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New NEC port - work in progress.
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Richard Barry
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298
Demo/NEC_V850ES_Fx3_IAR/LEDtoggle/LED.c
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298
Demo/NEC_V850ES_Fx3_IAR/LEDtoggle/LED.c
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/*
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FreeRTOS.org V5.1.1 - Copyright (C) 2003-2008 Richard Barry.
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This file is part of the FreeRTOS.org distribution.
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FreeRTOS.org is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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||||
(at your option) any later version.
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FreeRTOS.org is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FreeRTOS.org; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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A special exception to the GPL can be applied should you wish to distribute
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||||
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||
the source code for any proprietary components. See the licensing section
|
||||
of http://www.FreeRTOS.org for full details of how and when the exception
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||||
can be applied.
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||||
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***************************************************************************
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***************************************************************************
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* *
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* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
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* and even write all or part of your application on your behalf. *
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||||
* See http://www.OpenRTOS.com for details of the services we provide to *
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* expedite your project. *
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* *
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***************************************************************************
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***************************************************************************
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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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||||
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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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* This is a simple LED toggle test for the V850ES/Fx3.
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*
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* Creates two task that control one LED each.
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*
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* The first task toggles a LED with a frequency of 1Hz by using the vTaskDelay
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* function. So the task is yielded for 1 seconed after each LED switch.
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*
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* The second LED also starts with a toggling frequency of 1Hz but this frequency
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* can be increased by pushing the switch button conected to pin INTP0.
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* When the switch is pushed it is detected by an interrupt. When the interrupt
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* occurs a flag is set in the ISR and sent to the third task by using a queue.
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* Therefore the xQueueSendFromISR() function is called from within the ISR to
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* write the flag value to the queue. The task uses the xQueueReceive() function
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* to read the flag value from the queue.
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* If the flag value changed from the last task activation the yield time for the
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* second LED is incremented by 100ms. If the yield time reaches a time greater
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* then 3 seconds it is set back to 1 second within task 3.
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*
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* Also a check function is implemented to check if the task still run properly
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*/
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/* Scheduler include files. */
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#include "FreeRTOS.h"
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#include "task.h"
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/* Demo program include files. */
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#include "LED.h"
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#include "queue.h"
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#include "print.h"
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#define LEDToggleSTACK_SIZE (( unsigned portSHORT ) configMINIMAL_STACK_SIZE)
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#define SwitchSTACK_SIZE (( unsigned portSHORT ) configMINIMAL_STACK_SIZE)
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#define LED_NUMBER_OF_TASKS 2
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/* LED toggle wait time and check definitions */
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static portTickType LED1_Wait_Time = 1000;
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static portTickType LED2_Wait_Time = 1000;
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static portTickType SWITCH_Wait_Time = 50;
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/* Task function prototypes */
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static void vLEDToggleTask1 ( void *pvParameters );
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static void vLEDToggleTask2 ( void *pvParameters );
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static void vSWITCHDelayTask ( void *pvParameters );
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/* Port Initialization for LED's and Switch */
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static void prvLEDInit(void);
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/* Switch press counter */
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static unsigned portSHORT usClick = 0;
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/* Queue used for LED02 toggle*/
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static xQueueHandle xSwitchQueue;
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/*xQUEUE *xLEDQueue;*/
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static volatile unsigned portSHORT usTask1Check = 0, usTask2Check = 0, usTask3Check = 0, usLEDQueue = 0;
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void vStartLEDToggleTasks( unsigned portBASE_TYPE uxPriority )
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{
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const unsigned portBASE_TYPE uxQueueSize = 4;
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prvLEDInit();
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/* Create the queue used by the Switch ISR and the second task. */
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xSwitchQueue = xQueueCreate( uxQueueSize, ( unsigned portBASE_TYPE ) sizeof( unsigned portSHORT ) );
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/* create 2 LED toggle Tasks */
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xTaskCreate(vLEDToggleTask1, "LEDTog1", LEDToggleSTACK_SIZE, ( void * ) &(usTask1Check), uxPriority, NULL );
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xTaskCreate(vLEDToggleTask2, "LEDTog2", LEDToggleSTACK_SIZE, ( void * ) &(usTask2Check), uxPriority, NULL );
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xTaskCreate(vSWITCHDelayTask, "SWITCH", SwitchSTACK_SIZE, ( void * ) &xSwitchQueue, (uxPriority+1), NULL );
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}
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/*---------------------------------------------------------------------------*/
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static void vLEDToggleTask1( void *pvParameters)
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{
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static portCHAR pcLED1old;
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static portCHAR LEDcounter1 = 0;
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portSHORT sError = pdFALSE;
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volatile unsigned portSHORT *pusTaskCheckVariable;
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const portCHAR * const pcTaskFailMsg = "ERROR: LED toggle failed.\r\n";
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pusTaskCheckVariable = ( unsigned portSHORT * ) pvParameters;
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for(;;)
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{
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pcLED1old = LED01;
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LED01 = ~LED01;
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LEDcounter1++;
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vTaskDelay( LED1_Wait_Time );
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/* toggle the LED01 */
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if(pcLED1old == LED01)
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{
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/* an error has occured */
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vPrintDisplayMessage( &pcTaskFailMsg );
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sError = pdTRUE;
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}
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if(sError != pdTRUE)
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{
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/* If a LED toggle has been made, increment the check
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variable so we know this task is still running okay. */
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( *pusTaskCheckVariable )++;
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}
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}
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}
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/*-----------------------------------------------------------*/
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static void vLEDToggleTask2( void *pvParameters)
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{
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static portCHAR pcLED2old;
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portSHORT sError = pdFALSE;
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volatile unsigned portSHORT *pusTaskCheckVariable;
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const portCHAR * const pcTaskFailMsg = "ERROR: LED toggle failed.\r\n";
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pusTaskCheckVariable = ( unsigned portSHORT * ) pvParameters;
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for(;;)
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{
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pcLED2old = LED02;
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/* toggle the LED02 */
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LED02 = ~LED02;
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vTaskDelay( LED2_Wait_Time );
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if(pcLED2old == LED02)
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{
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/* an error has occured */
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vPrintDisplayMessage( &pcTaskFailMsg );
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sError = pdTRUE;
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}
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if(sError != pdTRUE)
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{
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/* If a LED toggle has been made, increment the check
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variable so we know this task is still running okay. */
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( *pusTaskCheckVariable )++;
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}
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}
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}
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/*-----------------------------------------------------------*/
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static void vSWITCHDelayTask( void *pvParameters)
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{
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unsigned portSHORT usData, usDataOld = 0;
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xQueueHandle *pxQueue;
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pxQueue = ( xQueueHandle * ) pvParameters;
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for(;;)
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{
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if( xQueueReceive( *pxQueue, &usData, ( portTickType ) 0 ) == pdPASS )
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{
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if (usData != usDataOld)
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{
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LED2_Wait_Time += 100;
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if(LED2_Wait_Time >= 3000)
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{
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LED2_Wait_Time = 1000;
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}
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}
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usDataOld = usData;
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}
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vTaskDelay( SWITCH_Wait_Time );
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/* increment check variable whenever the task gets active */
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usTask3Check++;
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}
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}
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portBASE_TYPE xAreLEDToggleTaskStillRunning( void )
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{
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/*
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* Keep a history of the check variables so we know if they have been incremented
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* since the last call.
