Aaeon PICO-APL1, Руководство пользователя

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Appendix A – Watchdog Timer Programming 63
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WDTSetBit(
TimerReg , UnitBit, Unit
);
// WDT output mode set to pulse
WDTSetBit(
TimerReg , ModeBit , ModeVal
);
// WDT output mode set to active low
WDTSetBit(
TimerReg , PolarityBit , PolarityVal
);
// WDT output pulse width is 25ms
WDTSetBit(
TimerReg , PSWidthBit , PSWidthVal
);
// Watchdog WDTRST# Enable
WDTSetBit(
DevReg , WDTRstBit, WDTRstVal
);
}
VOID
WDTClearTimeoutStatus()
{
WDTSetBit(
TimerReg , StatusBit, 1
);
}
*******************************************************************************
*******************************************************************************
VOID
WDTWriteByte(byte Register, byte Value)
{
IOWriteByte(Register, Value);
}
byte
WDTReadByte(byte Register)
{
return IOReadByte(Register);
}
VOID
WDTSetBit(byte Register, byte Bit, byte Val)
{
byte TmpValue;
TmpValue = WDTReadByte(Register);
TmpValue &= ~(1 << Bit);
TmpValue |= Val << Bit;
WDTWriteByte(Register, TmpValue);
}
*******************************************************************************