Switching Antennas

RE: Switching Antennas

Dmitry — Mon, 06 Apr 2020 07:31:26 GMT

Hi,

[quote userid="85966" url="~/f/nordic-q-a/59880/switching-antennas/243529"]I am using the EV1HMC321ALP4E eval board. [/quote]

Yes, config is right. It's safer to add RADIO->CLEARPATTERN=1 before configuring pattern.

[quote userid="85966" url="~/f/nordic-q-a/59880/switching-antennas/243529"]Also what other pins would you suggest. [/quote]

Look at "Pin assignment" section in product spec, you can choose any pin where "recommended usage" is not "Standard drive, low frequency I/O only".

[quote userid="85966" url="~/f/nordic-q-a/59880/switching-antennas/243529"]I was thinking of using 1.08 and 1.07, but I am not sure about their hexadecimal values[/quote]

They're mapped to 0x28 and 0x27, but why do you need "magic" numbers? Use NRF_GPIO_PIN_MAP(1, 8).

RE: Switching Antennas

Siddharth Venkatesh — Sun, 05 Apr 2020 21:42:56 GMT

I am using the EV1HMC321ALP4E eval board.

Also what other pins would you suggest.

I was thinking of using 1.08 and 1.07, but I am not sure about their hexadecimal values.

Thanks

RE: Switching Antennas

Dmitry — Sun, 05 Apr 2020 19:17:21 GMT

Hi,

what RF switch IC do you have? It's hard to say whether your config is right without looking at schematics.

Antenna 1 is not used in switching sequence, only for reference period - is it your intention?

P0.19 is marked as "Standard drive, low frequency I/O only", it's better to choose another one.