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*/
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static unsigned portSHORT usLastTask1Check = 0;
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static unsigned portSHORT usLastTask2Check = 0;
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static unsigned portSHORT usLastTask3Check = 0;
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portBASE_TYPE xReturn = pdTRUE;
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/* Check the LED toggle tasks are still running by ensuring their check variables
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* are still incrementing.
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*/
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if(( usTask1Check == usLastTask1Check )||(usLastTask2Check == usTask2Check)||(usLastTask3Check == usTask3Check))
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{
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/* The check has not incremented so an error exists. */
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xReturn = pdFALSE;
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}
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usLastTask1Check = usTask1Check;
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usLastTask2Check = usTask2Check;
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usLastTask3Check = usTask3Check;
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return xReturn;
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}
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/*-----------------------------------------------------------*/
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static void prvLEDInit(void)
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{
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INTR0 = 0x00;
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INTR1 = 0x00;
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INTR3L = 0x00;
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INTR3H = 0x00;
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INTR4 = 0x00;
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INTR6L = 0x00;
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INTR6H = 0x00;
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INTR8 = 0x00;
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INTR9H = 0x00;
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INTF0 = 0x00;
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INTF1 = 0x00;
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INTF3L = 0x00;
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INTF3H = 0x00;
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INTF4 = 0x00;
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INTF6L = 0x00;
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INTF6H = 0x00;
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INTF8 = 0x00;
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INTF9H = 0x00;
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/* LED Port Initialization */
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// PCM = 0x00;
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PMCM = 0xF2;
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PMCCM = 0x00;
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/* Switch Pin Initialization */
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/* INTP0 Setting */
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PMK0 = 1; /* INTP0 disable */
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PIF0 = 0; /* INTP0 IF clear */
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/* Set INTP0 lowest priority */
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PIC0 |= 0x07;
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INTR0 |= 0x00;
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INTF0 |= 0x08;
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/* INTP0 pin set */
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PFC0 &= 0xF7;
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PFCE0 &= 0xF7;
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PMC0 |= 0x08;
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PIF0 = 0; /* INTP0 IF clear */
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PMK0 = 0; /* INTP0 enable */
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}
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/*-----------------------------------------------------------*/
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/* Switch ISR */
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#pragma vector=INTP0_vector
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__interrupt void MD_INTP0(void)
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{
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/* Increment Switch pressed counter */
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usClick++;
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/* Use usClick to signalize a detected Interrupt for the vLEDToggleTask2
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* to toggle the LED02.
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*/
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xQueueSendFromISR( xSwitchQueue, &usClick, pdFALSE );
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}
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/*-----------------------------------------------------------*/
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61
Demo/NEC_V850ES_Fx3_IAR/LEDtoggle/LED.h
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61
Demo/NEC_V850ES_Fx3_IAR/LEDtoggle/LED.h
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@ -0,0 +1,61 @@
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/*
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FreeRTOS.org V5.1.1 - Copyright (C) 2003-2008 Richard Barry.
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This file is part of the FreeRTOS.org distribution.
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FreeRTOS.org is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
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FreeRTOS.org is distributed in the hope that it will be useful,
|
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with FreeRTOS.org; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||
the source code for any proprietary components. See the licensing section
|
||||
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||
can be applied.
|
||||
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
* *
|
||||
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
||||
* and even write all or part of your application on your behalf. *
|
||||
* See http://www.OpenRTOS.com for details of the services we provide to *
|
||||
* expedite your project. *
|
||||
* *
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
|
||||
Please ensure to read the configuration and relevant port sections of the
|
||||
online documentation.
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||
contact details.
|
||||
|
||||
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||
critical systems.
|
||||
|
||||
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||
licensing and training services.
|
||||
*/
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#ifndef LEDTOGGLE_TASKS_H
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#define LEDTOGGLE_TASKS_H
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void vStartLEDToggleTasks( unsigned portBASE_TYPE uxPriority );
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portBASE_TYPE xAreLEDToggleTaskStillRunning( void );
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/* LED Pin Configuration */
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static void prvLEDinit( void );
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#define LED01 PCM_bit.no3
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#define LED02 PCM_bit.no2
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#endif
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