onewire_.h File Reference

Implementation-specific support for onewire bus configurations on boards in the Nordic Semiconductor nRF51 device series. More...

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Data Structures
struct	sBSPACMonewireBus

Typedefs
typedef struct sBSPACMonewireBus	sBSPACMonewireBus

Functions
hBSPACMonewireBus	hBSPACMonewireConfigureBus (sBSPACMonewireBus *bp, int dq_pin, int pwr_pin)

Detailed Description

Implementation-specific support for onewire bus configurations on boards in the Nordic Semiconductor nRF51 device series.

Warning

This file is included generically by <bspacm/utility/onewire.h> and will not be interpreted correctly in other contexts.

Homepage

http://github.com/pabigot/bspacm

Copyright

Copyright 2015, Peter A. Bigot. Licensed under BSD-3-Clause

Typedef Documentation

typedef struct sBSPACMonewireBus sBSPACMonewireBus

nRF51 variant bus configuration for one-wire devices

Function Documentation

hBSPACMonewireBus hBSPACMonewireConfigureBus	(	sBSPACMonewireBus *	bp,
		int	dq_pin,
		int	pwr_pin
	)

Configure the given bus structure for one-wire operation.

Parameters

bp	pointer to device-specific information identifying the 1-wire bus
dq_pin	GPIO pin connected to device DQ signal. This must be an integer in the range 0..31.
pwr_pin	GPIO pin used to turn on parasitic power. Assumed to be active high. Pass -1 to indicate that external power is being used.

Returns

the handle for the configured bus, or NULL if the parameters were invalid.