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Add inter-bit delay #107

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Add inter-bit delay #107

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6 changes: 6 additions & 0 deletions OneWire.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -217,6 +217,7 @@ void OneWire::write_bit(uint8_t v)
interrupts();
delayMicroseconds(5);
}
delayMicroseconds(bit_delay);
}

//
Expand All @@ -238,6 +239,7 @@ uint8_t OneWire::read_bit(void)
r = DIRECT_READ(reg, mask);
interrupts();
delayMicroseconds(53);
delayMicroseconds(bit_delay);
return r;
}

Expand Down Expand Up @@ -318,6 +320,10 @@ void OneWire::depower()
interrupts();
}

void OneWire::set_bit_delay(unsigned int d) {
bit_delay = d;
}

#if ONEWIRE_SEARCH

//
Expand Down
3 changes: 3 additions & 0 deletions OneWire.h
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,8 @@ class OneWire
IO_REG_TYPE bitmask;
volatile IO_REG_TYPE *baseReg;

unsigned int bit_delay = 0;

#if ONEWIRE_SEARCH
// global search state
unsigned char ROM_NO[8];
Expand Down Expand Up @@ -111,6 +113,7 @@ class OneWire
// someone shorts your bus.
void depower(void);

void set_bit_delay(unsigned int d);
#if ONEWIRE_SEARCH
// Clear the search state so that if will start from the beginning again.
void reset_search();
Expand Down