2 FreeRTOS V7.6.0 - Copyright (C) 2013 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 ***************************************************************************
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9 * FreeRTOS provides completely free yet professionally developed, *
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10 * robust, strictly quality controlled, supported, and cross *
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11 * platform software that has become a de facto standard. *
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13 * Help yourself get started quickly and support the FreeRTOS *
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14 * project by purchasing a FreeRTOS tutorial book, reference *
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15 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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19 ***************************************************************************
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21 This file is part of the FreeRTOS distribution.
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23 FreeRTOS is free software; you can redistribute it and/or modify it under
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24 the terms of the GNU General Public License (version 2) as published by the
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25 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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27 >>! NOTE: The modification to the GPL is included to allow you to distribute
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28 >>! a combined work that includes FreeRTOS without being obliged to provide
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29 >>! the source code for proprietary components outside of the FreeRTOS
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32 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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33 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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34 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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35 link: http://www.freertos.org/a00114.html
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39 ***************************************************************************
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41 * Having a problem? Start by reading the FAQ "My application does *
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42 * not run, what could be wrong?" *
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44 * http://www.FreeRTOS.org/FAQHelp.html *
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46 ***************************************************************************
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48 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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49 license and Real Time Engineers Ltd. contact details.
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51 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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52 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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53 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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55 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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56 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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57 licenses offer ticketed support, indemnification and middleware.
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59 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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60 engineered and independently SIL3 certified version for use in safety and
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61 mission critical applications that require provable dependability.
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74 /* Hardware specifics. */
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75 #include "machine.h"
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77 /*-----------------------------------------------------------
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78 * Port specific definitions.
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80 * The settings in this file configure FreeRTOS correctly for the
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81 * given hardware and compiler.
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83 * These settings should not be altered.
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84 *-----------------------------------------------------------
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87 /* Type definitions - these are a bit legacy and not really used now, other than
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88 portSTACK_TYPE and portBASE_TYPE. */
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89 #define portCHAR char
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90 #define portFLOAT float
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91 #define portDOUBLE double
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92 #define portLONG long
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93 #define portSHORT short
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94 #define portSTACK_TYPE uint32_t
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95 #define portBASE_TYPE long
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97 typedef portSTACK_TYPE StackType_t;
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98 typedef long BaseType_t;
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99 typedef unsigned long UBaseType_t;
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101 #if( configUSE_16_BIT_TICKS == 1 )
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102 typedef uint16_t TickType_t;
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103 #define portMAX_DELAY ( TickType_t ) 0xffff
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105 typedef uint32_t TickType_t;
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106 #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
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108 /*-----------------------------------------------------------*/
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110 /* Hardware specifics. */
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111 #define portBYTE_ALIGNMENT 8 /* Could make four, according to manual. */
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112 #define portSTACK_GROWTH -1
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113 #define portTICK_RATE_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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114 #define portNOP() nop()
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116 #pragma inline_asm vPortYield
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117 static void vPortYield( void )
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119 /* Save clobbered register - may not actually be necessary if inline asm
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120 functions are considered to use the same rules as function calls by the
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123 /* Set ITU SWINTR. */
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126 /* Read back to ensure the value is taken before proceeding. */
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128 /* Restore clobbered register to its previous value. */
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131 #define portYIELD() vPortYield()
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132 #define portYIELD_FROM_ISR( x ) if( x != pdFALSE ) portYIELD()
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134 /* These macros should not be called directly, but through the
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135 taskENTER_CRITICAL() and taskEXIT_CRITICAL() macros. An extra check is
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136 performed if configASSERT() is defined to ensure an assertion handler does not
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137 inadvertently attempt to lower the IPL when the call to assert was triggered
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138 because the IPL value was found to be above configMAX_SYSCALL_INTERRUPT_PRIORITY
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139 when an ISR safe FreeRTOS API function was executed. ISR safe FreeRTOS API
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140 functions are those that end in FromISR. FreeRTOS maintains a separate
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141 interrupt API to ensure API function and interrupt entry is as fast and as
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142 simple as possible. */
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143 #define portENABLE_INTERRUPTS() set_ipl( ( long ) 0 )
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144 #ifdef configASSERT
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145 #define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() configASSERT( ( get_ipl() <= configMAX_SYSCALL_INTERRUPT_PRIORITY ) )
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146 #define portDISABLE_INTERRUPTS() if( get_ipl() < configMAX_SYSCALL_INTERRUPT_PRIORITY ) set_ipl( ( long ) configMAX_SYSCALL_INTERRUPT_PRIORITY )
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148 #define portDISABLE_INTERRUPTS() set_ipl( ( long ) configMAX_SYSCALL_INTERRUPT_PRIORITY )
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151 /* Critical nesting counts are stored in the TCB. */
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152 #define portCRITICAL_NESTING_IN_TCB ( 1 )
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154 /* The critical nesting functions defined within tasks.c. */
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155 extern void vTaskEnterCritical( void );
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156 extern void vTaskExitCritical( void );
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157 #define portENTER_CRITICAL() vTaskEnterCritical()
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158 #define portEXIT_CRITICAL() vTaskExitCritical()
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160 /* As this port allows interrupt nesting... */
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161 #define portSET_INTERRUPT_MASK_FROM_ISR() get_ipl(); set_ipl( ( long ) configMAX_SYSCALL_INTERRUPT_PRIORITY )
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162 #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus ) set_ipl( ( long ) uxSavedInterruptStatus )
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164 /*-----------------------------------------------------------*/
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166 /* Task function macros as described on the FreeRTOS.org WEB site. */
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167 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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168 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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174 #endif /* PORTMACRO_H */
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