PA Power Conversions#

Modules#

sl_rail_pa_descriptor_t

sl_rail_tx_power_table_config_t

Variables#

const sl_rail_tx_power_table_config_t

sl_rail_util_pa_tx_power_table

The PA table to be used for transmission.

Functions#

void

sl_rail_util_pa_init(void)

Initialize PA dBm conversion for transmit.

sl_rail_status_t

sl_rail_util_pa_post_init(sl_rail_handle_t rail_handle, sl_rail_tx_pa_mode_t pa_mode)

Establish PA mode and related parameters from the PA configuration post sl_rail_init().

sl_rail_status_t

sl_rail_util_pa_get_tx_power_limits(sl_rail_handle_t rail_handle, sl_rail_tx_pa_mode_t pa_mode, sl_rail_tx_power_t *p_min_ddbm, sl_rail_tx_power_t *p_max_ddbm, sl_rail_tx_power_t *p_step_ddbm)

Get the TX PA power conversion limits for the indicated PA mode.

sl_rail_status_t

sl_rail_util_pa_convert_power_to_actual(sl_rail_handle_t rail_handle, sl_rail_tx_pa_mode_t pa_mode, sl_rail_tx_power_t *p_ddbm)

Convert requested power to actual power achievable for the indicated PA mode.

RAIL_TxPowerConfig_t *

sl_rail_util_pa_get_tx_power_config_2p4ghz(void)

Returns a RAIL 2.x compatible power configuration for the default 2.4 GHz PA selection on platforms that support the 2.4 GHz band, or NULL otherise.

RAIL_TxPowerConfig_t *

sl_rail_util_pa_get_tx_power_config_subghz(void)

Returns a RAIL 2.x compatible power configuration for the default Sub-GHz PA selection on platforms that support the Sub-GHz band, or NULL otherise.

RAIL_TxPowerConfig_t *

sl_rail_util_pa_get_tx_power_config_ofdm(void)

Returns a RAIL 2.x compatible power configuration for the default OFDM PA selection on platforms that support OFDM, or NULL otherise.

sl_rail_status_t

sl_rail_util_pa_init_tx_power_table(sl_rail_handle_t radio_handle, const sl_rail_tx_power_table_config_t *p_tx_power_table_config)

Initialize Transmit power tables.

void

sl_rail_util_pa_on_channel_config_change(sl_rail_handle_t rail_handle, const sl_rail_channel_config_entry_t *p_entry)

Provide a channel config change callback capable of configuring the PA correctly.

const sl_rail_pa_power_setting_t *

sl_rail_util_pa_get_power_setting_table(sl_rail_handle_t rail_handle, sl_rail_tx_power_mode_t mode, sl_rail_tx_power_t *p_min_ddbm, sl_rail_tx_power_t *p_max_ddbm, sl_rail_tx_power_t *p_step_ddbm)

Get the TX PA power setting table and related values.

Variable Documentation#

sl_rail_util_pa_tx_power_table#

const sl_rail_tx_power_table_config_t sl_rail_util_pa_tx_power_table

The PA table to be used for transmission.

Function Documentation#

sl_rail_util_pa_init#

void sl_rail_util_pa_init (void )

Initialize PA dBm conversion for transmit.

Parameters

Type	Direction	Argument Name	Description
void	N/A

sl_rail_util_pa_post_init#

sl_rail_status_t sl_rail_util_pa_post_init (sl_rail_handle_t rail_handle, sl_rail_tx_pa_mode_t pa_mode)

Establish PA mode and related parameters from the PA configuration post sl_rail_init().

Parameters

Type	Direction	Argument Name	Description
sl_rail_handle_t	[in]	rail_handle	A real RAIL instance handle.
sl_rail_tx_pa_mode_t	[in]	pa_mode	The PA mode to establish.

Returns

Status code indicating success of the function call.

This function should be called soon after sl_rail_init() when the application is not using the Callbacks Utility component.

sl_rail_util_pa_get_tx_power_limits#

sl_rail_status_t sl_rail_util_pa_get_tx_power_limits (sl_rail_handle_t rail_handle, sl_rail_tx_pa_mode_t pa_mode, sl_rail_tx_power_t * p_min_ddbm, sl_rail_tx_power_t * p_max_ddbm, sl_rail_tx_power_t * p_step_ddbm)

Get the TX PA power conversion limits for the indicated PA mode.

Parameters

Type	Direction	Argument Name	Description
sl_rail_handle_t	[in]	rail_handle	A real RAIL instance handle.
sl_rail_tx_pa_mode_t	[in]	pa_mode	The PA mode to use for the conversion. If this is SL_RAIL_TX_PA_MODE_INVALID then the PA mode associated with the current channel configuration is used.
sl_rail_tx_power_t *	[out]	p_min_ddbm	A pointer to a sl_rail_tx_power_t; may be NULL.
sl_rail_tx_power_t *	[out]	p_max_ddbm	A pointer to a sl_rail_tx_power_t; may be NULL.
sl_rail_tx_power_t *	[out]	p_step_ddbm	A pointer to a sl_rail_tx_power_t; may be NULL.

