2 FreeRTOS.org V5.1.0 - Copyright (C) 2003-2008 Richard Barry.
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4 This file is part of the FreeRTOS.org distribution.
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6 FreeRTOS.org is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2 of the License, or
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9 (at your option) any later version.
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11 FreeRTOS.org is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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16 You should have received a copy of the GNU General Public License
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17 along with FreeRTOS.org; if not, write to the Free Software
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18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 A special exception to the GPL can be applied should you wish to distribute
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21 a combined work that includes FreeRTOS.org, without being obliged to provide
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22 the source code for any proprietary components. See the licensing section
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23 of http://www.FreeRTOS.org for full details of how and when the exception
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26 ***************************************************************************
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27 ***************************************************************************
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29 * SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
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30 * and even write all or part of your application on your behalf. *
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31 * See http://www.OpenRTOS.com for details of the services we provide to *
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32 * expedite your project. *
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34 ***************************************************************************
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35 ***************************************************************************
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37 Please ensure to read the configuration and relevant port sections of the
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38 online documentation.
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40 http://www.FreeRTOS.org - Documentation, latest information, license and
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43 http://www.SafeRTOS.com - A version that is certified for use in safety
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46 http://www.OpenRTOS.com - Commercial support, development, porting,
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47 licensing and training services.
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58 /*-----------------------------------------------------------
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59 * Port specific definitions.
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61 * The settings in this file configure FreeRTOS correctly for the
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62 * given hardware and compiler.
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64 * These settings should not be altered.
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65 *-----------------------------------------------------------
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68 /* Type definitions. */
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69 #define portCHAR char
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70 #define portFLOAT float
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71 #define portDOUBLE double
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72 #define portLONG long
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73 #define portSHORT short
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74 #define portSTACK_TYPE unsigned portLONG
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75 #define portBASE_TYPE portLONG
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77 #if( configUSE_16_BIT_TICKS == 1 )
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78 typedef unsigned portSHORT portTickType;
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79 #define portMAX_DELAY ( portTickType ) 0xffff
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81 typedef unsigned portLONG portTickType;
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82 #define portMAX_DELAY ( portTickType ) 0xffffffff
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84 /*-----------------------------------------------------------*/
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86 /* Hardware specifics. */
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87 #define portSTACK_GROWTH ( -1 )
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88 #define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )
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89 #define portBYTE_ALIGNMENT 4
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90 /*-----------------------------------------------------------*/
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92 /* Task utilities. */
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94 /*-----------------------------------------------------------
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95 * ISR entry and exit macros. These are only required if a task switch
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96 * is required from an ISR.
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97 *----------------------------------------------------------*/
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99 /* If a switch is required then we just need to call */
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100 /* vTaskSwitchContext() as the context has already been */
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103 #define portEXIT_SWITCHING_ISR(SwitchRequired) \
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105 extern void vTaskSwitchContext(void); \
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107 if(SwitchRequired) \
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109 vTaskSwitchContext(); \
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113 extern void vPortYield( void );
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114 #define portYIELD() vPortYield()
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117 /* Critical section management. */
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120 ******************************************************************
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121 * We don't need to worry about whether we're in ARM or
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122 * THUMB mode with the Keil Real View compiler when enabling
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123 * or disabling interrupts as the compiler's intrinsic functions
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124 * take care of that for us.
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125 *******************************************************************
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127 #define portDISABLE_INTERRUPTS() __disable_irq()
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128 #define portENABLE_INTERRUPTS() __enable_irq()
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131 /*-----------------------------------------------------------
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132 * Critical section control
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134 * The code generated by the Keil compiler does not maintain separate
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135 * stack and frame pointers. The portENTER_CRITICAL macro cannot therefore
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136 * use the stack as per other ports. Instead a variable is used to keep
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137 * track of the critical section nesting. This necessitates the use of a
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138 * function in place of the macro.
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139 *----------------------------------------------------------*/
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141 extern void vPortEnterCritical( void );
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142 extern void vPortExitCritical( void );
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144 #define portENTER_CRITICAL() vPortEnterCritical();
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145 #define portEXIT_CRITICAL() vPortExitCritical();
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146 /*-----------------------------------------------------------*/
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148 /* Compiler specifics. */
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151 #define portNOP() __asm{ NOP }
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152 /*-----------------------------------------------------------*/
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154 /* Task function macros as described on the FreeRTOS.org WEB site. */
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155 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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156 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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162 #endif /* PORTMACRO_H */
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