nRF21540 is not compatible with nRF54L15

[Ziyao Zhou]

Hi,

Two month ago I have test nRF21540 and nRF54L15, they cannot word with each other.

However, I notice these days updated with

https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/app_dev/device_guides/fem/index.html 

 

I have tried again but it still cannot work

My config is

#FEM general
CONFIG_MPSL_FEM=y
CONFIG_MPSL=y
CONFIG_MPSL_FEM_NRF21540_GPIO=y
CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=y
CONFIG_MPSL_FEM_NRF21540_TX_GAIN_DB=20
CONFIG_MPSL_FEM_NRF21540_RX_GAIN_DB=13
CONFIG_MPSL_FEM_NRF21540_RUNTIME_PA_GAIN_CONTROL=y
CONFIG_BT_CTLR_TX_PWR_ANTENNA=20
# CONFIG_BT_CTLR_TX_PWR_PLUS_8=y

My overlay is:

/ {
	nrf_radio_fem: name_of_fem_node {
	   compatible  = "nordic,nrf21540-fem";
	   tx-en-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
	   rx-en-gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
	   pdn-gpios   = <&gpio0 2 GPIO_ACTIVE_HIGH>;
		mode-gpios   = <&gpio0 3 GPIO_ACTIVE_HIGH>;
 };
}; //54L15