OneWire in Due

Hardware Arduino Due
22

Though read_bit() seemed to be working, I modified it as well to match the maple version. The two sketches seemed to work with the slimmer version. NO delay(1)'s required.

uint8_t OneWire::read_bit(void)
{
	IO_REG_TYPE mask=bitmask;
	volatile IO_REG_TYPE *reg IO_REG_ASM = baseReg;
	uint8_t r;

	DIRECT_MODE_OUTPUT(reg, mask);
	DIRECT_WRITE_LOW(reg, mask);
	delayMicroseconds(5);
	DIRECT_MODE_INPUT(reg, mask);	// let pin float, pull up will raise
	delayMicroseconds(5);
	r = DIRECT_READ(reg, mask);
	delayMicroseconds(60);
	return r;
}