Hi guys,
I wanted to understand one thing.
It seems that configuring in my .conf file the following KCONFIG for 21540 in GPIO mode, allow me to work with a stable version of BLE
CONFIG_MPSL=y CONFIG_MPSL_FEM=y CONFIG_MPSL_FEM_NRF21540_GPIO=y CONFIG_MPSL_FEM_NRF21540_TX_GAIN_DB=0 CONFIG_MPSL_FEM_NRF21540_TX_GAIN_DB_POUTA=0 CONFIG_MPSL_FEM_NRF21540_TX_GAIN_DB_POUTB=0 CONFIG_MPSL_FEM_NRF21540_RX_GAIN_DB=0
Stable means that discovery and service search is working properly, and I'm able to complete the connection establishment and changing MTU accordingly to my connection.
I suppose, as described somewhere on the docs, that connection PHY type is 1M.
BUT Changing to other values the TX_GAIN and RX_GAIN, or comnmenting them, seems to be quite the same thing in terms of power of the BLE signal.
So, using for example the central_uart example as a base starting point, and peripheral_uart as peripheral device, in order to set the high range possible with both 21540DK, what is the configuration to set up ? Are theese KCONFIGs right ?
Thanks a lot!
Enrico
