2 FreeRTOS V9.0.1 - Copyright (C) 2017 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 This file is part of the FreeRTOS distribution.
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9 FreeRTOS is free software; you can redistribute it and/or modify it under
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10 the terms of the GNU General Public License (version 2) as published by the
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11 Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.
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13 ***************************************************************************
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14 >>! NOTE: The modification to the GPL is included to allow you to !<<
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15 >>! distribute a combined work that includes FreeRTOS without being !<<
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16 >>! obliged to provide the source code for proprietary components !<<
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17 >>! outside of the FreeRTOS kernel. !<<
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18 ***************************************************************************
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20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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23 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * FreeRTOS provides completely free yet professionally developed, *
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28 * robust, strictly quality controlled, supported, and cross *
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29 * platform software that is more than just the market leader, it *
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30 * is the industry's de facto standard. *
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32 * Help yourself get started quickly while simultaneously helping *
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33 * to support the FreeRTOS project by purchasing a FreeRTOS *
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34 * tutorial book, reference manual, or both: *
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35 * http://www.FreeRTOS.org/Documentation *
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37 ***************************************************************************
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39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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40 the FAQ page "My application does not run, what could be wrong?". Have you
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41 defined configASSERT()?
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43 http://www.FreeRTOS.org/support - In return for receiving this top quality
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44 embedded software for free we request you assist our global community by
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45 participating in the support forum.
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47 http://www.FreeRTOS.org/training - Investing in training allows your team to
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48 be as productive as possible as early as possible. Now you can receive
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49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
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50 Ltd, and the world's leading authority on the world's leading RTOS.
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52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
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60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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61 licenses offer ticketed support, indemnification and commercial middleware.
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63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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64 engineered and independently SIL3 certified version for use in safety and
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65 mission critical applications that require provable dependability.
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70 /* FreeRTOS includes. */
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71 #include "FreeRTOS.h"
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74 /* Renesas driver includes. */
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76 #include "dev_drv.h"
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77 #include "devdrv_ostm.h"
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78 #include "devdrv_intc.h"
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79 #include "iodefine.h"
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81 #define runtimeCLOCK_SCALE_SHIFT ( 9UL )
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82 #define runtimeOVERFLOW_BIT ( 1UL << ( 32UL - runtimeCLOCK_SCALE_SHIFT ) )
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84 /* To make casting to the ISR prototype expected by the Renesas GIC drivers. */
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85 typedef void (*ISR_FUNCTION)( uint32_t );
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88 * The application must provide a function that configures a peripheral to
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89 * create the FreeRTOS tick interrupt, then define configSETUP_TICK_INTERRUPT()
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90 * in FreeRTOSConfig.h to call the function. This file contains a function
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91 * that is suitable for use on the Renesas RZ MPU.
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93 void vConfigureTickInterrupt( void )
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95 /* Stop the counter. */
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96 OSTM0.OSTMnTT.BIT.OSTMnTT = 1;
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98 /* Work in interval mode. */
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99 OSTM0.OSTMnCTL.BIT.OSTMnMD1 = OSTM_MODE_INTERVAL;
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101 /* Use interrupts after counting starts. */
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102 OSTM0.OSTMnCTL.BIT.OSTMnMD0 = 1;
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104 /* Start value for down counter. */
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105 OSTM0.OSTMnCMP = configPERIPHERAL_CLOCK_HZ / configTICK_RATE_HZ;
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107 /* Configure the interrupt controller. */
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108 R_INTC_RegistIntFunc( INTC_ID_OSTMI0, ( ISR_FUNCTION ) FreeRTOS_Tick_Handler );
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110 /* Tick must be assigned the lowest interrupt priority. */
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111 R_INTC_SetPriority( INTC_ID_OSTMI0, portLOWEST_USABLE_INTERRUPT_PRIORITY );
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113 INTC.ICCBPR.BIT.Binarypoint = 0;
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114 R_INTC_Enable( INTC_ID_OSTMI0 );
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116 R_OSTM_Open( DEVDRV_CH_0 );
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118 /*-----------------------------------------------------------*/
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121 * Crude implementation of a run time counter used to measure how much time
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122 * each task spends in the Running state.
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124 unsigned long ulGetRunTimeCounterValue( void )
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126 static unsigned long ulLastCounterValue = 0UL, ulOverflows = 0;
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127 unsigned long ulValueNow;
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129 ulValueNow = OSTM1.OSTMnCNT;
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131 /* Has the value overflowed since it was last read. */
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132 if( ulValueNow < ulLastCounterValue )
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136 ulLastCounterValue = ulValueNow;
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138 /* There is no prescale on the counter, so simulate in software. */
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139 ulValueNow >>= runtimeCLOCK_SCALE_SHIFT;
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140 ulValueNow += ( runtimeOVERFLOW_BIT * ulOverflows );
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144 /*-----------------------------------------------------------*/
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146 void vInitialiseRunTimeStats( void )
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148 /* OSTM1 is used as the run time stats counter. */
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150 /* Stop the counter. */
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151 OSTM1.OSTMnTT.BIT.OSTMnTT = 1;
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153 /* Work in compare mode mode. */
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154 OSTM1.OSTMnCTL.BIT.OSTMnMD1 = OSTM_MODE_COMPARE;
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156 /* Don't use interrupts. */
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157 OSTM1.OSTMnCTL.BIT.OSTMnMD0 = 0;
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159 /* Compare is just set to 0. */
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160 OSTM1.OSTMnCMP = 0;
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162 R_OSTM_Open( DEVDRV_CH_1 );
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