/* | |
FreeRTOS.org V5.1.2 - Copyright (C) 2003-2009 Richard Barry. | |
This file is part of the FreeRTOS.org distribution. | |
FreeRTOS.org is free software; you can redistribute it and/or modify | |
it under the terms of the GNU General Public License as published by | |
the Free Software Foundation; either version 2 of the License, or | |
(at your option) any later version. | |
FreeRTOS.org is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
GNU General Public License for more details. | |
You should have received a copy of the GNU General Public License | |
along with FreeRTOS.org; if not, write to the Free Software | |
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
A special exception to the GPL can be applied should you wish to distribute | |
a combined work that includes FreeRTOS.org, without being obliged to provide | |
the source code for any proprietary components. See the licensing section | |
of http://www.FreeRTOS.org for full details of how and when the exception | |
can be applied. | |
*************************************************************************** | |
*************************************************************************** | |
* * | |
* Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation * | |
* * | |
* This is a concise, step by step, 'hands on' guide that describes both * | |
* general multitasking concepts and FreeRTOS specifics. It presents and * | |
* explains numerous examples that are written using the FreeRTOS API. * | |
* Full source code for all the examples is provided in an accompanying * | |
* .zip file. * | |
* * | |
*************************************************************************** | |
*************************************************************************** | |
Please ensure to read the configuration and relevant port sections of the | |
online documentation. | |
http://www.FreeRTOS.org - Documentation, latest information, license and | |
contact details. | |
http://www.SafeRTOS.com - A version that is certified for use in safety | |
critical systems. | |
http://www.OpenRTOS.com - Commercial support, development, porting, | |
licensing and training services. | |
*/ | |
/* | |
Changes from V3.0.0 | |
+ Added functionality to only call vTaskSwitchContext() once | |
when handling multiple interruptsources in a single interruptcall. | |
+ Included Filenames changed to a .c extension to allow stepping through | |
code using F7. | |
Changes from V3.0.1 | |
*/ | |
#include <pic.h> | |
/* Scheduler include files. */ | |
#include <FreeRTOS.h> | |
#include <task.h> | |
#include <queue.h> | |
static bit uxSwitchRequested; | |
/* | |
* Vector for the ISR. | |
*/ | |
void pointed Interrupt() | |
{ | |
/* | |
* Save the context of the current task. | |
*/ | |
portSAVE_CONTEXT( portINTERRUPTS_FORCED ); | |
/* | |
* No contextswitch requested yet | |
*/ | |
uxSwitchRequested = pdFALSE; | |
/* | |
* Was the interrupt the FreeRTOS SystemTick? | |
*/ | |
#include <libFreeRTOS/Drivers/Tick/isrTick.c> | |
/******************************************************************************* | |
** DO NOT MODIFY ANYTHING ABOVE THIS LINE | |
******************************************************************************** | |
** Enter the includes for the ISR-code of the FreeRTOS drivers below. | |
** | |
** You cannot use local variables. Alternatives are: | |
** - Use static variables (Global RAM usage increases) | |
** - Call a function (Additional cycles are needed) | |
** - Use unused SFR's (preferred, no additional overhead) | |
** See "../Serial/isrSerialTx.c" for an example of this last option | |
*******************************************************************************/ | |
/* | |
* Was the interrupt a byte being received? | |
*/ | |
#include "../Serial/isrSerialRx.c" | |
/* | |
* Was the interrupt the Tx register becoming empty? | |
*/ | |
#include "../Serial/isrSerialTx.c" | |
/******************************************************************************* | |
** DO NOT MODIFY ANYTHING BELOW THIS LINE | |
*******************************************************************************/ | |
/* | |
* Was a contextswitch requested by one of the | |
* interrupthandlers? | |
*/ | |
if ( uxSwitchRequested ) | |
{ | |
vTaskSwitchContext(); | |
} | |
/* | |
* Restore the context of the (possibly other) task. | |
*/ | |
portRESTORE_CONTEXT(); | |
#pragma asmline retfie 0 | |
} |