Coexistence APIs

Configure PTA table

int nrf_wifi_coex_config_pta(enum nrf_wifi_pta_wlan_op_band wlan_band,bool antenna_mode)

This function initializes the PTA table in the coexistence hardware for either separate antennas or shared antenna as per the configuration. This function is to be called immediately after successful Wi-Fi® connection or reconnection and returns 0 on success. The PTA table configurations are different when Wi-Fi is in the 2.4 GHz band or 5 GHz band, where wlan_band specifies which Wi-Fi band is present:

• NRF_WIFI_PTA_WLAN_OP_BAND_2_4_GHZ
• NRF_WIFI_PTA_WLAN_OP_BAND_5_GHZ

Set the input parameters:

• Separate antennas—antenna_mode = 1
• Shared antenna—antenna_mode = 0

Configure non-PTA registers

int nrf_wifi_coex_config_non_pta(bool antenna_mode)

This function is used to configure non-PTA registers of coexistence hardware to cater for either separate antennas or a shared antenna. This function is to be called during application initialization and returns 0 on success.

Set the input parameters:

• Separate antennas—antenna_mode = 1
• Shared antenna—antenna_mode = 0

Configure switch SW2

int nrf_wifi_config_sr_switch(bool antenna_mode)

This function configures SW2 to A2 for the case of separate antennas and to SW1 and A1 for a shared antenna. This function is to be called during application initialization and return 0 on success.

Set the input parameters:

This API is based on the nRF7002 Development Kit (DK) where P0.24 is connected to SW2. Verify that this configuration is correct on your board or make appropriate changes. This switch and the corresponding control are only for the purposes of supporting configurations of both shared and separate antennas on the DK as reference. Typically, a final product would support one or the other.

Reset coexistence hardware

int nrf_wifi_coex_hw_reset(void)

This function resets the coexistence hardware and returns 0 on success. Configuration APIs nrf_wifi_coex_config_non_pta() and nrf_wifi_coex_config_pta() must be called after this function to initialize coexistence in the required mode. This effectively disables coexistence module.

Enable or disable nRF70 Series Coexistence Interface

void mpsl_cx_nrf700x_set_enabled(bool enable)

This function enables or disables the nRF70 Series Coexistence Interface from the Bluetooth® LE/IEEE 802.15.4 controller device. Clients of MPSL CX APIs are granted or denied access depending on the state of the nRF70 Series GRANT signal.

The Coexistence Interface is disabled by default. It can be enabled by calling this function with enable=true or disabled by calling enable=false.