I suppose that overdrive isn’t included in the OneWire lib? Would it be possible to add? Just duplicates of the WriteBit, WriteByte, ReadBit, ReadByte and Reset but with shorter timing…
We want to move our vending application from the PC to a Cobra. On the PC we currently use standard speed, but it takes around 4 seconds to do transaction due to all the writing required to write the iButton and a secure OneWire device(DS28E01).
The secure device takes the longest because it requires reading one page for calculating the key plus writing a 160bit key back to the DS28E01 to authenticate the write on top of the usual reading and writing commands…
Four seconds doesn’t sound like much, untill there is a que of customers infront of you…
So? Overdrive?
Thanks,
Errol