Functions
void	AKC695X::commitTune ()
	Sets the STC bit to high when the tune operation completes. More...

void	AKC695X::setCustomBand (uint16_t minimum_frequency, uint16_t maximum_frequency)
	Sets the start and end frequencies for a custom band. More...

void	AKC695X::setFM (uint8_t akc695x_fm_band, uint16_t minimum_freq, uint16_t maximum_freq, uint16_t default_frequency, uint8_t default_step)
	Sets the AKC695X to FM mode. More...

void	AKC695X::setAM (uint8_t akc695x_am_band, uint16_t minimum_freq, uint16_t maximum_freq, uint16_t default_frequency, uint8_t default_step)
	Sets the AKC695X to AM mode and selects the band. More...

void	AKC695X::setStep (uint8_t step)
	Sets the step that will be used to increment and decrement the current frequency. More...

void	AKC695X::setFmSeekStep (uint8_t value)
	Sets FM step for seeking. More...

void	AKC695X::seekStation (uint8_t up_down, void(*showFunc)()=NULL)
	Seeks a FM station. More...

void	AKC695X::setFrequency (uint16_t frequency)
	Sets the the device to a given frequency. More...

uint16_t	AKC695X::getFrequency ()
	Returns the current frequency value. More...

void	AKC695X::frequencyUp ()
	Adds the current step to the current frequency and sets the new frequency. More...

void	AKC695X::frequencyDown ()
	Subtracts the current step from the current frequency and assign the new frequency. More...

void	AKC695X::setAudio (uint8_t phase_inv, uint8_t line, uint8_t volume)
	Configures the audio output. More...

void	AKC695X::setAudio ()
	Configures the audio output with default values. More...

void	AKC695X::setVolume (uint8_t volume)
	Sets the output audio volume. More...

void	AKC695X::setVolumeUp ()
	Increments the audio volume. More...

void	AKC695X::setVolumeDown ()
	Decrements the audio volume. More...

void	AKC695X::setVolumeControl (uint8_t type)
	Sets the kind of audio volume control will be used. More...

int	AKC695X::getRSSI ()
	Gets the current RSSI. More...

float	AKC695X::getSupplyVoltage ()
	Gets the supply voltage. More...

Detailed Description

Operation

Function Documentation

◆ commitTune()

void AKC695X::commitTune ( )

Sets the STC bit to high when the tune operation completes.

Tells the device that the tune process is over.

Referenced by AKC695X::setFrequency().

◆ setCustomBand()

void AKC695X::setCustomBand	(	uint16_t	minimum_frequency,
		uint16_t	maximum_frequency
	)

Sets the start and end frequencies for a custom band.

This method is used by setAM and setFM methods.

This will called when you set a band greater than 17 on AM mode or greater than 7 on FM mode.

You can use more than one band at a time.

See also: akc595x_reg4, akc595x_reg5

Parameters

band	if FM, a value greater than 7. If AM, a value greater than 17. You can use more than one.
minimum_frequency	Start frequency
maximum_frequency	Final frequency

◆ setFM()

void AKC695X::setFM	(	uint8_t	akc695x_fm_band,
		uint16_t	minimum_freq,
		uint16_t	maximum_freq,
		uint16_t	default_frequency,
		uint8_t	default_step
	)

Sets the AKC695X to FM mode.

Sets the device to FM mode. You can configure a custom FM band by setting band number greater than 7.

