Tools method

Functions
char *	RDA5807::formatFrequency (uint16_t value, char *strValue, char decimalSeparator)
	Convert a numeric frequency to a formated string (char *) frequency.
char *	RDA5807::formatCurrentFrequency (char decimalSeparator=',')
	Convert the current frequency to a formated string (char *) frequency.
void	RDA5807::convertToChar (uint16_t value, char *strValue, uint8_t len, uint8_t dot, uint8_t separator, bool remove_leading_zeros=true)
	Converts a number to a char array.
int	RDA5807::checkI2C (uint8_t *addressArray)
	Check the I2C bus address.

Detailed Description

A set of functions used to support other functions

Function Documentation

checkI2C()

int RDA5807::checkI2C

(

uint8_t *

addressArray

)

Check the I2C bus address.

Parameters

uint8_t

address Array - this array will be populated with the I2C bus addresses found (minimum three elements)

Returns

0 if no i2c device is found; -1 if error is found or n > 0, where n is the number of I2C bus address found

convertToChar()

void RDA5807::convertToChar	(	uint16_t	value,
		char *	strValue,
		uint8_t	len,
		uint8_t	dot,
		uint8_t	separator,
		bool	remove_leading_zeros = true
	)

Converts a number to a char array.

It is useful to mitigate memory space used by functions like sprintf or othetr generic similar functions

You can use it to format frequency using decimal or tousand separator and also to convert smalm numbers.

Parameters

value	value to be converted
strValue	char array that will be receive the converted value
len	final string size (in bytes)
dot	the decimal or tousand separator position
separator	symbol "." or ","
remove_leading_zeros	if true removes up to two leading zeros (default is true)

formatCurrentFrequency()

char * RDA5807::formatCurrentFrequency ( char  decimalSeparator = ',' )

inline

Convert the current frequency to a formated string (char *) frequency.

The current frequency is the latest setted frequency by setFrequency, seek, setFrequencyUp and setFrequencyDown.

Parameters

char	decimalSeparator - the symbol that separates the decimal part (Exe: . or ,)

Returns

point char string strFrequency (member variable)

See also

setFrequency, seek, setFrequencyUp and setFrequencyDown

References RDA5807::strFrequency.

formatFrequency()

char * RDA5807::formatFrequency ( uint16_t  value, char *  strValue, char  decimalSeparator  )

inline

Convert a numeric frequency to a formated string (char *) frequency.

Parameters

uint16_t	value - A given frequency to be formated
char	*strValue - Formated frequency (Exe: 103,90) - Array of char ( minimal 7 elements )
char	decimalSeparator - the symbol that separates the decimal part (Exe: . or ,)

Returns

point of strValue