Returns

Status code indicating success of the function call.

sl_rail_util_pa_convert_power_to_actual#

sl_rail_status_t sl_rail_util_pa_convert_power_to_actual (sl_rail_handle_t rail_handle, sl_rail_tx_pa_mode_t pa_mode, sl_rail_tx_power_t * p_ddbm)

Convert requested power to actual power achievable for the indicated PA mode.

Parameters

Type	Direction	Argument Name	Description
sl_rail_handle_t	[in]	rail_handle	A real RAIL instance handle.
sl_rail_tx_pa_mode_t	[in]	pa_mode	The PA mode to use for the conversion. If this is SL_RAIL_TX_PA_MODE_INVALID then the PA mode associated with the current channel configuration is used.
sl_rail_tx_power_t *	[inout]	p_ddbm	A non-NULL pointer to the deci-dBm value to convert, which the function updates with the resulting actual power based on the power conversion algorithm for the currently selected PA when returning success.

Returns

Status code indicating success of the function call.

Note

This function does not take into account any channel configuration power restrictions.

sl_rail_util_pa_get_tx_power_config_2p4ghz#

RAIL_TxPowerConfig_t * sl_rail_util_pa_get_tx_power_config_2p4ghz (void )

Returns a RAIL 2.x compatible power configuration for the default 2.4 GHz PA selection on platforms that support the 2.4 GHz band, or NULL otherise.

Parameters

Type	Direction	Argument Name	Description
void	N/A

Returns

A pointer to the TX Power Config stucture.

DeprecatedThis RAIL 2.x function should be replaced in RAIL 3 by use of sl_rail_util_pa_post_init().

sl_rail_util_pa_get_tx_power_config_subghz#

RAIL_TxPowerConfig_t * sl_rail_util_pa_get_tx_power_config_subghz (void )

Returns a RAIL 2.x compatible power configuration for the default Sub-GHz PA selection on platforms that support the Sub-GHz band, or NULL otherise.

Parameters

Type	Direction	Argument Name	Description
void	N/A

Returns

A pointer to the TX Power Config stucture.

DeprecatedThis RAIL 2.x function should be replaced in RAIL 3 by use of sl_rail_util_pa_post_init().

sl_rail_util_pa_get_tx_power_config_ofdm#

RAIL_TxPowerConfig_t * sl_rail_util_pa_get_tx_power_config_ofdm (void )

Returns a RAIL 2.x compatible power configuration for the default OFDM PA selection on platforms that support OFDM, or NULL otherise.

Parameters

Type	Direction	Argument Name	Description
void	N/A

Returns

A pointer to the TX Power Config stucture.

DeprecatedThis RAIL 2.x function should be replaced in RAIL 3 by use of sl_rail_util_pa_post_init().

sl_rail_util_pa_init_tx_power_table#

sl_rail_status_t sl_rail_util_pa_init_tx_power_table (sl_rail_handle_t radio_handle, const sl_rail_tx_power_table_config_t * p_tx_power_table_config)

Initialize Transmit power tables.

Parameters

Type	Direction	Argument Name	Description
sl_rail_handle_t	[in]	radio_handle	A radio-generic RAIL handle.
const sl_rail_tx_power_table_config_t *	[in]	p_tx_power_table_config	A pointer to the TX power table to use.

Returns

Status code indicating success of the function call.

sl_rail_util_pa_on_channel_config_change#

void sl_rail_util_pa_on_channel_config_change (sl_rail_handle_t rail_handle, const sl_rail_channel_config_entry_t * p_entry)

Provide a channel config change callback capable of configuring the PA correctly.

Parameters

Type	Direction	Argument Name	Description
sl_rail_handle_t	[in]	rail_handle	The real RAIL handle being passed into this callback.
const sl_rail_channel_config_entry_t *	[in]	p_entry	A pointer to the channel config entry being switched to by hardware.

sl_rail_util_pa_get_power_setting_table#

const sl_rail_pa_power_setting_t * sl_rail_util_pa_get_power_setting_table (sl_rail_handle_t rail_handle, sl_rail_tx_power_mode_t mode, sl_rail_tx_power_t * p_min_ddbm, sl_rail_tx_power_t * p_max_ddbm, sl_rail_tx_power_t * p_step_ddbm)

Get the TX PA power setting table and related values.

Parameters

Type	Direction	Argument Name	Description
sl_rail_handle_t	[in]	rail_handle	A real RAIL instance handle.
sl_rail_tx_power_mode_t	[in]	mode	PA mode for which to get the powersetting table.
sl_rail_tx_power_t *	[out]	p_min_ddbm	A pointer to a sl_rail_tx_power_t.
sl_rail_tx_power_t *	[out]	p_max_ddbm	A pointer to a sl_rail_tx_power_t.
sl_rail_tx_power_t *	[out]	p_step_ddbm	A pointer to a sl_rail_tx_power_t.

Returns

Power setting table start address. When NULL is returned all out params above won't be set.

The number of entries in the table can be calculated based on output *p_min_ddbm, *p_max_ddbm, and *p_step_ddbm parameters. For example, for *p_min_ddbm = 115 (11.5 dBm), *p_max_ddbm = 300 (30 dBm), and *p_step_ddbm = 1, the number of entries in table would be 186.