2 FreeRTOS.org V5.0.3 - Copyright (C) 2003-2008 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
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2 of the License, or
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9 (at your option) any later version.
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11 FreeRTOS.org is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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16 You should have received a copy of the GNU General Public License
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17 along with FreeRTOS.org; if not, write to the Free Software
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18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 A special exception to the GPL can be applied should you wish to distribute
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21 a combined work that includes FreeRTOS.org, without being obliged to provide
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22 the source code for any proprietary components. See the licensing section
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23 of http://www.FreeRTOS.org for full details of how and when the exception
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26 ***************************************************************************
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27 ***************************************************************************
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29 * SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
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30 * and even write all or part of your application on your behalf. *
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31 * See http://www.OpenRTOS.com for details of the services we provide to *
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32 * expedite your project. *
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34 ***************************************************************************
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35 ***************************************************************************
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37 Please ensure to read the configuration and relevant port sections of the
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38 online documentation.
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40 http://www.FreeRTOS.org - Documentation, latest information, license and
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43 http://www.SafeRTOS.com - A version that is certified for use in safety
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46 http://www.OpenRTOS.com - Commercial support, development, porting,
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47 licensing and training services.
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50 #include "FreeRTOS.h"
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52 #define portPRESCALE_VALUE 64
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53 #define portPRESCALE_REG_SETTING ( 5 << 8 )
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54 #define portPIT_INTERRUPT_ENABLED ( 0x08 )
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55 #define configPIT0_INTERRUPT_VECTOR ( 55 )
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57 void vApplicationSetupInterrupts( void )
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59 const unsigned portSHORT usCompareMatchValue = ( ( configCPU_CLOCK_HZ / portPRESCALE_VALUE ) / configTICK_RATE_HZ );
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61 /* Configure interrupt priority and level and unmask interrupt. */
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62 MCF_INTC0_ICR55 = ( configKERNEL_INTERRUPT_PRIORITY | ( 1 << 3 ) );
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63 MCF_INTC0_IMRH &= ~( MCF_INTC_IMRH_INT_MASK55 );
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65 MCF_INTC0_ICR63 = ( configKERNEL_INTERRUPT_PRIORITY | ( 1 << 3 ) );
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66 MCF_INTC0_IMRH &= ~( MCF_INTC_IMRH_INT_MASK63 );
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68 MCF_PIT0_PCSR |= MCF_PIT_PCSR_PIF;
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69 MCF_PIT0_PCSR = ( portPRESCALE_REG_SETTING | MCF_PIT_PCSR_PIE | MCF_PIT_PCSR_RLD | MCF_PIT_PCSR_EN );
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70 MCF_PIT0_PMR = usCompareMatchValue;
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73 void __attribute__ ((interrupt)) __cs3_isr_interrupt_127(void)
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75 MCF_INTC0_INTFRCH &= ~( 1UL << 31UL );
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78 void __attribute__ ((interrupt)) __cs3_isr_interrupt_119(void)
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80 MCF_PIT0_PCSR |= MCF_PIT_PCSR_PIF;
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81 MCF_INTC0_INTFRCH |= ( 1UL << 31UL );
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