Hello all, Here is an interesting wrinkle that is not really owfs, but is 1Wire-related, so I thought you might have some insight.
I'm using OW on an arduino using the OneWire Library, and checking repeatedly after issuing a T Convert command with a DS18B20 to determine exactly when data is ready. This begins with instantiation of a OneWire object, a reset, match/select, a T Convert, and then with a repeated read command. When this returns 1, the data is ready. The question is this: if I recreate the object, is there any way to pick up where I left off checking if the data is ready? This of course would require a reset, which the device will ignore during conversion, but I assume also a Match. Does this then make it impossible to resume the data checking? Interestingly, reading scratchpad is successful even when reading during what should be the conversion window. I assume this is picking up stale data. The bottom line is that I have the possibility of multiple OneWire buses, want to avoid global OneWire objects and creating memory space for a whole bunch of them floating around. I think at the moment I'm just going to have to enforce a space of time between convert and read scratchpad, and then reinstantiate the object knowing that the data will be ready to read by the time I do so, based on the resolution and the datasheet. Suggestions welcome. Colin ------------------------------------------------------------------------------ Slashdot TV. Videos for Nerds. Stuff that Matters. http://pubads.g.doubleclick.net/gampad/clk?id=160591471&iu=/4140/ostg.clktrk _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
