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Before changing headers to V6 and changing portLONG, portSHORt and portCHAR to their standard C types.
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Richard Barry
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20091005/Demo/MB96350_Softune_Dice_Kit/main.c
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20091005/Demo/MB96350_Softune_Dice_Kit/main.c
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/*
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FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd.
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
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Free Software Foundation and modified by the FreeRTOS exception.
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**NOTE** The exception to the GPL is included to allow you to distribute a
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combined work that includes FreeRTOS without being obliged to provide the
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source code for proprietary components outside of the FreeRTOS kernel.
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Alternative commercial license and support terms are also available upon
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request. See the licensing section of http://www.FreeRTOS.org for full
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license details.
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along
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with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
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Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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***************************************************************************
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* *
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* Looking for a quick start? Then check out the FreeRTOS eBook! *
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* See http://www.FreeRTOS.org/Documentation for details *
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* *
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***************************************************************************
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1 tab == 4 spaces!
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Please ensure to read the configuration and relevant port sections of the
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online documentation.
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http://www.FreeRTOS.org - Documentation, latest information, license and
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contact details.
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http://www.SafeRTOS.com - A version that is certified for use in safety
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critical systems.
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http://www.OpenRTOS.com - Commercial support, development, porting,
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licensing and training services.
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*/
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/*****
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*
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* See http://www.freertos.org/Documentation/FreeRTOS-documentation-and-book.html
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* for an introductory guide to using real time kernels, and FreeRTOS in
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* particular.
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*
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*****
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*
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* The DICE-KIT-16FX has two 7 segment displays and two buttons that can
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* generate interrupts. This example uses this IO as follows:
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*
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*
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* - Left 7 segment display -
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*
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* 7 'flash' tasks are created, each of which toggles a single segment of the
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* left display. Each task executes at a fixed frequency, with a different
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* frequency being used by each task.
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*
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* When button SW2 is pressed an interrupt is generated that wakes up a 'dice'
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* task. The dice task suspends the 7 tasks that are accessing the left display
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* before simulating a dice being thrown by generating a random number between
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* 1 and 6. After the number has been generated the task sleeps for 5 seconds,
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* if SW2 is pressed again within the 5 seconds another random number is
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* generated, if SW2 is not pressed within the 5 seconds then the 7 tasks are
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* un-suspended and will once again toggle the segments of the left hand display.
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*
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*
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* - Right 7 segment display -
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*
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* Control of the right side 7 segment display is very similar to that of the
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* left, except co-routines are used to toggle the segments instead of tasks,
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* and button SW3 is used instead of SW2.
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*
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*
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* - Notes -
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*
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* Only one dice task is actually defined. Two instances of this single
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* definition are created, the first to simulate a dice being thrown on the left
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* display, and the other to simulate a dice being thrown on the right display.
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* The task parameter is used to let the dice tasks know which display to
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* control.
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*
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* Both dice tasks and the flash tasks operate completely independently under
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* the control of FreeRTOS. 11 tasks and 7 co-routines are created in total,
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* including the idle task.
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*
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* The co-routines all execute within a single low priority task.
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*
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*
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*
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* When this demo is executing as expected:
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*
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* + Every segment of both displays will toggle at a fixed frequency - with each
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* segment using a different frequency.
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* + When a button is pushed the segment toggling will temporarily stop and the
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* dice 'throw' will start whereby the display will show a fast changing random
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* number for a few seconds before the dice value is chosen and displayed.
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* + If the button is not pushed again within five seconds of the dice value being
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* displayed the segment toggling will commence again.
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*
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*****/
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/* Kernel includes. */
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#include "FreeRTOS.h"
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#include "Task.h"
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/* Demo includes. */
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#include "DiceTask.h"
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#include "ParTest.h"
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#include "Flash.h"
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/* The priority at which the dice task execute. */
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#define mainDICE_PRIORITY ( tskIDLE_PRIORITY + 2 )
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/*
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* Sets up the MCU IO for the 7 segment displays and the button inputs.
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*/
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static void prvSetupHardware( void );
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/*
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* The function that creates the flash tasks and co-routines (the tasks and
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* co-routines that toggle the 7 segment display segments.
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*/
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extern vCreateFlashTasksAndCoRoutines( void );
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/*-----------------------------------------------------------*/
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void main( void )
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{
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/* Setup the MCU IO. */
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prvSetupHardware();
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/* Create the tasks and co-routines that toggle the display segments. */
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vCreateFlashTasksAndCoRoutines();
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/* Create a 'dice' task to control the left hand display. */
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xTaskCreate( vDiceTask, ( signed char * ) "Dice1", configMINIMAL_STACK_SIZE, ( void * ) configLEFT_DISPLAY, mainDICE_PRIORITY, NULL );
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/* Create a 'dice' task to control the right hand display. */
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xTaskCreate( vDiceTask, ( signed char * ) "Dice2", configMINIMAL_STACK_SIZE, ( void * ) configRIGHT_DISPLAY, mainDICE_PRIORITY, NULL );
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/* Start the scheduler running. */
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vTaskStartScheduler();
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/* If this loop is executed then there was insufficient heap memory for the
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idle task to be created - causing vTaskStartScheduler() to return. */
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while( 1 );
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}
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/*-----------------------------------------------------------*/
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static void prvSetupHardware( void )
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{
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/* Setup interrupt hardware - interrupts are kept disabled for now to
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prevent any interrupts attempting to cause a context switch before the
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scheduler has been started. */
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InitIrqLevels();
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portDISABLE_INTERRUPTS();
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__set_il( 7 );
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/* Set Port3 as output (7Segment Display). */
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DDR03 = 0xff;
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/* Use Port 5 as I/O-Port. */
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ADER1 = 0;
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PDR05 = 0x7f;
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/* Set Port5 as output (7Segment Display). */
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DDR05 = 0xff;
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/* Disable inputs on the following ports. */
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PIER02 = 0x00;
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PDR02 = 0x00;
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DDR02 = 0xff;
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PIER03 = 0x00;
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PDR03 = 0xff;
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PIER05 = 0x00;
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PDR05 = 0x00;
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PIER06 = 0x00;
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PDR06 = 0x00;
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DDR06 = 0xff;
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/* Enable P00_0/INT8 and P00_1/INT9 as input. */
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PIER00 = 0x03;
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/* Enable external interrupt 8. */
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PIER00_IE0 = 1;
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/* LB0, LA0 = 11 -> falling edge. */
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ELVRL1_LB8 = 1;
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ELVRL1_LA8 = 1;
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/* Reset and enable the interrupt request. */
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EIRR1_ER8 = 0;
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ENIR1_EN8 = 1;
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/* Enable external interrupt 9. */
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PIER00_IE1 = 1;
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/* LB1, LA1 = 11 -> falling edge. */
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ELVRL1_LB9 = 1;
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ELVRL1_LA9 = 1;
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/* Reset and enable the interrupt request. */
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EIRR1_ER9 = 0;
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ENIR1_EN9 = 1;
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}
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