2 FreeRTOS.org V5.2.0 - Copyright (C) 2003-2009 Richard Barry.
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4 This file is part of the FreeRTOS.org distribution.
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6 FreeRTOS.org is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License (version 2) as published
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8 by the Free Software Foundation and modified by the FreeRTOS exception.
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10 FreeRTOS.org is distributed in the hope that it will be useful, but WITHOUT
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11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 You should have received a copy of the GNU General Public License along
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16 with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
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17 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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19 A special exception to the GPL is included to allow you to distribute a
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20 combined work that includes FreeRTOS.org without being obliged to provide
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21 the source code for any proprietary components. See the licensing section
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22 of http://www.FreeRTOS.org for full details.
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25 ***************************************************************************
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27 * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
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29 * This is a concise, step by step, 'hands on' guide that describes both *
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30 * general multitasking concepts and FreeRTOS specifics. It presents and *
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31 * explains numerous examples that are written using the FreeRTOS API. *
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32 * Full source code for all the examples is provided in an accompanying *
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35 ***************************************************************************
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39 Please ensure to read the configuration and relevant port sections of the
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40 online documentation.
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42 http://www.FreeRTOS.org - Documentation, latest information, license and
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45 http://www.SafeRTOS.com - A version that is certified for use in safety
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48 http://www.OpenRTOS.com - Commercial support, development, porting,
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49 licensing and training services.
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52 #include "FreeRTOS.h"
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53 #include "IntQueueTimer.h"
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54 #include "IntQueue.h"
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56 #define timerINTERRUPT3_FREQUENCY ( 2000UL )
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57 #define timerINTERRUPT4_FREQUENCY ( 2001UL )
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59 void vT3InterruptHandler( void );
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60 void vT4InterruptHandler( void );
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62 void __attribute__( (interrupt(ipl0), vector(_TIMER_3_VECTOR))) vT3InterruptWrapper( void );
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63 void __attribute__( (interrupt(ipl0), vector(_TIMER_4_VECTOR))) vT4InterruptWrapper( void );
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65 void vInitialiseTimerForIntQueueTest( void )
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67 /* Timer 1 is used for the tick interrupt, timer 2 is used for the high
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68 frequency interrupt test. This file therefore uses timers 3 and 4. */
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72 PR3 = ( unsigned portSHORT ) ( configPERIPHERAL_CLOCK_HZ / timerINTERRUPT3_FREQUENCY );
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74 /* Setup timer 3 interrupt priority to be above the kernel priority. */
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75 ConfigIntTimer3( T3_INT_ON | ( configMAX_SYSCALL_INTERRUPT_PRIORITY - 1 ) );
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77 /* Clear the interrupt as a starting condition. */
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80 /* Enable the interrupt. */
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83 /* Start the timer. */
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87 /* Do the same for timer 4. */
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90 PR4 = ( unsigned portSHORT ) ( configPERIPHERAL_CLOCK_HZ / timerINTERRUPT4_FREQUENCY );
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92 /* Setup timer 4 interrupt priority to be above the kernel priority. */
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93 ConfigIntTimer4( T4_INT_ON | ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) );
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95 /* Clear the interrupt as a starting condition. */
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98 /* Enable the interrupt. */
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101 /* Start the timer. */
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104 /*-----------------------------------------------------------*/
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106 void vT3InterruptHandler( void )
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109 portEND_SWITCHING_ISR( xFirstTimerHandler() );
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111 /*-----------------------------------------------------------*/
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113 void vT4InterruptHandler( void )
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116 portEND_SWITCHING_ISR( xSecondTimerHandler() );
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