2 FreeRTOS V4.0.1 - Copyright (C) 2003-2006 Richard Barry.
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4 This file is part of the FreeRTOS distribution.
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6 FreeRTOS 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 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; 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, 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 See http://www.FreeRTOS.org for documentation, latest information, license
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28 and contact details. Please ensure to read the configuration and relevant
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29 port sections of the online documentation.
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30 ***************************************************************************
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35 + Added functionality to only call vTaskSwitchContext() once
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36 when handling multiple interruptsources in a single interruptcall.
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38 + Included Filenames changed to a .c extension to allow stepping through
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46 /* Scheduler include files. */
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47 #include <FreeRTOS.h>
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51 static bit uxSwitchRequested;
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54 * Vector for the ISR.
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56 void pointed Interrupt()
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59 * Save the context of the current task.
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61 portSAVE_CONTEXT( portINTERRUPTS_FORCED );
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64 * No contextswitch requested yet
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66 uxSwitchRequested = pdFALSE;
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69 * Was the interrupt the FreeRTOS SystemTick?
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71 #include <libFreeRTOS/Drivers/Tick/isrTick.c>
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73 /*******************************************************************************
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74 ** DO NOT MODIFY ANYTHING ABOVE THIS LINE
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75 ********************************************************************************
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76 ** Enter the includes for the ISR-code of the FreeRTOS drivers below.
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78 ** You cannot use local variables. Alternatives are:
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79 ** - Use static variables (Global RAM usage increases)
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80 ** - Call a function (Additional cycles are needed)
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81 ** - Use unused SFR's (preferred, no additional overhead)
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82 ** See "../Serial/isrSerialTx.c" for an example of this last option
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83 *******************************************************************************/
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88 * Was the interrupt a byte being received?
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90 #include "../Serial/isrSerialRx.c"
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94 * Was the interrupt the Tx register becoming empty?
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96 #include "../Serial/isrSerialTx.c"
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100 /*******************************************************************************
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101 ** DO NOT MODIFY ANYTHING BELOW THIS LINE
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102 *******************************************************************************/
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104 * Was a contextswitch requested by one of the
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105 * interrupthandlers?
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107 if ( uxSwitchRequested )
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109 vTaskSwitchContext();
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113 * Restore the context of the (possibly other) task.
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115 portRESTORE_CONTEXT();
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117 #pragma asmline retfie 0
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