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First pass demo for 78K0R.
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Richard Barry
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294
Demo/NEC_78K0R_IAR/main.c
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294
Demo/NEC_78K0R_IAR/main.c
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/*
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FreeRTOS.org V5.1.1 - Copyright (C) 2003-2009 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
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the source code for any proprietary components. See the licensing section
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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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* 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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http://www.OpenRTOS.com - Commercial support, development, porting,
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licensing and training services.
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*/
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/* Standard includes. */
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#include <stdlib.h>
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#include <string.h>
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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 file headers. */
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#include "int78K0R.h"
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#include "PollQ.h"
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#include "LED.h"
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#include "print.h"
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#include "semtest.h"
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/*
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* Priority definitions for most of the tasks in the demo application. Some
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* tasks just use the idle priority.
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*/
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#define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
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#define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 1 )
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#define mainSEMTEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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#define mainLED_TOGGLE_PRIORITY ( tskIDLE_PRIORITY + 1 )
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/* The period between executions of the check task. */
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#define mainNO_ERROR_TOGGLE_PERIOD ( ( portTickType ) 3000 / portTICK_RATE_MS )
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#define mainERROR_TOGGLE_PERIOD ( ( portTickType ) 500 / portTICK_RATE_MS )
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/*
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* 78K0R/Kx3 Option Byte Definition
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* watchdog disabled, LVI enabled, OCD interface enabled
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*/
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__root __far const unsigned portCHAR OptionByte[OPT_BYTES_SIZE] @ 0x00C0 =
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{
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WATCHDOG_DISABLED, LVI_ENABLED, RESERVED_FF, OCD_ENABLED
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};
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/* Security Byte Definition */
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__root __far const unsigned portCHAR SecuIDCode[SECU_ID_SIZE] @ 0x00C4 =
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{
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
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};
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/* The task function for the "Check" task. */
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static void vErrorChecks( void *pvParameters );
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/* 78K0R/Kx3 low level init Initialization of the System Clock */
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int __low_level_init(void);
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extern void vRegTest1( void *pvParameters );
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extern void vRegTest2( void *pvParameters );
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static short sRegTestStatus = pdPASS;
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portSHORT main( void )
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{
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/* Create the standard demo tasks. */
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vStartIntegerMathTasks( tskIDLE_PRIORITY );
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vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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vStartSemaphoreTasks(mainSEMTEST_PRIORITY);
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/* Create the tasks defined within this file. */
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xTaskCreate( vErrorChecks, "Check", configMINIMAL_STACK_SIZE, (void*)0x12345678, mainCHECK_TASK_PRIORITY, NULL );
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xTaskCreate( vRegTest1, "Reg1", configMINIMAL_STACK_SIZE, NULL, 0, NULL );
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xTaskCreate( vRegTest2, "Reg2", configMINIMAL_STACK_SIZE, NULL, 0, NULL );
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vPrintInitialise();
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/* In this port, to use preemptive scheduler define configUSE_PREEMPTION
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* as 1 in FreeRTOSconfig.h. To use the cooperative scheduler define
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* configUSE_PREEMPTION as 0.
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*/
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vTaskStartScheduler();
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return 0;
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}
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/*-----------------------------------------------------------*/
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static void vErrorChecks( void *pvParameters )
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{
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portTickType xToggleRate = mainNO_ERROR_TOGGLE_PERIOD, xLastWakeTime;
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/* The pointer will only actually be either 3 or 2 bytes, depending on the
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memory model. */
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if( pvParameters != ( void * ) 0x12345678 )
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{
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xToggleRate = mainERROR_TOGGLE_PERIOD;
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}
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xLastWakeTime = xTaskGetTickCount();
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/* Cycle for ever, delaying then checking all the other tasks are still
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operating without error. */
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for( ;; )
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{
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vTaskDelayUntil( &xLastWakeTime, xToggleRate );
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if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
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{
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xToggleRate = mainERROR_TOGGLE_PERIOD;
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}
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if( xArePollingQueuesStillRunning() != pdTRUE)
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{
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xToggleRate = mainERROR_TOGGLE_PERIOD;
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}
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if( xAreSemaphoreTasksStillRunning() != pdTRUE)
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{
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xToggleRate = mainERROR_TOGGLE_PERIOD;
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}
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if( sRegTestStatus != pdPASS )
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{
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xToggleRate = mainERROR_TOGGLE_PERIOD;
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}
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/* Toggle the LED. */
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LED01 = !LED01;
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}
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}
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/*-----------------------------------------------------------*/
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int __low_level_init(void)
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{
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unsigned portCHAR resetflag = RESF;
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portDISABLE_INTERRUPTS();
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/*
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* Clock Configuration:
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* In this port, to use the internal high speed clock source of the microcontroller
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* define the configCLOCK_SOURCE as 1 in FreeRTOSConfig.h. To use an external
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* clock define configCLOCK_SOURCE as 0.
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*/
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#if configCLOCK_SOURCE == 1
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{
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/*
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* Set XT1 and XT2 in Input Port Mode
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* Set X1 and X2 in Input Port Mode
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* High speed oszillation frequency 2MHz <= fMX <= 10MHz
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*/
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CMC = 0x00;
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/* X1 external oszillation stopped */
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MSTOP = 1;
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/* enable internal high speed oszillation */
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HIOSTOP = 0;
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MCM0 = 0;
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/* stop internal subsystem clock */
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XTSTOP = 1;
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/* Set clock speed */
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CSS = 0;
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CKC &= (unsigned portCHAR)~0x07;
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CKC |= 0x00;
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}
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#else
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{
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/*
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* XT1 and XT2 pin in input port mode
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* X1 and X2 pin in crystal resonator mode
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* High speed oszillation frequency 10MHz < fMX <= 20MHz
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*/
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CMC = 0x41;
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/* Set oscillation stabilization time */
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OSTS = 0x07;
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/* Set speed mode: fMX > 10MHz for Flash memory high speed operation */
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OSMC = 0x01;
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/*
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* Start up X1 oscillator operation
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* Internal high-speed oscillator operating
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*/
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MSTOP = 0;
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/* Check oscillation stabilization time status */
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while(OSTC < 0x07)
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{
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/* wait until X1 clock stabilization time */
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portNOP();
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}
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/* Switch CPU clock to X1 oscillator */
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MCM0 = 1;
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while(MCS != 1)
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{
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/* wait until CPU and peripherals operate with fX1 clock */
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portNOP();
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}
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/* Stop the internal high-speed oscillator operation */
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HIOSTOP = 1;
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/* Stop the XT1 oscillator operation */
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XTSTOP = 1;
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/*
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* operating frequency f = fx
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* Change clock generator setting, if necessary
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*/
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CKC &= 0xF8;
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/* From here onwards the X1 oscillator is supplied to the CPU */
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}
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#endif
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/* LED Port Initialization - set Port Register */
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P7 = 0x80;
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/* Set Port Mode Register */
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PM7 = 0x3F;
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/* Switch Pin Initialization - enable pull-up resistor */
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PU12_bit.no0 = 1;
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/* INTP0 disable */
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PMK0 = 1;
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/* INTP0 IF clear */
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PIF0 = 0;
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EGN0_bit.no0 = 1;
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/* INTP0 priority low */
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PPR10 = 0;
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PPR00 = 1;
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/* enable ext. INTP0 interrupt */
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PMK0 = 0;
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return pdTRUE;
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}
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/*-----------------------------------------------------------*/
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void vRegTestError( void )
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{
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sRegTestStatus = pdFAIL;
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for( ;; );
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}
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