2 * FreeRTOS Kernel V10.0.0
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3 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software. If you wish to use our Amazon
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14 * FreeRTOS name, please do so in a fair use way that does not cause confusion.
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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18 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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19 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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23 * http://www.FreeRTOS.org
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24 * http://aws.amazon.com/freertos
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26 * 1 tab == 4 spaces!
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31 + Added functionality to only call vTaskSwitchContext() once
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32 when handling multiple interruptsources in a single interruptcall.
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34 + Included Filenames changed to a .c extension to allow stepping through
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42 /* Scheduler include files. */
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43 #include <FreeRTOS.h>
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47 static bit uxSwitchRequested;
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50 * Vector for the ISR.
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52 void pointed Interrupt()
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55 * Save the context of the current task.
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57 portSAVE_CONTEXT( portINTERRUPTS_FORCED );
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60 * No contextswitch requested yet
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62 uxSwitchRequested = pdFALSE;
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65 * Was the interrupt the FreeRTOS SystemTick?
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67 #include <libFreeRTOS/Drivers/Tick/isrTick.c>
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69 /*******************************************************************************
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70 ** DO NOT MODIFY ANYTHING ABOVE THIS LINE
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71 ********************************************************************************
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72 ** Enter the includes for the ISR-code of the FreeRTOS drivers below.
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74 ** You cannot use local variables. Alternatives are:
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75 ** - Use static variables (Global RAM usage increases)
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76 ** - Call a function (Additional cycles are needed)
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77 ** - Use unused SFR's (preferred, no additional overhead)
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78 ** See "../Serial/isrSerialTx.c" for an example of this last option
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79 *******************************************************************************/
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84 * Was the interrupt a byte being received?
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86 #include "../Serial/isrSerialRx.c"
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90 * Was the interrupt the Tx register becoming empty?
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92 #include "../Serial/isrSerialTx.c"
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96 /*******************************************************************************
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97 ** DO NOT MODIFY ANYTHING BELOW THIS LINE
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98 *******************************************************************************/
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100 * Was a contextswitch requested by one of the
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101 * interrupthandlers?
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103 if ( uxSwitchRequested )
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105 vTaskSwitchContext();
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109 * Restore the context of the (possibly other) task.
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111 portRESTORE_CONTEXT();
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113 #pragma asmline retfie 0
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