Combined WiFi and BLE Radio testing for nRF7002DK

[uh-ashishlele]

Hello,

We are in certification stages for our custom product based on the nRF7002DK. Our application requires BLE and WiFi to be operational simultaneously. Consequently, the certification process also requires capability to test both WiFi and BLE radio simultaneously.

We have been referring to the existing separate nordic samples for BLE and WiFi radio tests but unable to find a sample/ guide which can make both work as part of the same application.

Is there any way to achieve this where the radio tests can be performed simultaneously for WiFi and BLE through a common build?

Thanks,

Ashish 

[Håkon Alseth]

Hi,

 

1. Yes, this is available in v2.6.1.

2. You can use RTT (this will require additional configuration), but if you have two unused GPIOs (routed to test points for instance) to use instead, that is recommended.

Here's an example configuration for enabling RTT:

CONFIG_SERIAL=n
CONFIG_SHELL_BACKEND_SERIAL=n
CONFIG_RTT_CONSOLE=y
CONFIG_UART_CONSOLE=n

CONFIG_USE_SEGGER_RTT=y
CONFIG_SHELL_BACKEND_RTT=y

place this in the ncs/nrf/samples/peripheral/radio_test/boards/nrf7002dk_nrf5340_cpuapp.conf and it should be automatically detected when you configure the samples/wifi/radio_test sample with CONFIG_NRF700X_RADIO_TEST_COMBO=y set.

Let me know if you run into any issues or see problems.

 

Kind regards,

Håkon

[uh-ashishlele]

Hi Håkon,

For the WiFi radio test, there are additional requirements that need to be fulfilled for certifications, mentioned below:

1. Data rate configuration for WiFi - Ability to configure 1Mbit and 2Mbit
2. Modes configuration for WiFi as follows:
   1. For 2.4 GHz
      1. B mode: data rate 1 and 11 mbps
      2. G mode - data rate 6 and 54 mbps
      3. N mode - data rate MCS0 and MCS7
      4. Channels 1 to 13 as per ETSI 
   2. For 5 GHz
      1. A, N, AC modes

Are the above requirements also supported?

[Håkon Alseth]

Hi,

 

for the different data rate / tx characteristic outputs, please see nAN-046, specifically this section:

https://docs.nordicsemi.com/bundle/nan_046/page/APP/nan_046/wifi_radio_transmit_test.html

 

uh-ashishlele said:

Channels 1 to 13 as per ETSI 

Please set the corresponding country code, usually GP1 for europe, according to this page in the above mentioned application note:

https://docs.nordicsemi.com/bundle/nan_046/page/APP/nan_046/setting_regulatory_domain.html

 

Kind regards,

Håkon