 2) as published by the
\r
24 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
\r
26 >>! NOTE: The modification to the GPL is included to allow you to distribute
\r
27 >>! a combined work that includes FreeRTOS without being obliged to provide
\r
28 >>! the source code for proprietary components outside of the FreeRTOS
\r
31 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
\r
32 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
\r
33 FOR A PARTICULAR PURPOSE. Full license text is available from the following
\r
34 link: http://www.freertos.org/a00114.html
\r
38 ***************************************************************************
\r
40 * Having a problem? Start by reading the FAQ "My application does *
\r
41 * not run, what could be wrong?" *
\r
43 * http://www.FreeRTOS.org/FAQHelp.html *
\r
45 ***************************************************************************
\r
47 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
\r
48 license and Real Time Engineers Ltd. contact details.
\r
50 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
\r
51 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
\r
52 compatible FAT file system, and our tiny thread aware UDP/IP stack.
\r
54 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
\r
55 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
\r
56 licenses offer ticketed support, indemnification and middleware.
\r
58 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
\r
59 engineered and independently SIL3 certified version for use in safety and
\r
60 mission critical applications that require provable dependability.
\r
73 /* Hardware specifics. */
\r
74 #include "machine.h"
\r
76 /*-----------------------------------------------------------
\r
77 * Port specific definitions.
\r
79 * The settings in this file configure FreeRTOS correctly for the
\r
80 * given hardware and compiler.
\r
82 * These settings should not be altered.
\r
83 *-----------------------------------------------------------
\r
86 /* Type definitions - these are a bit legacy and not really used now, other than
\r
87 portSTACK_TYPE and portBASE_TYPE. */
\r
88 #define portCHAR char
\r
89 #define portFLOAT float
\r
90 #define portDOUBLE double
\r
91 #define portLONG long
\r
92 #define portSHORT short
\r
93 #define portSTACK_TYPE unsigned portLONG
\r
94 #define portBASE_TYPE long
\r
96 #if( configUSE_16_BIT_TICKS == 1 )
\r
97 typedef unsigned portSHORT portTickType;
\r
98 #define portMAX_DELAY ( portTickType ) 0xffff
\r
100 typedef unsigned portLONG portTickType;
\r
101 #define portMAX_DELAY ( portTickType ) 0xffffffff
\r
103 /*-----------------------------------------------------------*/
\r
105 /* Hardware specifics. */
\r
106 #define portBYTE_ALIGNMENT 8 /* Could make four, according to manual. */
\r
107 #define portSTACK_GROWTH -1
\r
108 #define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )
\r
109 #define portNOP() nop()
\r
112 #pragma inline_asm vPortYield
\r
113 static void vPortYield( void )
\r
115 /* Save clobbered register - may not actually be necessary if inline asm
\r
116 functions are considered to use the same rules as function calls by the
\r
119 /* Set ITU SWINTR. */
\r
122 /* Read back to ensure the value is taken before proceeding. */
\r
124 /* Restore clobbered register to its previous value. */
\r
127 #define portYIELD() vPortYield()
\r
128 #define portYIELD_FROM_ISR( x ) if( x != pdFALSE ) portYIELD()
\r
130 /* These macros should not be called directly, but through the
\r
131 taskENTER_CRITICAL() and taskEXIT_CRITICAL() macros. An extra check is
\r
132 performed if configASSERT() is defined to ensure an assertion handler does not
\r
133 inadvertently attempt to lower the IPL when the call to assert was triggered
\r
134 because the IPL value was found to be above configMAX_SYSCALL_INTERRUPT_PRIORITY
\r
135 when an ISR safe FreeRTOS API function was executed. ISR safe FreeRTOS API
\r
136 functions are those that end in FromISR. FreeRTOS maintains a separate
\r
137 interrupt API to ensure API function and interrupt entry is as fast and as
\r
138 simple as possible. */
\r
139 #define portENABLE_INTERRUPTS() set_ipl( ( long ) 0 )
\r
140 #ifdef configASSERT
\r
141 #define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() configASSERT( ( get_ipl() <= configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
\r
142 #define portDISABLE_INTERRUPTS() if( get_ipl() < configMAX_SYSCALL_INTERRUPT_PRIORITY ) set_ipl( ( long ) configMAX_SYSCALL_INTERRUPT_PRIORITY )
\r
144 #define portDISABLE_INTERRUPTS() set_ipl( ( long ) configMAX_SYSCALL_INTERRUPT_PRIORITY )
\r
147 /* Critical nesting counts are stored in the TCB. */
\r
148 #define portCRITICAL_NESTING_IN_TCB ( 1 )
\r
150 /* The critical nesting functions defined within tasks.c. */
\r
151 extern void vTaskEnterCritical( void );
\r
152 extern void vTaskExitCritical( void );
\r
153 #define portENTER_CRITICAL() vTaskEnterCritical()
\r
154 #define portEXIT_CRITICAL() vTaskExitCritical()
\r
156 /* As this port allows interrupt nesting... */
\r
157 #define portSET_INTERRUPT_MASK_FROM_ISR() get_ipl(); set_ipl( ( long ) configMAX_SYSCALL_INTERRUPT_PRIORITY )
\r
158 #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus ) set_ipl( ( long ) uxSavedInterruptStatus )
\r
160 /*-----------------------------------------------------------*/
\r
162 /* Task function macros as described on the FreeRTOS.org WEB site. */
\r
163 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
\r
164 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
\r
170 #endif /* PORTMACRO_H */
\r