Basic Functions

Functions
void	SI4844::getCommandResponse (int response_size, uint8_t *response)
	Returns with the command response.
bool	SI4844::getDataStatusInterruptFromDevice ()
	Get the Data Status From Device.
uint16_t	SI4844::getProperty (uint16_t propertyNumber)
	Gets a given property from the SI4844.
void	SI4844::sendCommand (uint8_t cmd, int parameter_size, const uint8_t *parameter)
	Sends a given command to the SI4844 device.
void	SI4844::setProperty (uint16_t propertyNumber, uint16_t parameter)
	Sends (sets) property to the SI48XX.
void	SI4844::setStatusInterruptFromDevice (bool value)
	Set the Data Status From Device.

Detailed Description

Function Documentation

getCommandResponse()

void SI4844::getCommandResponse	(	int	response_size,
		uint8_t *	response
	)

Returns with the command response.

After a command is executed by the device, you can get the result (response) of the command by calling this method.

See also

sendCommand, setProperty

Parameters

response_size	num of bytes returned by the command.
response	byte array where the response will be stored.

getDataStatusInterruptFromDevice()

bool SI4844::getDataStatusInterruptFromDevice ( )

inline

Get the Data Status From Device.

It returns true when the device has triggered an interrupt.

Returns

true or false

getProperty()

uint16_t SI4844::getProperty

(

uint16_t

propertyNumber

)

Gets a given property from the SI4844.

This method is used to get a given property from SI47XX

You might need to extract set of bits information from the returned value to know the real value

Parameters

propertyNumber

property number (example: RX_VOLUME)

Returns

property value (the content of the property)

sendCommand()

void SI4844::sendCommand	(	uint8_t	cmd,
		int	parameter_size,
		const uint8_t *	parameter
	)

Sends a given command to the SI4844 device.

This function can be useful when you want to execute a SI4844 device command and it was not implemented by this library.

Also, you need to work with bit operators to compose the parameters of the command [ &(and), ˆ(xor), |(or) etc ].

See also

getCommandResponse, setProperty, getProperty

Parameters

cmd	command number (see PROGRAMMING GUIDE)
parameter_size	Parameter size in bytes. Tell the number of argument used by the command.
parameter	uint16_t byte array with the arguments of the command

setProperty()

void SI4844::setProperty	(	uint16_t	propertyNumber,
		uint16_t	parameter
	)

Sends (sets) property to the SI48XX.

This method is used for others to send generic properties and params to SI4844

Parameters

propertyNumber	property number (example: RX_VOLUME)
parameter	property value that will be seted

setStatusInterruptFromDevice()

void SI4844::setStatusInterruptFromDevice ( bool  value )

inline

Set the Data Status From Device.

It is a flag that means the device triggered an interrupt.

You can use this function to back the flag status to false. This way you can check when the device triggers the next interrupt.

It is very useful when the user wants to control the interrupt instead of give this control to the library.

Parameters

value

true or false