SYSRTC - System Real Time Counter#

sl_sysrtc_capture_edge_t#

sl_sysrtc_capture_edge_t

Capture input edge select.

sl_sysrtc_compare_match_out_action_t#

sl_sysrtc_compare_match_out_action_t

Compare match output action mode.

sl_sysrtc_init#

void sl_sysrtc_init (const sl_sysrtc_config_t *p_config)

Initializes SYSRTC module.

Note that the compare values must be set separately with (sl_sysrtc_set_group_compare_channel_value()), which should probably be done prior to the use of this function if configuring the SYSRTC to start when initialization is completed.

sl_sysrtc_enable#

void sl_sysrtc_enable (void)

Enables SYSRTC counting.

sl_sysrtc_disable#

void sl_sysrtc_disable (void)

Disables SYSRTC counting.

sl_sysrtc_wait_sync#

void sl_sysrtc_wait_sync (void)

Waits for the SYSRTC to complete all synchronization of register changes and commands.

sl_sysrtc_wait_ready#

void sl_sysrtc_wait_ready (void)

Waits for the SYSRTC to complete reseting or disabling procedure.

sl_sysrtc_start#

void sl_sysrtc_start (void)

Starts SYSRTC counter.

This function will send a start command to the SYSRTC peripheral. The SYSRTC peripheral will use some LF clock ticks before the command is executed. The sl_sysrtc_wait_sync() function can be used to wait for the start command to be executed.

Note

• This function requires the SYSRTC to be enabled.

sl_sysrtc_stop#

void sl_sysrtc_stop (void)

Stops the SYSRTC counter.

This function will send a stop command to the SYSRTC peripheral. The SYSRTC peripheral will use some LF clock ticks before the command is executed. The sl_sysrtc_wait_sync() function can be used to wait for the stop command to be executed.

Note

• This function requires the SYSRTC to be enabled.

sl_sysrtc_reset#

void sl_sysrtc_reset (void)

Restores SYSRTC to its reset state.

sl_sysrtc_get_status#

uint32_t sl_sysrtc_get_status (void)

Gets SYSRTC STATUS register value.

Returns

• Current STATUS register value.

sl_sysrtc_lock#

void sl_sysrtc_lock (void)

Locks SYSRTC registers.

Note

• When SYSRTC registers are locked SYSRTC_EN, SYSRTC_CFG, SYSRTC_CMD, SYSRTC_SWRST, SYSRTC_CNT and SYSRTC_TOPCNT registers cannot be written to.

sl_sysrtc_unlock#

void sl_sysrtc_unlock (void)

Unlocks SYSRTC registers.

Note

• When SYSRTC registers are locked SYSRTC_EN, SYSRTC_CFG, SYSRTC_CMD, SYSRTC_SWRST, SYSRTC_CNT and SYSRTC_TOPCNT registers cannot be written to.

sl_sysrtc_get_counter#

uint32_t sl_sysrtc_get_counter (void)

Gets SYSRTC counter value.

Returns

• Current SYSRTC counter value.

sl_sysrtc_set_counter#

void sl_sysrtc_set_counter (uint32_t value)

Sets the SYSRTC counter value.

sl_sysrtc_init_group#

void sl_sysrtc_init_group (uint8_t group_number, sl_sysrtc_group_config_t const *p_group_config)

Initializes the selected SYSRTC group.

sl_sysrtc_enable_group_interrupts#

void sl_sysrtc_enable_group_interrupts (uint8_t group_number, uint32_t flags)

Enables one or more SYSRTC interrupts for the given group.

Note

• Depending on the use, a pending interrupt may already be set prior to enabling the interrupt. To ignore a pending interrupt, consider using sl_sysrtc_clear_group_interrupts() prior to enabling the interrupt.

sl_sysrtc_disable_group_interrupts#

void sl_sysrtc_disable_group_interrupts (uint8_t group_number, uint32_t flags)

Disables one or more SYSRTC interrupts for the given group.

sl_sysrtc_clear_group_interrupts#

void sl_sysrtc_clear_group_interrupts (uint8_t group_number, uint32_t flags)

Clears one or more pending SYSRTC interrupts for the given group.

sl_sysrtc_get_group_interrupts#

uint32_t sl_sysrtc_get_group_interrupts (uint8_t group_number)

Gets pending SYSRTC interrupt flags for the given group.

