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author | Maximilien Cuony <maximilien@theglu.org> | 2016-05-31 21:58:17 +0200 |
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committer | Maximilien Cuony <maximilien@theglu.org> | 2016-05-31 21:58:17 +0200 |
commit | 9069fc127e4f73041fbd1f66e4506fcf12418315 (patch) | |
tree | 902aa478c6e9d47cde89eaa996b5f7f662070518 /src/FreeRTOS-Sim-master/Demo/Common/Minimal/crflash.c | |
parent | 4803231e214fbd19eab4ba2289583859ee07183f (diff) | |
download | glutte-o-matic-9069fc127e4f73041fbd1f66e4506fcf12418315.tar.gz glutte-o-matic-9069fc127e4f73041fbd1f66e4506fcf12418315.tar.bz2 glutte-o-matic-9069fc127e4f73041fbd1f66e4506fcf12418315.zip |
Simuator - Work in progress
Diffstat (limited to 'src/FreeRTOS-Sim-master/Demo/Common/Minimal/crflash.c')
-rw-r--r-- | src/FreeRTOS-Sim-master/Demo/Common/Minimal/crflash.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/src/FreeRTOS-Sim-master/Demo/Common/Minimal/crflash.c b/src/FreeRTOS-Sim-master/Demo/Common/Minimal/crflash.c new file mode 100644 index 0000000..14431ad --- /dev/null +++ b/src/FreeRTOS-Sim-master/Demo/Common/Minimal/crflash.c @@ -0,0 +1,250 @@ +/*
+ FreeRTOS V8.2.2 - Copyright (C) 2015 Real Time Engineers Ltd.
+ All rights reserved
+
+ VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
+
+ This file is part of the FreeRTOS distribution.
+
+ FreeRTOS is free software; you can redistribute it and/or modify it under
+ the terms of the GNU General Public License (version 2) as published by the
+ Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
+
+ ***************************************************************************
+ >>! NOTE: The modification to the GPL is included to allow you to !<<
+ >>! distribute a combined work that includes FreeRTOS without being !<<
+ >>! obliged to provide the source code for proprietary components !<<
+ >>! outside of the FreeRTOS kernel. !<<
+ ***************************************************************************
+
+ FreeRTOS 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. Full license text is available on the following
+ link: http://www.freertos.org/a00114.html
+
+ ***************************************************************************
+ * *
+ * FreeRTOS provides completely free yet professionally developed, *
+ * robust, strictly quality controlled, supported, and cross *
+ * platform software that is more than just the market leader, it *
+ * is the industry's de facto standard. *
+ * *
+ * Help yourself get started quickly while simultaneously helping *
+ * to support the FreeRTOS project by purchasing a FreeRTOS *
+ * tutorial book, reference manual, or both: *
+ * http://www.FreeRTOS.org/Documentation *
+ * *
+ ***************************************************************************
+
+ http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
+ the FAQ page "My application does not run, what could be wrong?". Have you
+ defined configASSERT()?
+
+ http://www.FreeRTOS.org/support - In return for receiving this top quality
+ embedded software for free we request you assist our global community by
+ participating in the support forum.
+
+ http://www.FreeRTOS.org/training - Investing in training allows your team to
+ be as productive as possible as early as possible. Now you can receive
+ FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
+ Ltd, and the world's leading authority on the world's leading RTOS.
+
+ http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
+ including FreeRTOS+Trace - an indispensable productivity tool, a DOS
+ compatible FAT file system, and our tiny thread aware UDP/IP stack.
+
+ http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
+ Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
+
+ http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
+ Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
+ licenses offer ticketed support, indemnification and commercial middleware.
+
+ http://www.SafeRTOS.com - High Integrity Systems also provide a safety
+ engineered and independently SIL3 certified version for use in safety and
+ mission critical applications that require provable dependability.
+
+ 1 tab == 4 spaces!
+*/
+
+/*
+ * This demo application file demonstrates the use of queues to pass data
+ * between co-routines.
+ *
+ * N represents the number of 'fixed delay' co-routines that are created and
+ * is set during initialisation.
+ *
+ * N 'fixed delay' co-routines are created that just block for a fixed
+ * period then post the number of an LED onto a queue. Each such co-routine
+ * uses a different block period. A single 'flash' co-routine is also created
+ * that blocks on the same queue, waiting for the number of the next LED it
+ * should flash. Upon receiving a number it simply toggle the instructed LED
+ * then blocks on the queue once more. In this manner each LED from LED 0 to
+ * LED N-1 is caused to flash at a different rate.
+ *
+ * The 'fixed delay' co-routines are created with co-routine priority 0. The
+ * flash co-routine is created with co-routine priority 1. This means that
+ * the queue should never contain more than a single item. This is because
+ * posting to the queue will unblock the 'flash' co-routine, and as this has
+ * a priority greater than the tasks posting to the queue it is guaranteed to
+ * have emptied the queue and blocked once again before the queue can contain
+ * any more date. An error is indicated if an attempt to post data to the
+ * queue fails - indicating that the queue is already full.
