External antenna J1 insert connector in nRF52833-DK

[ian_student]

Hello! I use EK42423-03 and 52833-DK

Previous case 

I understand plugging in the SWF connector, Will disconnecting from the PCB antenna and routing the signal to the cable.

EK42423-03-Datasheet

LS ->GND ; CTRL -> P0.26 ; GND -> GND ; VDD -> VDD ; J1 RFC -> J1 ANT 

First follow this pic.

I added code in nrf52833dk_nrf52833.dts

    ant1: ant_1 {
			gpios = <&gpio0 26 GPIO_ACTIVE_LOW>; /*CTRL*/
			label = "ANT 1";
	};

Using multimeter can measure from RF2 to Refer to the pic.

RF1 = 0Ω 

RF2 = 20Ω 

But why? EK42423-03 "J1"  insert 52833-DK "J1" After Refer to the pic.

RF1 = 0Ω 

RF2 = 0Ω 

I do not know what is causing.

Sorry, it's been two months and I still can't do it...

But I still hope you can give me advice!

Thanks again for your support.

[ketiljo]

Nut sure why to try to ohm between the center conductor and the signal? Set the logic level manually first and get the switch sorted. Then check the code and see if you can set the pins high and low. 

[ian_student]

I am using for direction_finding_connectionless_rx