/*\r
- FreeRTOS V8.0.1 - Copyright (C) 2014 Real Time Engineers Ltd.\r
+ FreeRTOS V8.2.0 - Copyright (C) 2015 Real Time Engineers Ltd.\r
All rights reserved\r
\r
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS provides completely free yet professionally developed, *\r
- * robust, strictly quality controlled, supported, and cross *\r
- * platform software that has become a de facto standard. *\r
- * *\r
- * Help yourself get started quickly and support the FreeRTOS *\r
- * project by purchasing a FreeRTOS tutorial book, reference *\r
- * manual, or both from: http://www.FreeRTOS.org/Documentation *\r
- * *\r
- * Thank you! *\r
- * *\r
- ***************************************************************************\r
-\r
This file is part of the FreeRTOS distribution.\r
\r
FreeRTOS is free software; you can redistribute it and/or modify it under\r
the terms of the GNU General Public License (version 2) as published by the\r
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
\r
+ ***************************************************************************\r
>>! NOTE: The modification to the GPL is included to allow you to !<<\r
>>! distribute a combined work that includes FreeRTOS without being !<<\r
>>! obliged to provide the source code for proprietary components !<<\r
>>! outside of the FreeRTOS kernel. !<<\r
+ ***************************************************************************\r
\r
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
- FOR A PARTICULAR PURPOSE. Full license text is available from the following\r
+ FOR A PARTICULAR PURPOSE. Full license text is available on the following\r
link: http://www.freertos.org/a00114.html\r
\r
- 1 tab == 4 spaces!\r
-\r
***************************************************************************\r
* *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong?" *\r
+ * FreeRTOS provides completely free yet professionally developed, *\r
+ * robust, strictly quality controlled, supported, and cross *\r
+ * platform software that is more than just the market leader, it *\r
+ * is the industry's de facto standard. *\r
* *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
+ * Help yourself get started quickly while simultaneously helping *\r
+ * to support the FreeRTOS project by purchasing a FreeRTOS *\r
+ * tutorial book, reference manual, or both: *\r
+ * http://www.FreeRTOS.org/Documentation *\r
* *\r
***************************************************************************\r
\r
- http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
- license and Real Time Engineers Ltd. contact details.\r
+ http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading\r
+ the FAQ page "My application does not run, what could be wrong?". Have you\r
+ defined configASSERT()?\r
+\r
+ http://www.FreeRTOS.org/support - In return for receiving this top quality\r
+ embedded software for free we request you assist our global community by\r
+ participating in the support forum.\r
+\r
+ http://www.FreeRTOS.org/training - Investing in training allows your team to\r
+ be as productive as possible as early as possible. Now you can receive\r
+ FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers\r
+ Ltd, and the world's leading authority on the world's leading RTOS.\r
\r
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
\r
- http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
- Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS\r
- licenses offer ticketed support, indemnification and middleware.\r
+ http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.\r
+ Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.\r
+\r
+ http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High\r
+ Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS\r
+ licenses offer ticketed support, indemnification and commercial middleware.\r
\r
http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
engineered and independently SIL3 certified version for use in safety and\r
#include "FreeRTOS.h"\r
#include "Task.h"\r
\r
+/* Library includes. */\r
+#include "board.h"\r
+\r
+/*\r
+ * The FreeRTOS tick handler. This function must be installed as the handler\r
+ * for the timer used to generate the tick interrupt. Note that the interrupt\r
+ * generated by the PIT is shared by other system peripherals, so if the PIT is\r
+ * used for Tick generation then FreeRTOS_Tick_Handler() can only be installed\r
+ * directly as the PIT handler if no other system interrupts need to be\r
+ * serviced. If system interrupts other than the PIT need to be serviced then\r
+ * install System_Handler() as the PIT interrupt handler in place of\r
+ * FreeRTOS_Tick_Handler() and add additional interrupt processing into the\r
+ * implementation of System_Handler().\r
+ */\r
+extern void FreeRTOS_Tick_Handler( void );\r
+static void System_Handler( void );\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+static void System_Handler( void )\r
+{\r
+ /* See the comments above the function prototype in this file. */\r
+ FreeRTOS_Tick_Handler();\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
/*\r
* The application must provide a function that configures a peripheral to\r
* create the FreeRTOS tick interrupt, then define configSETUP_TICK_INTERRUPT()\r
*/\r
void vConfigureTickInterrupt( void )\r
{\r
-#warning Needs implementing.\r
+ /* NOTE: The PIT interrupt is cleared by the configCLEAR_TICK_INTERRUPT()\r
+ macro in FreeRTOSConfig.h. */\r
+\r
+ /* Enable the PIT clock. */\r
+ PMC->PMC_PCER0 = 1 << ID_PIT;\r
+\r
+ /* Initialize the PIT to the desired frequency - specified in uS. */\r
+ PIT_Init( 1000000UL / configTICK_RATE_HZ, BOARD_MCK / 1000000 );\r
+\r
+ /* Configure interrupt on PIT. Note this is on the system interrupt, which\r
+ is shared with other system peripherals, so System_Handler() must be\r
+ installed in place of FreeRTOS_Tick_Handler() if other system handlers are\r
+ required. The tick must be given the lowest priority (0 in the SAMA5 AIC) */\r
+ IRQ_ConfigureIT( ID_PIT, AIC_SMR_SRCTYPE_EXT_POSITIVE_EDGE, FreeRTOS_Tick_Handler );\r
+ /* See commend directly above IRQ_ConfigureIT( ID_PIT, 0, System_Handler ); */\r
+ IRQ_EnableIT( ID_PIT );\r
+ PIT_EnableIT();\r
+\r
+ /* Enable the pit. */\r
+ PIT_Enable();\r
+\r
+ /* Prevent compiler warnings in the case where System_Handler() is not used\r
+ as the handler. See the comments above the System_Handler() function\r
+ prototype at the top of this file. */\r
+ ( void ) System_Handler;\r
}\r
/*-----------------------------------------------------------*/\r
-void vApplicationIRQHandler( uint32_t ulICCIAR );\r
-void vApplicationIRQHandler( uint32_t ulICCIAR )\r
-{\r
-uint32_t ulInterruptID;\r
-\r
- /* Re-enable interrupts. */\r
- __asm ( "cpsie i" );\r
-\r
- /* The ID of the interrupt is obtained by bitwise anding the ICCIAR value\r
- with 0x3FF. */\r
- ulInterruptID = ulICCIAR & 0x3FFUL;\r
- \r
-#warning Needs implementing.\r
-}\r
-\r
-\r
\r
projects / freertos / blobdiff