Functions

General Description

Functions
void	Cy_SysClk_ClkLfSetSource (cy_en_clklf_in_sources_t source)
	Sets the source for the low frequency clock(clkLf). More...
cy_en_clklf_in_sources_t	Cy_SysClk_ClkLfGetSource (void)
	Reports the source for the low frequency clock (clkLf). More...

Function Documentation

Cy_SysClk_ClkLfSetSource()

void Cy_SysClk_ClkLfSetSource

(

cy_en_clklf_in_sources_t

source

)

Sets the source for the low frequency clock(clkLf).

Parameters

source

cy_en_clklf_in_sources_t

Note

The watchdog timer (WDT) must be unlocked before calling this function.

It takes four cycles of the originally selected clock to switch away from it. Do not disable the original clock during this time.

Function Usage

    /* Scenario: LFCLK source needs to be updated to the ILO. */

    if(CY_SYSCLK_CLKLF_IN_ILO != Cy_SysClk_ClkLfGetSource())
    {
        Cy_SysClk_ClkLfSetSource(CY_SYSCLK_CLKLF_IN_ILO);
    }

Cy_SysClk_ClkLfGetSource()

cy_en_clklf_in_sources_t Cy_SysClk_ClkLfGetSource

(

void

)

Reports the source for the low frequency clock (clkLf).

Returns

cy_en_clklf_in_sources_t

Function Usage

    /* Scenario: LFCLK source needs to be updated to the ILO. */

    if(CY_SYSCLK_CLKLF_IN_ILO != Cy_SysClk_ClkLfGetSource())
    {
        Cy_SysClk_ClkLfSetSource(CY_SYSCLK_CLKLF_IN_ILO);
    }