2 FreeRTOS V8.2.0rc1 - 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 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 >>! NOTE: The modification to the GPL is included to allow you to !<<
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14 >>! distribute a combined work that includes FreeRTOS without being !<<
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15 >>! obliged to provide the source code for proprietary components !<<
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16 >>! outside of the FreeRTOS kernel. !<<
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18 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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19 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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20 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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21 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * Having a problem? Start by reading the FAQ "My application does *
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28 * not run, what could be wrong?". Have you defined configASSERT()? *
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30 * http://www.FreeRTOS.org/FAQHelp.html *
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32 ***************************************************************************
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34 ***************************************************************************
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36 * FreeRTOS provides completely free yet professionally developed, *
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37 * robust, strictly quality controlled, supported, and cross *
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38 * platform software that is more than just the market leader, it *
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39 * is the industry's de facto standard. *
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41 * Help yourself get started quickly while simultaneously helping *
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42 * to support the FreeRTOS project by purchasing a FreeRTOS *
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43 * tutorial book, reference manual, or both: *
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44 * http://www.FreeRTOS.org/Documentation *
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46 ***************************************************************************
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48 ***************************************************************************
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50 * Investing in training allows your team to be as productive as *
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51 * possible as early as possible, lowering your overall development *
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52 * cost, and enabling you to bring a more robust product to market *
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53 * earlier than would otherwise be possible. Richard Barry is both *
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54 * the architect and key author of FreeRTOS, and so also the world's *
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55 * leading authority on what is the world's most popular real time *
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56 * kernel for deeply embedded MCU designs. Obtaining your training *
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57 * from Richard ensures your team will gain directly from his in-depth *
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58 * product knowledge and years of usage experience. Contact Real Time *
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59 * Engineers Ltd to enquire about the FreeRTOS Masterclass, presented *
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60 * by Richard Barry: http://www.FreeRTOS.org/contact
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62 ***************************************************************************
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64 ***************************************************************************
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66 * You are receiving this top quality software for free. Please play *
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67 * fair and reciprocate by reporting any suspected issues and *
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68 * participating in the community forum: *
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69 * http://www.FreeRTOS.org/support *
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73 ***************************************************************************
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75 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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76 license and Real Time Engineers Ltd. contact details.
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78 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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79 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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80 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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82 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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83 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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85 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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86 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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87 licenses offer ticketed support, indemnification and commercial middleware.
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89 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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90 engineered and independently SIL3 certified version for use in safety and
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91 mission critical applications that require provable dependability.
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96 /* FreeRTOS includes. */
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97 #include "FreeRTOS.h"
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100 /* Renesas driver includes. */
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101 #include "stdint.h"
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102 #include "dev_drv.h"
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103 #include "devdrv_ostm.h"
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104 #include "devdrv_intc.h"
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105 #include "iodefine.h"
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107 #define runtimeCLOCK_SCALE_SHIFT ( 9UL )
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108 #define runtimeOVERFLOW_BIT ( 1UL << ( 32UL - runtimeCLOCK_SCALE_SHIFT ) )
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110 /* To make casting to the ISR prototype expected by the Renesas GIC drivers. */
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111 typedef void (*ISR_FUNCTION)( uint32_t );
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114 * The application must provide a function that configures a peripheral to
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115 * create the FreeRTOS tick interrupt, then define configSETUP_TICK_INTERRUPT()
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116 * in FreeRTOSConfig.h to call the function. This file contains a function
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117 * that is suitable for use on the Renesas RZ MPU.
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119 void vConfigureTickInterrupt( void )
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121 /* Stop the counter. */
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122 OSTM0.OSTMnTT.BIT.OSTMnTT = 1;
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124 /* Work in interval mode. */
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125 OSTM0.OSTMnCTL.BIT.OSTMnMD1 = OSTM_MODE_INTERVAL;
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127 /* Use interrupts after counting starts. */
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128 OSTM0.OSTMnCTL.BIT.OSTMnMD0 = 1;
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130 /* Start value for down counter. */
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131 OSTM0.OSTMnCMP = configPERIPHERAL_CLOCK_HZ / configTICK_RATE_HZ;
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133 /* Configure the interrupt controller. */
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134 R_INTC_RegistIntFunc( INTC_ID_OSTMI0, ( ISR_FUNCTION ) FreeRTOS_Tick_Handler );
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136 /* Tick must be assigned the lowest interrupt priority. */
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137 R_INTC_SetPriority( INTC_ID_OSTMI0, portLOWEST_USABLE_INTERRUPT_PRIORITY );
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139 INTC.ICCBPR.BIT.Binarypoint = 0;
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140 R_INTC_Enable( INTC_ID_OSTMI0 );
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142 R_OSTM_Open( DEVDRV_CH_0 );
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144 /*-----------------------------------------------------------*/
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147 * Crude implementation of a run time counter used to measure how much time
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148 * each task spends in the Running state.
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150 unsigned long ulGetRunTimeCounterValue( void )
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152 static unsigned long ulLastCounterValue = 0UL, ulOverflows = 0;
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153 unsigned long ulValueNow;
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155 ulValueNow = OSTM1.OSTMnCNT;
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157 /* Has the value overflowed since it was last read. */
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158 if( ulValueNow < ulLastCounterValue )
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162 ulLastCounterValue = ulValueNow;
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164 /* There is no prescale on the counter, so simulate in software. */
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165 ulValueNow >>= runtimeCLOCK_SCALE_SHIFT;
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166 ulValueNow += ( runtimeOVERFLOW_BIT * ulOverflows );
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170 /*-----------------------------------------------------------*/
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172 void vInitialiseRunTimeStats( void )
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174 /* OSTM1 is used as the run time stats counter. */
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176 /* Stop the counter. */
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177 OSTM1.OSTMnTT.BIT.OSTMnTT = 1;
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179 /* Work in compare mode mode. */
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180 OSTM1.OSTMnCTL.BIT.OSTMnMD1 = OSTM_MODE_COMPARE;
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182 /* Don't use interrupts. */
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183 OSTM1.OSTMnCTL.BIT.OSTMnMD0 = 0;
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185 /* Compare is just set to 0. */
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186 OSTM1.OSTMnCMP = 0;
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188 R_OSTM_Open( DEVDRV_CH_1 );
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