Audio Clock

Audio clock management for nRF Audio application. More...

Macros
#define	HFCLKAUDIO_12_288_MHZ   0x9BA6
	HFCLKAUDIO frequency value for 12.288-MHz output.
#define	HFCLKAUDIO_12_165_MHZ   0x8FD8
#define	HFCLKAUDIO_12_411_MHZ   0xA774
#define	APLL_FREQ_MIN   HFCLKAUDIO_12_165_MHZ
#define	APLL_FREQ_CENTER   HFCLKAUDIO_12_288_MHZ
#define	APLL_FREQ_MAX   HFCLKAUDIO_12_411_MHZ

Functions
int	audio_clock_set (uint16_t freq_value)
	Set the audio clock frequency. This function configures the audio clock to the specified frequency value. The frequency value must be within the range defined by APLL_FREQ_MIN and APLL_FREQ_MAX. The function will adjust the frequency to fit within this range if necessary.
int	audio_clock_init (void)
	Initialize the audio clock. This function initializes the audio clock system, which may involve configuring the necessary hardware components and ensuring that the clock is ready for use. This should be called before any other audio clock functions are used.

Detailed Description

Audio clock management for nRF Audio application.

This module provides functions to manage the audio clock. On the nRF5340 SoC, the audio clock is typically derived from the Analog Phase-Locked Loop (APLL), which is used to generate the required frequencies for transmission, for instance I2S or TDM.