My application uses a DS1820 (onewire interface) on parasite power.
Without parasite power (3rd wire connected to +5V), it works fine but I get 00AAh reading when using parasite power.
Some questions :
Which pullup output port setting is used by the OneWire driver ?
Is it possible to instruct the OneWire driver to pull the output port high during a long(er) time interval ? (if yes, how ?)
When cerbuino came out - I beat my head against a wall trying to get it to work with parasitic power… never got it work. I had a glimmer of hope - I suspect the answer is in the timing/dwell time to query the DS1820.