CLK

Functions
bool	bsp_clock_xtalm_is_settled (void)
int16_t	hw_clk_xtalm_update_rdy_cnt (void)
	Update XTAL40M Ready IRQ counter. More...
void	hw_clk_xtalm_compensate_amp (void)
	Perform XTAL40M RCOSC amplitude temperature compensation.
void	hw_clk_xtalm_configure (void)
	Configure XTAL40M.
__RETAINED_CODE uint32_t	hw_clk_pll_sys_on (void)
	Enable the PLL.
__RETAINED_CODE void	hw_clk_pll_sys_off (void)
	Disable the PLL. More...
__RETAINED_CODE void	pll_on (void)
	Enable PLL.
__RETAINED_CODE void	pll_off (void)
	Disable PLL.
BSP_PLACE_CODE_IN_RAM void	bsp_prv_rtc_mirror_init (void)
BSP_PLACE_CODE_IN_RAM lp_clk_is_t	bsp_prv_lpclk_get ()
BSP_PLACE_CODE_IN_RAM fsp_err_t	bsp_prv_lpclk_select (lp_clk_is_t type)
	Selects the low power clock source. More...

Detailed Description

Files
file	ra6w1/bsp_clocks.c
	Clock Driver.

Function Documentation

bsp_clock_xtalm_is_settled()

bool bsp_clock_xtalm_is_settled

(

void

)

Checks if the main oscillator (XTALM) has settled.

Returns

true if XTALM has settled, false if it hasn't.

hw_clk_xtalm_update_rdy_cnt()

int16_t hw_clk_xtalm_update_rdy_cnt

(

void

)

Update XTAL40M Ready IRQ counter.

Returns

The difference between the new and the old XTAL40M Ready IRQ counter in cycles of 32KHz clocks.

hw_clk_pll_sys_off()

__RETAINED_CODE void hw_clk_pll_sys_off

(

void

)

Disable the PLL.

Warning

The System clock must have been set to XTAL40M before calling this function!

bsp_prv_rtc_mirror_init()

BSP_PLACE_CODE_IN_RAM void bsp_prv_rtc_mirror_init

(

void

)

Enable mirror for acessing RTC register.

Note

The RTC block uses a 32khz clock. Because of this, bus access also uses 32khz. Using a mirror, you can access the RTC register using the CPU's clock.

bsp_prv_lpclk_get()

BSP_PLACE_CODE_IN_RAM lp_clk_is_t bsp_prv_lpclk_get

(

)

Gets the current low power clock source selection.

Returns

The current low power clock source type.

bsp_prv_lpclk_select()

BSP_PLACE_CODE_IN_RAM fsp_err_t bsp_prv_lpclk_select

(

lp_clk_is_t

type

)

Selects the low power clock source.

This function selects the low power clock source based on the input type. It checks the current clock selection and updates it if available.

Parameters

[in]

type

The desired low power clock source type.

Returns

The selected low power clock source type.

Note

The lp clock has internal rcx and external xtal32k. It usually takes about 1 second after POR for XTAL_RDY_BAT_RD_STATUS to become 1.