KW36 Configure GFSK channel to look like BLE channel (bandwidth, whitening etc)

[stephenlangstaf]

For approvals testing of my product I want to use the features of Gap_ControllerTest() [i.e. TX & RX tests] but I don't have the FLASH memory space available to include the full-featured host library required by that API.

I do have a GFSK instance already allocated in my build (using default parameters at the moment) so I thought that I could implement similar test features myself, but I have a doubt as to what parameters I should I use for the radio/packet/bit configuration in order to utilise a radio channel in a way similar to BLE - for example, using the same bandwidth and whitening parameters as BLE.

GENFSK_radio_config_t *radioConfig

GENFSK_packet_config_t *packetConfig

GENFSK_bitproc_t *bitProcConfig

Using the defaults mDefaultRadioConfig, mDefaultPacketConfig, mDefaultCrcConfig and mDefaultWhitenerConfig I *think* that I am seeing a radio bandwidth much wider than the 2MHz channel used by BLE - it looks like the GFSK signal is taking up 6MHz but I'm no expert at driving the spectrum analyser!

I suppose that what I am asking is whether the GFSK radio setups in any/all of the demo projects (e.g. genfsk_conn_test) provide a similar radio footprint to BLE?

[estephania_mart]

Hello,

The only example or guide we have available is the following

Hybrid (Dual-Mode) Bluetooth Low Energy and GenFSK Heart Rate Sensor Application

Still, those are the only guides available.

Regards ,
Estephania

[estephania_mart]

Hello,

When talking about the BLE supported radio, we used to provide the BLE HCI Application which basically allows the tester to set the radio in Tx/Rx mode by using HCI transmitter/receiver test commands. These commands are part of the BLE specifications at the HCI level.

In this case you can check the hci_bb example in the SDK , also I would strongly recommend you to check the following application note and verify if this works for you.

Regards,
Estephania

[stephenlangstaf]

Hi @estephania_mart ,

Thanks for your response.

Unfortunately it does not actually answer my question, which is how I can configure a GFSK channel to simulate a BLE channel.

I can, of course, develop and load a completely different application into the radio in order to put it into a test mode (bearing in mind that my hardware does not have a serial connection to the outside world) but I wanted to explore the possiblity of incorporating the test modes into the main application.