2 FreeRTOS V8.2.2 - Copyright (C) 2015 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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71 * This file contains the non-portable and therefore RZ/T specific parts of
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72 * the IntQueue standard demo task - namely the configuration of the timers
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73 * that generate the interrupts and the interrupt entry points.
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76 /* Scheduler includes. */
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77 #include "FreeRTOS.h"
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80 /* Demo includes. */
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81 #include "IntQueueTimer.h"
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82 #include "IntQueue.h"
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84 /* Renesas includes. */
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85 #include "r_cg_macrodriver.h"
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86 #include "r_cg_cmt.h"
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87 #include "r_reset.h"
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89 #define tmrCMT_1_CHANNEL_0_HZ ( 2000UL )
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90 #define tmrCMT_1_CHANNEL_1_HZ ( 2011UL )
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92 /* Handlers for the two timers used. See the documentation page
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93 for this port on http://www.FreeRTOS.org for more information on writing
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94 interrupt handlers. */
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95 void vCMT_1_Channel_0_ISR( void );
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96 void vCMT_1_Channel_1_ISR( void );
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98 /*-----------------------------------------------------------*/
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100 void vInitialiseTimerForIntQueueTest( void )
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102 uint32_t ulCompareMatchValue;
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103 const uint32_t ulPeripheralClockDivider = 6UL, ulCMTClockDivider = 8UL;
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104 extern void FreeRTOS_IRQ_Handler( void );
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106 /* Disable CMI2 and CMI3 interrupts. */
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107 VIC.IEC0.LONG = ( 1UL << 23UL ) | ( 1UL << 24UL );
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109 /* Cancel CMT stop state in LPC. */
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110 r_rst_write_enable();
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112 r_rst_write_disable();
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114 /* Interrupt on compare match. */
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115 CMT2.CMCR.BIT.CMIE = 1;
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116 CMT3.CMCR.BIT.CMIE = 1;
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118 /* Calculate the compare match value. */
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119 ulCompareMatchValue = configCPU_CLOCK_HZ / ulPeripheralClockDivider;
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120 ulCompareMatchValue /= ulCMTClockDivider;
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121 ulCompareMatchValue /= tmrCMT_1_CHANNEL_0_HZ;
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122 ulCompareMatchValue -= 1UL;
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123 CMT2.CMCOR = ( unsigned short ) ulCompareMatchValue;
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125 ulCompareMatchValue = configCPU_CLOCK_HZ / ulPeripheralClockDivider;
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126 ulCompareMatchValue /= ulCMTClockDivider;
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127 ulCompareMatchValue /= tmrCMT_1_CHANNEL_1_HZ;
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128 ulCompareMatchValue -= 1UL;
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129 CMT3.CMCOR = ( unsigned short ) ulCompareMatchValue;
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131 /* Divide the PCLK by 8. */
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132 CMT2.CMCR.BIT.CKS = 0;
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133 CMT3.CMCR.BIT.CKS = 0;
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135 /* Clear count to 0. */
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139 /* Set CMI2 and CMI3 edge detection type. */
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140 VIC.PLS0.LONG |= ( 1UL << 23UL ) | ( 1UL << 24UL );
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142 /* Set CMI2 and CMI3 priority levels so they nest. */
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143 VIC.PRL23.LONG = _CMT_PRIORITY_LEVEL10;
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144 VIC.PRL24.LONG = _CMT_PRIORITY_LEVEL9;
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146 /* Set CMI2 and CMI3 interrupt address. */
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147 #warning Int 1 timer handler addresses not set.
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148 VIC.VAD23.LONG = ( uint32_t ) NULL;
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149 VIC.VAD24.LONG = ( uint32_t ) NULL;
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151 /* Enable CMI2 and CMI3 interrupts in ICU. */
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152 VIC.IEN0.LONG |= ( 1UL << 23UL ) | ( 1UL << 24UL );
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154 /* Start CMT1 channel 0 and 1 count. */
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155 CMT.CMSTR1.BIT.STR2 = 1U;
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156 CMT.CMSTR1.BIT.STR3 = 1U;
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158 /*-----------------------------------------------------------*/
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160 void vCMT_1_Channel_0_ISR( void )
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162 /* Re-enabled interrupts. */
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163 taskENABLE_INTERRUPTS();
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165 /* Call the handler that is part of the common code - this is where the
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166 non-portable code ends and the actual test is performed. */
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167 portYIELD_FROM_ISR( xFirstTimerHandler() );
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169 /*-----------------------------------------------------------*/
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171 void vCMT_1_Channel_1_ISR( void )
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173 /* Re-enabled interrupts. */
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174 portENABLE_INTERRUPTS();
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176 /* Call the handler that is part of the common code - this is where the
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177 non-portable code ends and the actual test is performed. */
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178 portYIELD_FROM_ISR( xSecondTimerHandler() );
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180 /*-----------------------------------------------------------*/
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