Note

• Event bits are not cleared by using this function.

Returns

• Pending SYSRTC interrupt sources. Returns a set of interrupt flags OR-ed together for multiple interrupt sources in the SYSRTC group.

sl_sysrtc_get_group_enabled_interrupts#

uint32_t sl_sysrtc_get_group_enabled_interrupts (uint8_t group_number)

Gets enabled and pending SYSRTC interrupt flags.

Useful for handling more interrupt sources in the same interrupt handler.

Note

• Interrupt flags are not cleared by using this function.

Returns

• Pending and enabled SYSRTC interrupt sources. The return value is the bitwise AND of

  • the enabled interrupt sources in SYSRTC_GRPx_IEN and

  • the pending interrupt flags SYSRTC_GRPx_IF.

sl_sysrtc_set_group_interrupts#

void sl_sysrtc_set_group_interrupts (uint8_t group_number, uint32_t flags)

Sets one or more pending SYSRTC interrupts for the given group from Software.

sl_sysrtc_get_group_compare_channel_value#

uint32_t sl_sysrtc_get_group_compare_channel_value (uint8_t group_number, uint8_t channel)

Gets SYSRTC compare register value for selected channel of given group.

Returns

• Compare register value.

sl_sysrtc_set_group_compare_channel_value#

void sl_sysrtc_set_group_compare_channel_value (uint8_t group_number, uint8_t channel, uint32_t value)

Sets SYSRTC compare register value for selected channel of given group.

sl_sysrtc_get_group_capture_channel_value#

uint32_t sl_sysrtc_get_group_capture_channel_value (uint8_t group_number)

Gets SYSRTC input capture register value for capture channel of given group.

Gets SYSRTC input capture register value for selected channel of given group.

Returns

• Capture register value.

SYSRTC_GROUP_MIN_CHANNEL_COMPARE#

#define SYSRTC_GROUP_MIN_CHANNEL_COMPARE

1u

Minimum compare channels for SYSRTC group.

SYSRTC_GROUP_MAX_CHANNEL_COMPARE#

#define SYSRTC_GROUP_MAX_CHANNEL_COMPARE

2u

Maximum compare channels for SYSRTC group.

SYSRTC_GROUP_MIN_CHANNEL_CAPTURE#

#define SYSRTC_GROUP_MIN_CHANNEL_CAPTURE

0u

Minimum capture channels for SYSRTC group.

SYSRTC_GROUP_MAX_CHANNEL_CAPTURE#

#define SYSRTC_GROUP_MAX_CHANNEL_CAPTURE

1u

Maximum capture channels for SYSRTC group.

SYSRTC_GROUP_NUMBER#

#define SYSRTC_GROUP_NUMBER

1u

Sysrtc group number.

SYSRTC_GROUP_VALID#

#define SYSRTC_GROUP_VALID

(group)

Validation of valid SYSRTC group for assert statements.

SYSRTC_CONFIG_DEFAULT#

#define SYSRTC_CONFIG_DEFAULT

Suggested default values for SYSRTC configuration structure.

SYSRTC_GROUP_CHANNEL_COMPARE_CONFIG_DEFAULT#

#define SYSRTC_GROUP_CHANNEL_COMPARE_CONFIG_DEFAULT

Suggested default values for compare channel configuration structure.

SYSRTC_GROUP_CHANNEL_COMPARE_CONFIG_EARLY_WAKEUP#

#define SYSRTC_GROUP_CHANNEL_COMPARE_CONFIG_EARLY_WAKEUP

Compare channel configuration for starting HFXO using PRS.

SYSRTC_GROUP_CHANNEL_CAPTURE_CONFIG_DEFAULT#

#define SYSRTC_GROUP_CHANNEL_CAPTURE_CONFIG_DEFAULT

Suggested default values for capture channel configuration structure.

SYSRTC_GROUP_CONFIG_DEFAULT#

#define SYSRTC_GROUP_CONFIG_DEFAULT

Suggested default values for SYSRTC group configuration structure.