+ *
+ */
+
+/* Scheduler includes. */
+#include "FreeRTOS.h"
+#include "croutine.h"
+#include "queue.h"
+
+/* Demo application includes. */
+#include "partest.h"
+#include "crflash.h"
+
+/* The queue should only need to be of length 1. See the description at the
+top of the file. */
+#define crfQUEUE_LENGTH 1
+
+#define crfFIXED_DELAY_PRIORITY 0
+#define crfFLASH_PRIORITY 1
+
+/* Only one flash co-routine is created so the index is not significant. */
+#define crfFLASH_INDEX 0
+
+/* Don't allow more than crfMAX_FLASH_TASKS 'fixed delay' co-routines to be
+created. */
+#define crfMAX_FLASH_TASKS 8
+
+/* We don't want to block when posting to the queue. */
+#define crfPOSTING_BLOCK_TIME 0
+
+/*
+ * The 'fixed delay' co-routine as described at the top of the file.
+ */
+static void prvFixedDelayCoRoutine( CoRoutineHandle_t xHandle, UBaseType_t uxIndex );
+
+/*
+ * The 'flash' co-routine as described at the top of the file.
+ */
+static void prvFlashCoRoutine( CoRoutineHandle_t xHandle, UBaseType_t uxIndex );
+
+/* The queue used to pass data between the 'fixed delay' co-routines and the
+'flash' co-routine. */
+static QueueHandle_t xFlashQueue;
+
+/* This will be set to pdFALSE if we detect an error. */
+static BaseType_t xCoRoutineFlashStatus = pdPASS;
+
+/*-----------------------------------------------------------*/
+
+/*
+ * See the header file for details.
+ */
+void vStartFlashCoRoutines( UBaseType_t uxNumberToCreate )
+{
+UBaseType_t uxIndex;
+
+ if( uxNumberToCreate > crfMAX_FLASH_TASKS )
+ {
+ uxNumberToCreate = crfMAX_FLASH_TASKS;
+ }
+
+ /* Create the queue used to pass data between the co-routines. */
+ xFlashQueue = xQueueCreate( crfQUEUE_LENGTH, sizeof( UBaseType_t ) );
+
+ if( xFlashQueue )
+ {
+ /* Create uxNumberToCreate 'fixed delay' co-routines. */
+ for( uxIndex = 0; uxIndex < uxNumberToCreate; uxIndex++ )
+ {
+ xCoRoutineCreate( prvFixedDelayCoRoutine, crfFIXED_DELAY_PRIORITY, uxIndex );
+ }
+
+ /* Create the 'flash' co-routine. */
+ xCoRoutineCreate( prvFlashCoRoutine, crfFLASH_PRIORITY, crfFLASH_INDEX );
+ }
+}
+/*-----------------------------------------------------------*/
+
+static void prvFixedDelayCoRoutine( CoRoutineHandle_t xHandle, UBaseType_t uxIndex )
+{
+/* Even though this is a co-routine the xResult variable does not need to be
+static as we do not need it to maintain its state between blocks. */
+BaseType_t xResult;
+/* The uxIndex parameter of the co-routine function is used as an index into
+the xFlashRates array to obtain the delay period to use. */
+static const TickType_t xFlashRates[ crfMAX_FLASH_TASKS ] = { 150 / portTICK_PERIOD_MS,
+ 200 / portTICK_PERIOD_MS,
+ 250 / portTICK_PERIOD_MS,
+ 300 / portTICK_PERIOD_MS,
+ 350 / portTICK_PERIOD_MS,
+ 400 / portTICK_PERIOD_MS,
+ 450 / portTICK_PERIOD_MS,
+ 500 / portTICK_PERIOD_MS };
+
+ /* Co-routines MUST start with a call to crSTART. */
+ crSTART( xHandle );
+
+ for( ;; )
+ {
+ /* Post our uxIndex value onto the queue. This is used as the LED to
+ flash. */
+ crQUEUE_SEND( xHandle, xFlashQueue, ( void * ) &uxIndex, crfPOSTING_BLOCK_TIME, &xResult );
+
+ if( xResult != pdPASS )
+ {
+ /* For the reasons stated at the top of the file we should always
+ find that we can post to the queue. If we could not then an error
+ has occurred. */
+ xCoRoutineFlashStatus = pdFAIL;
+ }
+
+ crDELAY( xHandle, xFlashRates[ uxIndex ] );
+ }
+
+ /* Co-routines MUST end with a call to crEND. */
+ crEND();
+}
+/*-----------------------------------------------------------*/
+
+static void prvFlashCoRoutine( CoRoutineHandle_t xHandle, UBaseType_t uxIndex )
+{
+/* Even though this is a co-routine the variable do not need to be
+static as we do not need it to maintain their state between blocks. */
+BaseType_t xResult;
+UBaseType_t uxLEDToFlash;
+
+ /* Co-routines MUST start with a call to crSTART. */
+ crSTART( xHandle );
+ ( void ) uxIndex;
+
+ for( ;; )
+ {
+ /* Block to wait for the number of the LED to flash. */
+ crQUEUE_RECEIVE( xHandle, xFlashQueue, &uxLEDToFlash, portMAX_DELAY, &xResult );
+
+ if( xResult != pdPASS )
+ {
+ /* We would not expect to wake unless we received something. */
+ xCoRoutineFlashStatus = pdFAIL;
+ }
+ else
+ {
+ /* We received the number of an LED to flash - flash it! */
+ vParTestToggleLED( uxLEDToFlash );
+ }
+ }
+
+ /* Co-routines MUST end with a call to crEND. */
+ crEND();
+}
+/*-----------------------------------------------------------*/
+
+BaseType_t xAreFlashCoRoutinesStillRunning( void )
+{
+ /* Return pdPASS or pdFAIL depending on whether an error has been detected
+ or not. */
+ return xCoRoutineFlashStatus;
+}
+
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