Using regular GPIO for OneWire

Would not your review of the driver lib. - specifically any/all gpiopinconfigure() and gpiopintype() functions which include/reference, "OWIRE" & "OWALT" point the way to any required/suggested, "special pin handling?"

Suggest that as your, "problem solving" beginning...

Reading the driver lib selectively, "unlocks" many mysteries - makes you stronger, less dependent...  Amit, vendor others, outsiders - may not always be here or arrive exactly as/when needed...

Hello Zvika,

The Pins mentioned in the Signal description or PinMux for a particular device is the only set of options that can be selected.

An arbitrary GPIO cannot be used.

Regards

Amit

Let the record show - long before there existed a "Stellaris" (may they rest in peace) nor a "Tiva" we regularly & effectively "talked" w/ "1-Wire devices" via plain vanilla, GPIO...

Have 1-Wire devices changed - now limiting their interface?

What Amit may be implying is that your use of vendor's library (targeting such 1-Wire) may limit your usage to specified MCU pins.  But - if you're willing to bit-bang some timer & data code (not too hard) suspect almost any vanilla gpio pin may well serve...  After all - that's just how we did it in the, "olde (pre-driver lib) days."  And - I'd bet - 1-Wire vendors still supply detailed App Notes - showing clearly how to massage gpio into 1-Wire conformance...  (no special pins, required!)

Hello,

Is it possible to get from TI the source code of the one wire driver ?

Thanks,

Zvika

Hello Zvi

The onewire driver file is at

C:\ti\TivaWare_C_Series-2.1.0.12573\driverlib\onewire.c and onewire.h

However they call the hw_onewire.h file from the inc directory which is not there in the latest release of TIVAWare 2.1.0 and is planned for the next release

I did mention quite a few posts back that we can help build it for forum members till the official release is out.

Regards

Amit