wdt.h(3)

NAME
wdt.h -

Detailed Description

SYNOPSIS

  Defines
#define wdt_reset() __asm__ __volatile__ ('wdr')
#define _WD_PS3_MASK 0x00
#define _WD_CONTROL_REG WDTCR
#define _WD_CHANGE_BIT WDCE
#define _wdt_write(value)
#define wdt_disable()
#define wdt_enable(timeout) _wdt_write(timeout)
#define WDTO_15MS 0
#define WDTO_30MS 1
#define WDTO_60MS 2
#define WDTO_120MS 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

Define Documentation

  #define _wdt_write(value)

Value:

__asm__ __volatile__ (          'in __tmp_reg__,__SREG__' 't'            'cli' 't'            'wdr' 't'            'out %0,%1' 't'          'out __SREG__,__tmp_reg__' 't'           'out %0,%2'         : /* no outputs */          : 'I' (_SFR_IO_ADDR(_WD_CONTROL_REG)),         'r' (_BV(_WD_CHANGE_BIT) | _BV(WDE)),           'r' ((uint8_t) ((value & 0x08 ? _WD_PS3_MASK : 0x00) |             _BV(WDE) | (value & 0x07)) )         : 'r0'      )

Author

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