nrf21540 Dk radio test example testing

[Muhammad Usman]

Hi All!

I am using nrf21540 DK, NCS V2.3.0, and Vscode Studio. 

An example I am using is the radio test. Build and loaded the code into the nrf21540 Dk. And Run the following commands on uart terminal 

On RSSI Viewer (connected the nrf52833 DK)

VScde 

I also monitored the SPI Signals on P1.13 ,1.14, and 1.15  but no signal during I was sending the commands as mentioned on the top.

my proj.conf file is 

CONFIG_CONSOLE_HANDLER=y
CONFIG_SHELL=y

CONFIG_DYNAMIC_INTERRUPTS=y

CONFIG_NRFX_TIMER0=y

CONFIG_ENTROPY_GENERATOR=y


CONFIG_MPSL=y
CONFIG_MPSL_FEM=y
CONFIG_MPSL_FEM_ONLY=y
CONFIG_MPSL_FEM_NRF21540_GPIO_SPI=y
CONFIG_MPSL_FEM_NRF21540_RX_GAIN_DB=0
CONFIG_MPSL_FEM_NRF21540_TX_GAIN_DB=20

Can you please help me in this regard where is the issue that I am getting a lower dbm value.

Thanks & Regards,

Muhammad Usman

[Priyanka]

Hi Muhammad,

Just to make sure, you have referred this documentation and build similar to what is mentioned here?

Best Regards,

Priyanka

[Muhammad Usman]

Hi Priyanka!

Thank you for the response! Yes, I followed that document.But still the same issue

Best Regards,

Muhammad Usman

[Muhammad Usman]

Hi Priyanka Gopal 

I followed the following link as well 

 NRF21540 Shield + NRF52833 DK - lower RSSI with shield than without 

 but still the same results. can you please help me in this regard?

Best Regards,

Muhammad Usman

[Priyanka]

Hi,

I will look into this and also consult internally. Please expect a delay as we are short-staffed due to the easter vacation.

-Priyanka

[Muhammad Usman]

Hi, 

Thank you, I will wait for your response!

Thanks & Regards,

Muhammad Usman

[Muhammad Usman]

Hi Priyanka!

Any response from your team? Is there any other way to confirm that nrf21540 is operational or not? Or is any example available to read the internal registers of nrf21540 via SPI? 

Thanks & Regards