can nrf_gzll_set_tx_power() and nrf_gzll_set_max_tx_attempts() be set dynamically?

[Andrew Kohlsmith]

Hello,

I have a Gazell application where I'd like to adjust the transmit power dynamically. I can't find any definitive answer in the API, so I want to ask here. Can I call nrf_gzll_set_tx_power() at any time, or do I have to prepare the stack and/or radio before changing the tx power?

Similarly, I have some packets which I'd like to treat more like UDP -- I don't care if they don't get through. Can I call nrf_gzll_set_max_tx_attempts() before sending a packet to configure how aggressively I want to make sure it gets across?

Thanks.

[ovrebekk]

Hi Andrew

At the moment the library needs to be disabled for changes like these to be performed. Otherwise you will simply get an error message in return when trying to change something.

You could get around the limitation on the tx_power function simply by writing to the TXPOWER register in the radio, but for the max_tx_attempts call there is no hack available.

I have reported this limitation to the developer, and he agreed this was a unnecessary limitation in the library, so we might try to change it in a future update.

Best regards
Torbjørn

[Andrew Kohlsmith]

This would be very helpful. Gazell is a great step up from ESB, but not being able to "stream" data is a limitation for us.

[ovrebekk]

Hi

Gazell was implemented back when PC peripherals were our main source of income, and is very much intended for use in keyboard, mouse and remote control applications.

As such it is a bit restricting if you are trying to do different things, and in some cases I would say it is better to design your own protocol on top of ESB, even if it requires more work on the software side.

Best regards