From a6163888f3c56123b1db313743c6147ba498732c Mon Sep 17 00:00:00 2001 From: Yuval Adam Date: Fri, 8 Aug 2014 14:42:07 +0300 Subject: Add third_party libs --- third_party/FreeRTOS/Demo/Common/Full/flash.c | 166 ++++++++++++++++++++++++++ 1 file changed, 166 insertions(+) create mode 100644 third_party/FreeRTOS/Demo/Common/Full/flash.c (limited to 'third_party/FreeRTOS/Demo/Common/Full/flash.c') 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 + *
+ */ + +/* +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 + +/* 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 ); + } +} + -- cgit v1.3.1