2 FreeRTOS V8.0.1 - Copyright (C) 2014 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 !<<
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28 >>! distribute a combined work that includes FreeRTOS without being !<<
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29 >>! obliged to provide the source code for proprietary components !<<
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30 >>! outside of the FreeRTOS kernel. !<<
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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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72 #include <intrinsics.h>
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78 /*-----------------------------------------------------------
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79 * Port specific definitions.
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81 * The settings in this file configure FreeRTOS correctly for the given hardware
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84 * These settings should not be altered.
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85 *-----------------------------------------------------------
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88 /* Type definitions. */
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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 typedef uint32_t TickType_t;
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102 #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
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104 /*-----------------------------------------------------------*/
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106 /* Hardware specifics. */
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107 #define portSTACK_GROWTH ( -1 )
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108 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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109 #define portBYTE_ALIGNMENT 8
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111 /*-----------------------------------------------------------*/
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113 /* Task utilities. */
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115 /* Called at the end of an ISR that can cause a context switch. */
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116 #define portEND_SWITCHING_ISR( xSwitchRequired )\
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118 extern uint32_t ulPortYieldRequired; \
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120 if( xSwitchRequired != pdFALSE ) \
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122 ulPortYieldRequired = pdTRUE; \
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126 #define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
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127 #define portYIELD() __asm( "SWI 0" ); __ISB()
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130 /*-----------------------------------------------------------
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131 * Critical section control
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132 *----------------------------------------------------------*/
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134 extern void vPortEnterCritical( void );
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135 extern void vPortExitCritical( void );
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136 extern uint32_t ulPortSetInterruptMask( void );
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137 extern void vPortClearInterruptMask( uint32_t ulNewMaskValue );
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139 #define portENTER_CRITICAL() vPortEnterCritical();
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140 #define portEXIT_CRITICAL() vPortExitCritical();
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141 #define portDISABLE_INTERRUPTS() __disable_irq(); __DSB(); __ISB() /* No priority mask register so global disable is used. */
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142 #define portENABLE_INTERRUPTS() __enable_irq()
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143 #define portSET_INTERRUPT_MASK_FROM_ISR() __get_interrupt_state(); __disable_irq() /* No priority mask register so global disable is used. */
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144 #define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) __set_interrupt_state(x)
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146 /*-----------------------------------------------------------*/
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148 /* Task function macros as described on the FreeRTOS.org WEB site. These are
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149 not required for this port but included in case common demo code that uses these
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151 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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152 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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154 /* Prototype of the FreeRTOS tick handler. This must be installed as the
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155 handler for whichever peripheral is used to generate the RTOS tick. */
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156 void FreeRTOS_Tick_Handler( void );
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158 /* Any task that uses the floating point unit MUST call vPortTaskUsesFPU()
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159 before any floating point instructions are executed. */
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160 void vPortTaskUsesFPU( void );
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161 #define portTASK_USES_FLOATING_POINT() vPortTaskUsesFPU()
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163 /* Architecture specific optimisations. */
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164 #if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1
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166 /* Store/clear the ready priorities in a bit map. */
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167 #define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )
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168 #define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )
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170 /*-----------------------------------------------------------*/
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172 #define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31 - __CLZ( uxReadyPriorities ) )
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174 #endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
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176 #define portNOP() __asm volatile( "NOP" )
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183 /* Suppress warnings that are generated by the IAR tools, but cannot be
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184 fixed in the source code because to do so would cause other compilers to
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185 generate warnings. */
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186 #pragma diag_suppress=Pe191
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187 #pragma diag_suppress=Pa082
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189 #endif /* __ICCARM__ */
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191 #endif /* PORTMACRO_H */
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