[riot-notifications] [RIOT-OS/RIOT] drivers/mrf24j40 : lower TX power on modules with PA/LNA enabled to s… (#16549)

Carton32 notifications at github.com
Tue Jun 15 11:53:40 CEST 2021


Hi @fjmolinas ,

Here : [MRF24J40 Linux driver, l.1149 to 1152](https://github.com/torvalds/linux/blob/009c9aa5be652675a06d5211e1640e02bbb1c33d/drivers/net/ieee802154/mrf24j40.c#L1149)

In the Linux driver, it's only done for MRF24J40MC (the driver doesn't recognize MD or ME models as they are just newer version of MC as I understand). I use MRF24J40MC Linux driver for my device embedding a MRF24J40MD running on Linux.

For your second question, I don't really know. That only models with PA/LNA are concerned was a deduction I made based on the Linux driver (they do it only for the MC model and they don't have something specific for the old MB one).
The issue is not going over 20dBm TX power. The module is just out of the ISM band when emitting at full power on channel 26. This happens only on channel 26 (and maybe on channel 11) as the other channels are in the middle of ISM band.

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