nRF5x shared functions for configuration the system clocks More...

Detailed Description

nRF5x shared functions for configuration the system clocks

Author: Hauke Petersen hauke.nosp@m..pet.nosp@m.ersen.nosp@m.@fu-.nosp@m.berli.nosp@m.n.de

Definition in file nrf_clock.h.

#define	CLOCK_HFXO_ONBOOT 0
	The high frequency clock (HFCLK) uses the internal oscillator per default.

void	clock_init_hf (void)
	Initialize the high frequency clock (HFCLK) as configured in the board's periph_conf.h.

void	clock_hfxo_request (void)
	Request the external high frequency crystal (HFXO) as HF clock source.

void	clock_hfxo_release (void)
	Release the use of the HFXO.

void	clock_start_lf (void)
	Start the low frequency clock (LFCLK) as configured in the board's periph_conf.

void	clock_stop_lf (void)
	Stop the low frequency clock (LFCLK)

Macro Definition Documentation

#define CLOCK_HFXO_ONBOOT 0

The high frequency clock (HFCLK) uses the internal oscillator per default.

Setting this define to 1 will enable the HFXO clock source on boot so it will always be active.

Definition at line 32 of file nrf_clock.h.

void clock_hfxo_release ( void )

Release the use of the HFXO.

If this was the last active request, the HFXO will be disabled

void clock_hfxo_request ( void )

Request the external high frequency crystal (HFXO) as HF clock source.

If this is the first request, the HFXO will be enabled.

void clock_start_lf ( void )

Start the low frequency clock (LFCLK) as configured in the board's periph_conf.

Calling this function while the LFCLK is already running will have no effect.

void clock_stop_lf ( void )

Stop the low frequency clock (LFCLK)