sensor_bus.c File Reference

Sensor API Platform Bus Interfaces.

Copyright (c) 2011-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include "conf_sensors.h"
#include "sensor_bus.h"

Functions
uint8_t	bus_reg_fieldget (bus_desc_t *bus, uint8_t addr, uint8_t mask)
	Read a field stored at a device register or memory address. More...
void	bus_reg_fieldset (bus_desc_t *bus, uint8_t addr, uint8_t mask, uint8_t value)
	Write a field stored at a device register or memory address. More...

uint8_t bus_reg_fieldget	(	bus_desc_t *	bus,
		uint8_t	addr,
		uint8_t	mask
	)

Read a field stored at a device register or memory address.

Sensor Platform Board ConfigurationThis routine reads a specified value from a bit field within a 1-Byte device register or memory address. The set bits in the mask parameter determine the field location. For example, if the mask is 30h and the value AFh is stored in the register, the value 2h will be returned.

Parameters

bus	An initialized bus interface descriptor.
addr	The device register or memory address.
mask	The mask of the field to set.

Returns

The value stored in the register or memory field.

References bus_get().

void bus_reg_fieldset	(	bus_desc_t *	bus,
		uint8_t	addr,
		uint8_t	mask,
		uint8_t	value
	)

Write a field stored at a device register or memory address.

This routine writes a specified value to a bit field within a 1-Byte device register or memory address. The set bits in the mask parameter determine the field location. For example, if the mask is 30h and the value is 2h, the value 20h will be bitwise logically OR'd into the 1-Byte register value after clearing the bit values in the field.

Parameters

bus	An initialized bus interface descriptor.
addr	The device register or memory address.
mask	The mask of the field to set.
value	The value of the field to set.

Returns

Nothing

References bus_get(), and bus_put().