/*\r
- FreeRTOS V8.0.1 - Copyright (C) 2014 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
- >>! 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
- 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
- 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
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
- license and Real Time Engineers Ltd. contact details.\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
-\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
- mission critical applications that require provable dependability.\r
-\r
- 1 tab == 4 spaces!\r
-*/\r
+ * FreeRTOS Kernel V10.0.0\r
+ * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\r
+ *\r
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
+ * this software and associated documentation files (the "Software"), to deal in\r
+ * the Software without restriction, including without limitation the rights to\r
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
+ * the Software, and to permit persons to whom the Software is furnished to do so,\r
+ * subject to the following conditions:\r
+ *\r
+ * The above copyright notice and this permission notice shall be included in all\r
+ * copies or substantial portions of the Software. If you wish to use our Amazon\r
+ * FreeRTOS name, please do so in a fair use way that does not cause confusion.\r
+ *\r
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
+ *\r
+ * http://www.FreeRTOS.org\r
+ * http://aws.amazon.com/freertos\r
+ *\r
+ * 1 tab == 4 spaces!\r
+ */\r
\r
/*\r
* This file initialises three timers as follows:\r
* interrupts. As the interrupt is shared the nesting achieved is not as deep\r
* as normal when this test is executed, but still worth while.\r
*\r
- * TC2 channel 0 provides a much higher frequency timer that tests the nesting of\r
- * interrupts that execute above the maximum syscall interrupt priority.\r
+ * TC2 channel 0 provides a much higher frequency timer that tests the nesting\r
+ * of interrupts that don't use the FreeRTOS API. For convenience, the high\r
+ * frequency timer also keeps a count of the number of time it executes, and the\r
+ * count is used as the time base for the run time stats (which can be viewed\r
+ * through the CLI).\r
*\r
* All the timers can nest with the tick interrupt - creating a maximum\r
* interrupt nesting depth of 3 (normally 4, if the first two timers used\r
* separate interrupts).\r
*\r
- * For convenience, the high frequency timer is also used to provide the time\r
- * base for the run time stats.\r
*/\r
\r
/* Scheduler includes. */\r
ensure they don't remain synchronised. The frequency of the highest priority\r
interrupt is 20 times faster so really hammers the interrupt entry and exit\r
code. */\r
-#define tmrTIMERS_USED 3\r
#define tmrTIMER_0_FREQUENCY ( 2000UL )\r
#define tmrTIMER_1_FREQUENCY ( 2003UL )\r
#define tmrTIMER_2_FREQUENCY ( 20000UL )\r
#define tmrHIGHER_PRIORITY 5\r
/*-----------------------------------------------------------*/\r
\r
-/* Handlers for the three timer channels. */\r
+/* Handlers for the two timer peripherals - two channels are used in the TC0\r
+timer. */\r
static void prvTC0_Handler( void );\r
static void prvTC1_Handler( void );\r
\r
\r
static void prvTC0_Handler( void )\r
{\r
-#warning Why can interrupts only be enabled inside the C function?\r
- __enable_interrupt();\r
-\r
/* Read will clear the status bit. */\r
if( ( TC0->TC_CHANNEL[ tmrTC0_CHANNEL_0 ].TC_SR & tmrRC_COMPARE ) != 0 )\r
{\r
{\r
volatile uint32_t ulDummy;\r
\r
- __enable_interrupt();\r
-\r
/* Dummy read to clear status bit. */\r
ulDummy = TC1->TC_CHANNEL[ tmrTC1_CHANNEL_0 ].TC_SR;\r
\r
projects / freertos / blobdiff