2 * FreeRTOS Kernel V10.0.0
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3 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software. If you wish to use our Amazon
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14 * FreeRTOS name, please do so in a fair use way that does not cause confusion.
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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18 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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19 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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23 * http://www.FreeRTOS.org
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24 * http://aws.amazon.com/freertos
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26 * 1 tab == 4 spaces!
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32 /*-----------------------------------------------------------
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33 * Port specific definitions.
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35 * The settings in this file configure FreeRTOS correctly for the
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36 * given hardware and compiler.
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38 * These settings should not be altered.
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39 *-----------------------------------------------------------
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42 /* Type definitions. */
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44 #define portCHAR char
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45 #define portFLOAT float
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46 #define portDOUBLE double
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47 #define portLONG long
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48 #define portSHORT short
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49 #define portSTACK_TYPE uint16_t
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50 #define portBASE_TYPE short
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51 #define portPOINTER_SIZE_TYPE uint16_t
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53 typedef portSTACK_TYPE StackType_t;
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54 typedef short BaseType_t;
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55 typedef unsigned short UBaseType_t;
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57 #if( configUSE_16_BIT_TICKS == 1 )
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58 typedef uint16_t TickType_t;
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59 #define portMAX_DELAY ( TickType_t ) 0xffff
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61 typedef uint32_t TickType_t;
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62 #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
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64 /*-----------------------------------------------------------*/
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66 /* Interrupt control macros. */
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67 #define portDISABLE_INTERRUPTS() __asm volatile ( "DI" )
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68 #define portENABLE_INTERRUPTS() __asm volatile ( "EI" )
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69 /*-----------------------------------------------------------*/
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71 /* Critical section control macros. */
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72 #define portNO_CRITICAL_SECTION_NESTING ( ( unsigned short ) 0 )
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74 #define portENTER_CRITICAL() \
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76 extern volatile uint16_t usCriticalNesting; \
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78 portDISABLE_INTERRUPTS(); \
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80 /* Now interrupts are disabled ulCriticalNesting can be accessed */ \
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81 /* directly. Increment ulCriticalNesting to keep a count of how many */ \
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82 /* times portENTER_CRITICAL() has been called. */ \
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83 usCriticalNesting++; \
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86 #define portEXIT_CRITICAL() \
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88 extern volatile uint16_t usCriticalNesting; \
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90 if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \
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92 /* Decrement the nesting count as we are leaving a critical section. */ \
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93 usCriticalNesting--; \
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95 /* If the nesting level has reached zero then interrupts should be */ \
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97 if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \
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99 portENABLE_INTERRUPTS(); \
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103 /*-----------------------------------------------------------*/
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105 /* Task utilities. */
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106 #define portYIELD() __asm volatile ( "BRK" )
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107 #define portYIELD_FROM_ISR( xHigherPriorityTaskWoken ) if( xHigherPriorityTaskWoken ) vTaskSwitchContext()
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108 #define portNOP() __asm volatile ( "NOP" )
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109 /*-----------------------------------------------------------*/
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111 /* Hardwware specifics. */
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112 #define portBYTE_ALIGNMENT 2
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113 #define portSTACK_GROWTH ( -1 )
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114 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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115 /*-----------------------------------------------------------*/
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117 /* Task function macros as described on the FreeRTOS.org WEB site. */
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118 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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119 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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121 #endif /* PORTMACRO_H */
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