Hello guys,
I'm using some samr21-xpro boards and the output radio power of the modul is very strong. I want to reduce the power a little bit. The datasheet ([1], Page 979 - 980) says, I have to manipulate register "PHY_TX_PWR" (Address 0x5).
Does anyone have an idea how the implementation looks like in C.
[1]: Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/SAM-R21_Datasheet.pdf
Hello Oliver,
For that purpose you can use the `at86rf2xx_set_txpower` function [1] (if you are using the raw radio) or use the netdev interface (`set` [2] function with NETOPT_TX_POWER netopt).
If you are using GNRC, you can use `netapi` to set the TX power on a given interface(check e.g this [3])
Cheers, José
[1]: https://github.com/RIOT-OS/RIOT/blob/master/drivers/at86rf2xx/at86rf2xx_getset.c#L243 [2]: http://doc.riot-os.org/structnetdev__driver.html#ad5c8c409276a702877ad50ad09e87a58 [3]: https://github.com/RIOT-OS/RIOT/blob/master/sys/shell/commands/sc_gnrc_netif.c#L1052