FM band	N#	Description
000	0	FM1,87 ~ 108, station search space specified intervals
001	1	FM2,76 ~ 108, station search space specified intervals
010	2	FM3,70 ~ 93, with a space station search interval set
011	3	FM4,76 ~ 90, Tuning predetermined space intervals
100	4	FM5,64 ~ 88, with a space station search interval set
101	5	TV1,56.25 ~ 91.75, station search space specified intervals
110	6	TV2, 174.75 ~ 222.25, found
111	7	sets predetermined space intervals, custom FM, station search space specified intervals

Parameters

akc695x_fm_band	FM band (see manual FM band table above). Set to a number greater than 7 if you want a custom FM band.
minimum_freq	Minimal frequency of the band
maximum_freq	Band maximum frequency
default_frequency	default frequency
default_step	increment and decrement step

◆ setAM()

void AKC695X::setAM	(	uint8_t	akc695x_am_band,
		uint16_t	minimum_freq,
		uint16_t	maximum_freq,
		uint16_t	default_frequency,
		uint8_t	default_step
	)

Sets the AKC695X to AM mode and selects the band.

This method configures the AM band you want to use.

You must respect the frequency limits defined by the AKC595X device documentation.

You can configure a custom band by setting a band greater than 17

AM band	N#	Description
00000	0	LW, 0.15 ~ 0.285, 3K station search
00001	1	MW1, 0.52 ~ 1.71, 5K station search
00010	2	MW2, 0.522 ~ 1.62, 9K station search
00011	3	MW3, 0.52 ~ 1.71, 10K station search
00100	4	SW1, 4.7 ~ 10, 5K station search
00101	5	SW2, 3.2 ~ 4.1, 5K station search
00110	6	SW3, 4.7 ~ 5.6, 5K station search
00111	7	SW4, 5.7 ~ 6.4, 5K station search
01000	8	SW5, 6.8 ~ 7.6, 5K station search
01001	9	SW6, 9.2 ~ 10, 5K station search
01010	10	SW7, 11.4 ~ 12.2, 5K station search
01011	11	SW8, 13.5 ~ 14.3
01100	12	SW9, 15 ~ 15.9
01101	13	SW10, 17.4 ~ 17.9
01110	14	SW11, 18.9 ~ 19.7, 5K station search
01111	15	SW12, 21.4 ~ 21.9, 5K station search
10000	16	SW13, 11.4 ~ 17.9, 5K station search
10010	17	MW4, 0.52 to 1.73, 5K station search
Other	18+	custom band, station search interval = 3K

Parameters

akc695x_am_band	AM band. Set to a value greater than 17 if you want a custom AM band (see manual AM band table above)
minimum_freq	Minimal frequency of the band
maximum_freq	Band maximum frequency
default_frequency	default frequency
default_step	increment and decrement step

◆ setStep()

void AKC695X::setStep ( uint8_t step )

Sets the step that will be used to increment and decrement the current frequency.

The AKC695X has two possible steps (3kHz and 5kHz). The step value is important to calculate the frequenvy you want to set.

See also: setFrequency; AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 12

Parameters

step	The valid values are 3 and 5. Other values will be ignored.

◆ setFmSeekStep()

void AKC695X::setFmSeekStep ( uint8_t space )

Sets FM step for seeking.

Sets FM seek step.

spece	N#	step
00	0	25 kHz
01	1	50 kHz

| 10 | 2 | 100 kHz | (default) | 11 | 3 | 200 kHz |

See also: AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio documentation; page 14

Parameters

space value betwenn 0 and 3 (see table above ).

◆ seekStation()

void AKC695X::seekStation	(	uint8_t	up_down,
		void(*)()	showFunc = `NULL`
	)

Seeks a FM station.

Seek a FM Station

// Do this if you want to show the frequency during the seek process.
// Where showFrequency is the function name of your sketch that shows the current frequency.
radio.seekStation(up_down,showFrequency);

// Do this if you don't want to show the frequency during seek process.

radio.seekStation(up_down);

See also: akc595x_reg20, akc595x_reg21, channelToFrequency

Parameters

up_down	if 0, seek down; if 1, seek up.
showFunc	Optional. Point to the function in you sketch that shows the current frequency. If NULL, do nothing (default).

◆ setFrequency()

void AKC695X::setFrequency ( uint16_t frequency )

Sets the the device to a given frequency.

This methods check the current mode (AM or FM), calculates the right channel to be setted.

