2 FreeRTOS V8.0.0 - 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 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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66 /* FreeRTOS includes. */
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67 #include "FreeRTOS.h"
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70 /* Renesas driver includes. */
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72 #include "dev_drv.h"
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73 #include "devdrv_ostm.h"
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74 #include "devdrv_intc.h"
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75 #include "iodefine.h"
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77 #define runtimeCLOCK_SCALE_SHIFT ( 9UL )
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78 #define runtimeOVERFLOW_BIT ( 1UL << ( 32UL - runtimeCLOCK_SCALE_SHIFT ) )
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80 /* To make casting to the ISR prototype expected by the Renesas GIC drivers. */
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81 typedef void (*ISR_FUNCTION)( uint32_t );
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84 * The application must provide a function that configures a peripheral to
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85 * create the FreeRTOS tick interrupt, then define configSETUP_TICK_INTERRUPT()
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86 * in FreeRTOSConfig.h to call the function. This file contains a function
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87 * that is suitable for use on the Renesas RZ MPU.
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89 void vConfigureTickInterrupt( void )
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91 /* Stop the counter. */
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92 OSTM0.OSTMnTT.BIT.OSTMnTT = 1;
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94 /* Work in interval mode. */
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95 OSTM0.OSTMnCTL.BIT.OSTMnMD1 = OSTM_MODE_INTERVAL;
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97 /* Use interrupts after counting starts. */
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98 OSTM0.OSTMnCTL.BIT.OSTMnMD0 = 1;
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100 /* Start value for down counter. */
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101 OSTM0.OSTMnCMP = configPERIPHERAL_CLOCK_HZ / configTICK_RATE_HZ;
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103 /* Configure the interrupt controller. */
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104 R_INTC_RegistIntFunc( INTC_ID_OSTMI0, ( ISR_FUNCTION ) FreeRTOS_Tick_Handler );
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106 /* Tick must be assigned the lowest interrupt priority. */
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107 R_INTC_SetPriority( INTC_ID_OSTMI0, portLOWEST_USABLE_INTERRUPT_PRIORITY );
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109 INTC.ICCBPR.BIT.Binarypoint = 0;
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110 R_INTC_Enable( INTC_ID_OSTMI0 );
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112 R_OSTM_Open( DEVDRV_CH_0 );
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114 /*-----------------------------------------------------------*/
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117 * Crude implementation of a run time counter used to measure how much time
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118 * each task spends in the Running state.
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120 unsigned long ulGetRunTimeCounterValue( void )
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122 static unsigned long ulLastCounterValue = 0UL, ulOverflows = 0;
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123 unsigned long ulValueNow;
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125 ulValueNow = OSTM1.OSTMnCNT;
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127 /* Has the value overflowed since it was last read. */
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128 if( ulValueNow < ulLastCounterValue )
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132 ulLastCounterValue = ulValueNow;
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134 /* There is no prescale on the counter, so simulate in software. */
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135 ulValueNow >>= runtimeCLOCK_SCALE_SHIFT;
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136 ulValueNow += ( runtimeOVERFLOW_BIT * ulOverflows );
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140 /*-----------------------------------------------------------*/
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142 void vInitialiseRunTimeStats( void )
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144 /* OSTM1 is used as the run time stats counter. */
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146 /* Stop the counter. */
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147 OSTM1.OSTMnTT.BIT.OSTMnTT = 1;
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149 /* Work in compare mode mode. */
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150 OSTM1.OSTMnCTL.BIT.OSTMnMD1 = OSTM_MODE_COMPARE;
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152 /* Don't use interrupts. */
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153 OSTM1.OSTMnCTL.BIT.OSTMnMD0 = 0;
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155 /* Compare is just set to 0. */
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156 OSTM1.OSTMnCMP = 0;
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158 R_OSTM_Open( DEVDRV_CH_1 );
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