Hello,
NCS1.9.99, vscode, nRF5340-DK + nRF21540-EK


ant-sel-gpios = < &arduino_header 0xa GPIO_ACTIVE_LOW >;
above line is mean: pin P1.06 , only ANT1 ?

mode-gpios = < &arduino_header 0x8 GPIO_ACTIVE_LOW >; //P1.04
above lines mean: max TX and RX power ?

above mean: don't use spi for 21540 ?
Best regards