mirror of
https://github.com/oopuuu/zTC1.git
synced 2025-12-17 15:38:14 +08:00
122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
/**
|
|
******************************************************************************
|
|
* @file MicoDriverWdg.c
|
|
* @author William Xu
|
|
* @version V1.0.0
|
|
* @date 05-May-2014
|
|
* @brief This file provide WDG driver functions.
|
|
******************************************************************************
|
|
* UNPUBLISHED PROPRIETARY SOURCE CODE
|
|
* Copyright (c) 2016 MXCHIP Inc.
|
|
*
|
|
* The contents of this file may not be disclosed to third parties, copied or
|
|
* duplicated in any form, in whole or in part, without the prior written
|
|
* permission of MXCHIP Corporation.
|
|
******************************************************************************
|
|
*/
|
|
|
|
|
|
#include "mico_platform.h"
|
|
#include "mico_rtos.h"
|
|
#include "common.h"
|
|
#include "debug.h"
|
|
|
|
#include "platform.h"
|
|
#include "platform_peripheral.h"
|
|
|
|
/******************************************************
|
|
* Constants
|
|
******************************************************/
|
|
|
|
/******************************************************
|
|
* Enumerations
|
|
******************************************************/
|
|
|
|
/******************************************************
|
|
* Type Definitions
|
|
******************************************************/
|
|
|
|
/******************************************************
|
|
* Structures
|
|
******************************************************/
|
|
|
|
/******************************************************
|
|
* Variables Definitions
|
|
******************************************************/
|
|
/******************************************************
|
|
* Function Declarations
|
|
******************************************************/
|
|
|
|
/******************************************************
|
|
* Function Definitions
|
|
******************************************************/
|
|
/* Wecan Chen Modify 2015.06.16 */
|
|
OSStatus platform_watchdog_init( uint32_t timeout_ms )
|
|
{
|
|
// PLATFORM_TO_DO
|
|
#ifndef MICO_DISABLE_WATCHDOG
|
|
OSStatus err = kNoErr;
|
|
uint32_t reloadTick; // Magicoe change to Uint32_t
|
|
uint32_t wdtFreq;
|
|
|
|
/* Enable the power to the WDT Oscillator */
|
|
Chip_SYSCON_PowerUp(SYSCON_PDRUNCFG_PD_WDT_OSC);
|
|
|
|
/* The WDT divides the input frequency into it by 4 */
|
|
wdtFreq = Chip_Clock_GetWDTOSCRate() / 4;
|
|
|
|
reloadTick = wdtFreq*timeout_ms/1000;
|
|
|
|
/* Initialize WWDT (also enables WWDT clock) */
|
|
Chip_WWDT_Init(LPC_WWDT);
|
|
|
|
/* Set counter reload value to obtain 250ms watchdog TimeOut. */
|
|
Chip_WWDT_SetTimeOut(LPC_WWDT, reloadTick);
|
|
|
|
/* Configure WWDT to reset on timeout */
|
|
Chip_WWDT_SetOption(LPC_WWDT, WWDT_WDMOD_WDRESET);
|
|
|
|
/* Clear watchdog warning and timeout interrupts */
|
|
Chip_WWDT_ClearStatusFlag(LPC_WWDT, WWDT_WDMOD_WDTOF|WWDT_WDMOD_WDINT);
|
|
|
|
/* Start watchdog */
|
|
Chip_WWDT_Start(LPC_WWDT);
|
|
|
|
exit:
|
|
return err;
|
|
#else
|
|
UNUSED_PARAMETER( timeout_ms );
|
|
return kUnsupportedErr;
|
|
#endif
|
|
}
|
|
|
|
OSStatus MicoWdgFinalize( void )
|
|
{
|
|
// PLATFORM_TO_DO
|
|
Chip_WWDT_DeInit(LPC_WWDT);
|
|
return kNoErr;
|
|
}
|
|
|
|
OSStatus platform_watchdog_kick( void )
|
|
{
|
|
#ifndef MICO_DISABLE_WATCHDOG
|
|
Chip_WWDT_Feed(LPC_WWDT); // Magicoe IWDG_ReloadCounter();
|
|
return kNoErr;
|
|
#else
|
|
return kUnsupportedErr;
|
|
#endif
|
|
}
|
|
|
|
bool platform_watchdog_check_last_reset( void )
|
|
{
|
|
#ifndef MICO_DISABLE_WATCHDOG
|
|
if (Chip_WWDT_GetStatus(LPC_WWDT) & WWDT_WDMOD_WDTOF) {
|
|
/* Clear the flag and return */
|
|
Chip_WWDT_ClearStatusFlag(LPC_WWDT, WWDT_WDMOD_WDTOF);
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
return false;
|
|
}
|