2 FreeRTOS V6.0.1 - Copyright (C) 2009 Real Time Engineers Ltd.
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4 ***************************************************************************
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8 * + New to FreeRTOS, *
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9 * + Wanting to learn FreeRTOS or multitasking in general quickly *
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10 * + Looking for basic training, *
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11 * + Wanting to improve your FreeRTOS skills and productivity *
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13 * then take a look at the FreeRTOS eBook *
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15 * "Using the FreeRTOS Real Time Kernel - a Practical Guide" *
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16 * http://www.FreeRTOS.org/Documentation *
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18 * A pdf reference manual is also available. Both are usually delivered *
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19 * to your inbox within 20 minutes to two hours when purchased between 8am *
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20 * and 8pm GMT (although please allow up to 24 hours in case of *
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21 * exceptional circumstances). Thank you for your support! *
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23 ***************************************************************************
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25 This file is part of the FreeRTOS distribution.
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27 FreeRTOS is free software; you can redistribute it and/or modify it under
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28 the terms of the GNU General Public License (version 2) as published by the
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29 Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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30 ***NOTE*** The exception to the GPL is included to allow you to distribute
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31 a combined work that includes FreeRTOS without being obliged to provide the
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32 source code for proprietary components outside of the FreeRTOS kernel.
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33 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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34 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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35 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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36 more details. You should have received a copy of the GNU General Public
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37 License and the FreeRTOS license exception along with FreeRTOS; if not it
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38 can be viewed here: http://www.freertos.org/a00114.html and also obtained
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39 by writing to Richard Barry, contact details for whom are available on the
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44 http://www.FreeRTOS.org - Documentation, latest information, license and
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47 http://www.SafeRTOS.com - A version that is certified for use in safety
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50 http://www.OpenRTOS.com - Commercial support, development, porting,
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51 licensing and training services.
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54 #include "FreeRTOS.h"
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57 #include "partest.h"
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59 #define mainFRQCR_VALUE ( 0x0303 ) /* Input = 12.5MHz, I Clock = 200MHz, B Clock = 50MHz, P Clock = 50MHz */
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61 void vApplicationMallocFailedHook( void );
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62 void vApplicationIdleHook( void );
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63 static void prvSetupHardware( void );
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65 /*-----------------------------------------------------------*/
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71 vTaskStartScheduler();
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72 taskENABLE_INTERRUPTS();
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75 /*-----------------------------------------------------------*/
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77 void vApplicationMallocFailedHook( void )
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79 /* A call to vPortMalloc() failed, probably during the creation of a task,
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80 queue or semaphore. Inspect pxCurrentTCB to find which task is currently
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84 /*-----------------------------------------------------------*/
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86 void vApplicationIdleHook( void )
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88 /* Code can be added to the idle task here. This function must *NOT* attempt
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89 to block. Also, if the application uses the vTaskDelete() API function then
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90 this function must return regularly to ensure the idle task gets a chance to
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91 clean up the memory used by deleted tasks. */
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93 /*-----------------------------------------------------------*/
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95 static void prvSetupHardware( void )
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97 volatile unsigned long ul;
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99 /* Set the CPU and peripheral clocks. */
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100 CPG.FRQCR.WORD = mainFRQCR_VALUE;
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102 /* Wait for the clock to settle. */
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103 for( ul = 0; ul < 99; ul++ )
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108 /* Initialise the ports used to toggle LEDs. */
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109 vParTestInitialise();
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111 /*-----------------------------------------------------------*/
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113 void vApplicationSetupTimerInterrupt( void )
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115 /* The peripheral clock is divided by 32 before feeding the compare match
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116 periphersl (CMT). */
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117 unsigned long ulCompareMatch = ( configPERIPHERAL_CLOCK_HZ / ( configTICK_RATE_HZ * 32 ) ) + 1;
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119 /* Configure a timer to create the RTOS tick interrupt. This example uses
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120 the compare match timer, but the multi function timer or possible even the
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121 watchdog timer could also be used. Ensure vPortTickInterrupt() is installed
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122 as the interrupt handler for whichever peripheral is used. */
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124 /* Turn the CMT on. */
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125 STB.CR4.BIT._CMT = 0;
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127 /* Set the compare match value for the required tick frequency. */
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128 CMT0.CMCOR = ( unsigned short ) ulCompareMatch;
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130 /* Divide the peripheral clock by 32. */
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131 CMT0.CMCSR.BIT.CKS = 0x01;
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133 /* Set the CMT interrupt priority - the interrupt priority must be
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134 configKERNEL_INTERRUPT_PRIORITY no matter which peripheral is used to generate
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135 the tick interrupt. */
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136 INTC.IPR08.BIT._CMT0 = configKERNEL_INTERRUPT_PRIORITY;
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138 /* Clear the interrupt flag. */
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139 CMT0.CMCSR.BIT.CMF = 0;
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141 /* Enable the compare match interrupt. */
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142 CMT0.CMCSR.BIT.CMIE = 0x01;
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144 /* Start the timer. */
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145 CMT.CMSTR.BIT.STR0 = 0x01;
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147 /*-----------------------------------------------------------*/
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149 //#pragma interrupt (vTempISR)
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150 //void vTempISR( void );
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152 void xINT_CMT_CMI0( void )
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154 CMT0.CMCSR.BIT.CMF = 0;
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