MAX32666 RF Testing question

[sullivanmj]

In the RF_Test Example for MAX32666, there is some code that appears to be setting TX power for the continuous transmission tests:

msdk/Examples/MAX32665/Bluetooth/RF_Test/main.c

Lines 849 to 856 in eeb59b5

	void setTxPower(int8_t power)
	{
	// TODO(BLE): validate value
	txPower = power;
	llc_api_set_txpower((int8_t)power);
	LlSetAdvTxPower((int8_t)power);
	printf("> Power set to %d dBm\n", power);
	}

I see that there is come code enforcing that when the function is called, the argument needs to be one out of -10, 0, or 4. I assume these values correspond to a value in dBm. If that is the case, can we go higher than 4? Or if not, what is the argument that I can pass in order to get the highest TX power possible?

[EricB-ADI]

-10 dBm, 0dBm, and 4 dBm are the 3 options that it can use. If you pass a value that is not one of those, you will get the closest available power. For example, -1dBm would give you 0dBm and -8dBm would give you -10dBm. The MAX32666 is limited to 4dBm max. There is no macro for max power. The maximum power is 4dBm.