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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [MB96340_Softune/] [FreeRTOS_96348hs_SK16FX100PMC/] [Src/] [watchdog/] [watchdog.c] - Blame information for rev 609

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Line No. Rev Author Line
1 584 jeremybenn
/* THIS SAMPLE CODE IS PROVIDED AS IS AND IS SUBJECT TO ALTERATIONS. FUJITSU */
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/* MICROELECTRONICS ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR */
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/* ELIGIBILITY FOR ANY PURPOSES.                                             */
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/*                 (C) Fujitsu Microelectronics Europe GmbH                  */
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/*------------------------------------------------------------------------
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  watchdog.c
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  - This file contains the function deefinition for hardware watchdog.
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-------------------------------------------------------------------------*/
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#include "mb96348hs.h"
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#include "FreeRTOS.h"
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#include "task.h"
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#include "watchdog.h"
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/*---------------------------------------------------------------------------
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 * Setup Watchdog
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 *---------------------------------------------------------------------------*/
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#if WATCHDOG != WTC_NONE
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void InitWatchdog( void )
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{
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        WDTC_WTI = WTC_PER_2_23;        /* 2^23/CLKWT */
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        WDTC_WTCS = WTC_CLKMC;          /* CLKWT=CLKMC, Watchdog expiration delay = 2.097s @ 4MHZ CLKMC*/
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        WDTCP = 0x00;                           /* Activate Watchdog, Clear Pattern 0x00 */
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}
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#endif
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/*---------------------------------------------------------------------------
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 * The below task clears the watchdog and blocks itself for WTC_CLR_PER ticks.
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 *---------------------------------------------------------------------------*/
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#if WATCHDOG == WTC_IN_TASK
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static void prvWatchdogTask( void *pvParameters )
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{
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        const portTickType      xFrequency = WTC_CLR_PER;
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        portTickType            xLastWakeTime;
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        ( void ) pvParameters;
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        /* Get currrent tick count */
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        xLastWakeTime = xTaskGetTickCount();
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        for( ;; )
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        {
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                /* Get currrent tick count */
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                xLastWakeTime = xTaskGetTickCount();
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                Kick_Watchdog();
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                /* Block the task for WTC_CLR_PER ticks (1s) at watchdog overflow period of WTC_PER_2_23 CLKMC cycles */
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                vTaskDelayUntil( &xLastWakeTime, xFrequency );
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        }
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}
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#endif
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/*---------------------------------------------------------------------------
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 * The below function creates hardware watchdog task.
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 *---------------------------------------------------------------------------*/
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#if WATCHDOG == WTC_IN_TASK
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void vStartWatchdogTask( unsigned portBASE_TYPE uxPriority )
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{
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        xTaskCreate( prvWatchdogTask, (signed portCHAR *) "KickWTC", portMINIMAL_STACK_SIZE, ( void * ) NULL, uxPriority, ( xTaskHandle * ) NULL );
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}
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#endif

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