wdt_drv.h

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/* Copyright (c) 2009 Atmel Corporation. All rights reserved.
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#ifndef _WDT_DRV_H_
#define _WDT_DRV_H_

//_____ I N C L U D E S ____________________________________________________

#ifdef __GNUC__
   #include <avr/io.h>
   #include <avr/wdt.h>
#endif


//_____ M A C R O S ________________________________________________________


#define  Is_ext_reset()                ((MCUSR&(1<<EXTRF)) ? TRUE:FALSE)
#define  Ack_ext_reset()               (MCUSR= ~(1<<EXTRF))
#define  Is_POR_reset()                ((MCUSR&(1<<(MCUSR= ~(1<<PORF)))) ? TRUE:FALSE)
#define  Ack_POR_reset()               (MCUSR= ~(1<<PORF))
#define  Is_BOD_reset()                ((MCUSR&(1<<BORF)) ? TRUE:FALSE)
#define  Ack_BOD_reset()               (MCUSR= ~(1<<BORF))
#define  Is_wdt_reset()                ((MCUSR&(1<<WDRF)) ? TRUE:FALSE)
#define  Ack_wdt_reset()               (MCUSR= ~(1<<WDRF))
        
#define  Wdt_ack_interrupt()           (WDTCSR = (U8)(1<<WDIF))
#define  Is_wdt_interrupt()            (WDTCSR&(1<<WDIF) ? TRUE:FALSE)
#define  Is_not_wdt_interrupt()        (WDTCSR&(1<<WDIF) ? FALSE:TRUE)
#define  Is_wdt_early_warning()        (WDTCKD&(1<<WDEWIF) ? TRUE:FALSE)
#define  Is_not_wdt_early_warning()    (WDTCKD&(1<<WDEWIF) ? FALSE:TRUE)

#define  WDTO_16MS   0
#define  WDTO_32MS   1
#define  WDTO_64MS   2
#define  WDTO_125MS  3
#define  WDTO_250MS  4
#define  WDTO_500MS  5
#define  WDTO_1S     6
#define  WDTO_2S     7
#define  WDTO_4S     8
#define  WDTO_8S     9


void wdtdrv_disable(void);


void wdtdrv_enable( U8 timeout );


void wdtdrv_interrupt_enable( U8 timeout );


void wdtdrv_interrupt_reset_enable( U8 timeout );


#define Soft_reset()             {asm("jmp 0000");}


#endif  // _WDT_DRV_H_