wireHelpers.h File Reference

a series of wire helper functions that make dealing with device register IO simpler More...

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Functions
void	write4BitToReg8 (WireType wireImpl, uint8_t i2cAddress, uint8_t reg, bool lowBits, uint8_t val)
void	toggleBitInRegister16 (WireType wireType, uint8_t addr, uint8_t regAddr, uint8_t theBit, bool value)
void	toggleBitInRegister8 (WireType wireType, uint8_t addr, uint8_t regAddr, uint8_t theBit, bool value)
bool	wireWriteReg8 (WireType wireType, uint8_t addr, uint8_t reg, uint8_t command)
bool	wireWriteReg16 (WireType wireType, uint8_t addr, uint8_t reg, uint16_t command)
uint8_t	wireReadReg8 (WireType wireType, uint8_t addr, uint8_t reg)
uint16_t	wireReadReg16 (WireType wireType, uint8_t addr, uint8_t reg)

Detailed Description

a series of wire helper functions that make dealing with device register IO simpler

Function Documentation

write4BitToReg8()

void write4BitToReg8	(	WireType	wireImpl,
		uint8_t	i2cAddress,
		uint8_t	reg,
		bool	lowBits,
		uint8_t	val
	)

Writes a 4 bit value into an 8 bit register preserving the other 4 bits.

Parameters

wireImpl	the wire implementation to use.
i2cAddress	the i2c address
reg	the register to write to
lowBits	if the low or high bits are to be modified
val	the new value between 0..15

toggleBitInRegister16()

void toggleBitInRegister16	(	WireType	wireType,
		uint8_t	addr,
		uint8_t	regAddr,
		uint8_t	theBit,
		bool	value
	)

Toggles a bit in a 16 bit register to the new value

Parameters

wireType	the wire implementation to use
addr	the i2c address
regAddr	the register to write to
theBit	the bit to change
value	the new value

toggleBitInRegister8()

void toggleBitInRegister8	(	WireType	wireType,
		uint8_t	addr,
		uint8_t	regAddr,
		uint8_t	theBit,
		bool	value
	)

Toggles a bit in an 8 bit register to the new value

Parameters

wireType	the wire implementation to use
addr	the i2c address
regAddr	the register to write to
theBit	the bit to change
value	the new value

wireWriteReg8()

bool wireWriteReg8	(	WireType	wireType,
		uint8_t	addr,
		uint8_t	reg,
		uint8_t	command
	)

Writes an 8 bit value to a register

Parameters

wireType	the wire implementation
addr	the i2c address
reg	the register to change
command	the value for the register

Returns

true if success

wireWriteReg16()

bool wireWriteReg16	(	WireType	wireType,
		uint8_t	addr,
		uint8_t	reg,
		uint16_t	command
	)

Writes a 16 bit value to a register

Parameters

wireType	the wire implementation
addr	the i2c address
reg	the register to change
command	the value for the register

Returns

true if success

wireReadReg8()

uint8_t wireReadReg8	(	WireType	wireType,
		uint8_t	addr,
		uint8_t	reg
	)

Reads an 8 bit value from a given register

Parameters

wireType	the wire implementation
addr	the i2c address
reg	the register to read

Returns

the register value

wireReadReg16()

uint16_t wireReadReg16	(	WireType	wireType,
		uint8_t	addr,
		uint8_t	reg
	)

Reads a 16 bit value from a given register

Parameters

wireType	the wire implementation
addr	the i2c address
reg	the register to read

Returns

the register value