Sets to reg2 structure the 5 most significan bist of the channel.

Sets to reg3 the 8 less significant bits of the channel.

See also: akc595x_reg2, akc595x_reg3

Parameters

frequency frequency you want to set to

References AKC695X::commitTune().

◆ getFrequency()

uint16_t AKC695X::getFrequency ( )

Returns the current frequency value.

Gets the current frequency.

Returns: uint16_t Current frequency value.

◆ frequencyUp()

void AKC695X::frequencyUp ( )

Adds the current step to the current frequency and sets the new frequency.

Goes to the next frequency channel

◆ frequencyDown()

void AKC695X::frequencyDown ( )

Subtracts the current step from the current frequency and assign the new frequency.

Goes to the previous frequency channel

◆ setAudio() [1/2]

void AKC695X::setAudio	(	uint8_t	phase_inv,
		uint8_t	line,
		uint8_t	volume
	)

Configures the audio output.

This method sets the AKC695X device audio behaviour

Parameters

phase_inv	if 0, audio output inphase; if 1, audio output inverted
line	if 0, audio input mode; if 1, radio mode.
volume	if 25 a 63, audio volume; if <= 24 mute

◆ setAudio() [2/2]

void AKC695X::setAudio ( )

Configures the audio output with default values.

this method sets the audio phase_inv = 0; line = 1 and volume = 40;

Also, this set the audio controlled by MCU (Arduino)

See also: setVolumeControl

◆ setVolume()

void AKC695X::setVolume ( uint8_t volume )

Sets the output audio volume.

Values less than 24 mute the audio output.

Values between 25 and 63 set the output audio volume.

Parameters

volume

◆ setVolumeUp()

void AKC695X::setVolumeUp ( )

Increments the audio volume.

The maximum volume is 63

◆ setVolumeDown()

void AKC695X::setVolumeDown ( )

Decrements the audio volume.

The minimum volume is 25

◆ setVolumeControl()

void AKC695X::setVolumeControl ( uint8_t type )

Sets the kind of audio volume control will be used.

This method configures the kind of audio volume control will be used.

You can control the audio volume by potentiometer or by MCU (Arduino).

If you choose volume conttolled by Arduino (type 1), you can set the volume from 25 to 63 levels.

See also: setVolume, akc595x_reg9

Parameters

type	0 = controlled by poteciometer; 1 controlled by the MCU

◆ getRSSI()

int AKC695X::getRSSI ( )

Gets the current RSSI.

This method calculates the RSSI based on two register (24 and 27).

Actually, it is the Antenna aperture and can be calculated using signal levels rssi, pgalevel_rf, pgalevel_if.

The rssi is stored in the register 27 and the pgalevel_rf, pgalevel_if are stored in register 24.

On FM mode or SW band, the formula is: Pin (dBuV) = 103 - rssi - 6 * pgalevel_rf - 6 * pgalevel_if

On AM mode (LW or MW), the formula is: Pin (dBuV) = 123 - rssi - 6 * pgalevel_rf - 6 * pgalevel_if

See also: AKC6955 stereo FM / TV / MW / SW / LW digital tuning radio; page 16; akc595x_reg24, akc595x_reg27

Returns: int RSSI value

◆ getSupplyVoltage()

float AKC695X::getSupplyVoltage ( )

Gets the supply voltage.

Gets the current supply voltage

Returns: float the supply voltage

Functions

Detailed Description

Operation

Function Documentation

◆ commitTune()

◆ setCustomBand()

◆ setFM()

◆ setAM()

◆ setStep()

◆ setFmSeekStep()

◆ seekStation()

◆ setFrequency()

◆ getFrequency()

◆ frequencyUp()

◆ frequencyDown()

◆ setAudio() [1/2]

◆ setAudio() [2/2]

◆ setVolume()

◆ setVolumeUp()

◆ setVolumeDown()

◆ setVolumeControl()

◆ getRSSI()

◆ getSupplyVoltage()