diff options
| author | Yuval Adam <yuv.adm@gmail.com> | 2014-08-08 14:42:07 +0300 |
|---|---|---|
| committer | Yuval Adam <yuv.adm@gmail.com> | 2014-08-08 14:42:07 +0300 |
| commit | a6163888f3c56123b1db313743c6147ba498732c (patch) | |
| tree | ff7d15d991d1d09ba6cbc0cec80924f57445bfdd /third_party/FreeRTOS/Demo/Common/Full/flash.c | |
| parent | c3e4c9a25c2910d2d66d52215b3406b13d5b23d5 (diff) | |
Add third_party libs
Diffstat (limited to 'third_party/FreeRTOS/Demo/Common/Full/flash.c')
| -rw-r--r-- | third_party/FreeRTOS/Demo/Common/Full/flash.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/third_party/FreeRTOS/Demo/Common/Full/flash.c b/third_party/FreeRTOS/Demo/Common/Full/flash.c new file mode 100644 index 0000000..05e1e90 --- /dev/null +++ b/third_party/FreeRTOS/Demo/Common/Full/flash.c @@ -0,0 +1,166 @@ +/*
+ FreeRTOS V7.6.0 - Copyright (C) 2013 Real Time Engineers Ltd.
+ All rights reserved
+
+ VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
+
+ ***************************************************************************
+ * *
+ * FreeRTOS provides completely free yet professionally developed, *
+ * robust, strictly quality controlled, supported, and cross *
+ * platform software that has become a de facto standard. *
+ * *
+ * Help yourself get started quickly and support the FreeRTOS *
+ * project by purchasing a FreeRTOS tutorial book, reference *
+ * manual, or both from: http://www.FreeRTOS.org/Documentation *
+ * *
+ * Thank you! *
+ * *
+ ***************************************************************************
+
+ 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 from the following
+ link: http://www.freertos.org/a00114.html
+
+ 1 tab == 4 spaces!
+
+ ***************************************************************************
+ * *
+ * Having a problem? Start by reading the FAQ "My application does *
+ * not run, what could be wrong?" *
+ * *
+ * http://www.FreeRTOS.org/FAQHelp.html *
+ * *
+ ***************************************************************************
+
+ http://www.FreeRTOS.org - Documentation, books, training, latest versions,
+ license and Real Time Engineers Ltd. contact details.
+
+ 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.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
+ Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
+ licenses offer ticketed support, indemnification and 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!
+*/
+
+
+/**
+ * Creates eight tasks, each of which flash an LED at a different rate. The first
+ * LED flashes every 125ms, the second every 250ms, the third every 375ms, etc.
+ *
+ * The LED flash tasks provide instant visual feedback. They show that the scheduler
+ * is still operational.
+ *
+ * The PC port uses the standard parallel port for outputs, the Flashlite 186 port
+ * uses IO port F.
+ *
+ * \page flashC flash.c
+ * \ingroup DemoFiles
+ * <HR>
+ */
+
+/*
+Changes from V2.0.0
+
+ + Delay periods are now specified using variables and constants of
+ portTickType rather than unsigned long.
+
+Changes from V2.1.1
+
+ + The stack size now uses configMINIMAL_STACK_SIZE.
+ + String constants made file scope to decrease stack depth on 8051 port.
+*/
+
+#include <stdlib.h>
+
+/* Scheduler include files. */
+#include "FreeRTOS.h"
+#include "task.h"
+
+/* Demo program include files. */
+#include "partest.h"
+#include "flash.h"
+#include "print.h"
+
+#define ledSTACK_SIZE configMINIMAL_STACK_SIZE
+
+/* Structure used to pass parameters to the LED tasks. */
+typedef struct LED_PARAMETERS
+{
+ unsigned portBASE_TYPE uxLED; /*< The output the task should use. */
+ portTickType xFlashRate; /*< The rate at which the LED should flash. */
+} xLEDParameters;
+
+/* The task that is created eight times - each time with a different xLEDParaemtes
+structure passed in as the parameter. */
+static void vLEDFlashTask( void *pvParameters );
+
+/* String to print if USE_STDIO is defined. */
+const char * const pcTaskStartMsg = "LED flash task started.\r\n";
+
+/*-----------------------------------------------------------*/
+
+void vStartLEDFlashTasks( unsigned portBASE_TYPE uxPriority )
+{
+unsigned portBASE_TYPE uxLEDTask;
+xLEDParameters *pxLEDParameters;
+const unsigned portBASE_TYPE uxNumOfLEDs = 8;
+const portTickType xFlashRate = 125;
+
+ /* Create the eight tasks. */
+ for( uxLEDTask = 0; uxLEDTask < uxNumOfLEDs; ++uxLEDTask )
+ {
+ /* Create and complete the structure used to pass parameters to the next
+ created task. */
+ pxLEDParameters = ( xLEDParameters * ) pvPortMalloc( sizeof( xLEDParameters ) );
+ pxLEDParameters->uxLED = uxLEDTask;
+ pxLEDParameters->xFlashRate = ( xFlashRate + ( xFlashRate * ( portTickType ) uxLEDTask ) );
+ pxLEDParameters->xFlashRate /= portTICK_RATE_MS;
+
+ /* Spawn the task. */
+ xTaskCreate( vLEDFlashTask, "LEDx", ledSTACK_SIZE, ( void * ) pxLEDParameters, uxPriority, ( xTaskHandle * ) NULL );
+ }
+}
+/*-----------------------------------------------------------*/
+
+static void vLEDFlashTask( void *pvParameters )
+{
+xLEDParameters *pxParameters;
+
+ /* Queue a message for printing to say the task has started. */
+ vPrintDisplayMessage( &pcTaskStartMsg );
+
+ pxParameters = ( xLEDParameters * ) pvParameters;
+
+ for(;;)
+ {
+ /* Delay for half the flash period then turn the LED on. */
+ vTaskDelay( pxParameters->xFlashRate / ( portTickType ) 2 );
+ vParTestToggleLED( pxParameters->uxLED );
+
+ /* Delay for half the flash period then turn the LED off. */
+ vTaskDelay( pxParameters->xFlashRate / ( portTickType ) 2 );
+ vParTestToggleLED( pxParameters->uxLED );
+ }
+}
+
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