--- /dev/null
+/*\r
+ FreeRTOS V8.2.1 - 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
+ 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 on the following\r
+ link: http://www.freertos.org/a00114.html\r
+\r
+ ***************************************************************************\r
+ * *\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
+ * 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/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.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
+ mission critical applications that require provable dependability.\r
+\r
+ 1 tab == 4 spaces!\r
+*/\r
+\r
+/* FreeRTOS includes. */\r
+#include "FreeRTOS.h"\r
+\r
+/* Utility functions to implement run time stats on Cortex-M CPUs. The collected\r
+run time data can be viewed through the CLI interface. See the following URL for\r
+more information on run time stats:\r
+http://www.freertos.org/rtos-run-time-stats.html */\r
+\r
+/* Addresses of registers in the Cortex-M debug hardware. */\r
+#define rtsDWT_CYCCNT ( *( ( unsigned long * ) 0xE0001004 ) )\r
+#define rtsDWT_CONTROL ( *( ( unsigned long * ) 0xE0001000 ) )\r
+#define rtsSCB_DEMCR ( *( ( unsigned long * ) 0xE000EDFC ) )\r
+#define rtsTRCENA_BIT ( 0x01000000UL )\r
+#define rtsCOUNTER_ENABLE_BIT ( 0x01UL )\r
+\r
+/* Simple shift divide for scaling to avoid an overflow occurring too soon. */\r
+#define runtimeSHIFT_13 13\r
+#define runtimeOVERFLOW_BIT_13 ( 1UL << ( 32UL - runtimeSHIFT_13 ) )\r
+static const uint32_t ulPrescaleBits = runtimeSHIFT_13;\r
+static const uint32_t ulOverflowBit = runtimeOVERFLOW_BIT_13;\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+void vConfigureTimerForRunTimeStats( void )\r
+{\r
+ /* Enable TRCENA. */\r
+ rtsSCB_DEMCR = rtsSCB_DEMCR | rtsTRCENA_BIT;\r
+\r
+ /* Reset counter. */\r
+ rtsDWT_CYCCNT = 0;\r
+\r
+ /* Enable counter. */\r
+ rtsDWT_CONTROL = rtsDWT_CONTROL | rtsCOUNTER_ENABLE_BIT;\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+uint32_t ulGetRunTimeCounterValue( void )\r
+{\r
+static unsigned long ulLastCounterValue = 0UL, ulOverflows = 0;\r
+unsigned long ulValueNow;\r
+\r
+ ulValueNow = rtsDWT_CYCCNT;\r
+\r
+ /* Has the value overflowed since it was last read. */\r
+ if( ulValueNow < ulLastCounterValue )\r
+ {\r
+ ulOverflows += ulOverflowBit;\r
+ }\r
+ ulLastCounterValue = ulValueNow;\r
+\r
+ /* There is no prescale on the counter, so simulate in software. */\r
+ ulValueNow = ( ulValueNow >> ulPrescaleBits ) + ulOverflows;\r
+\r
+ return ulValueNow;\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
projects / freertos / blobdiff