That's a great point to start with, and as always, first rule, RTFM, you're absolutely right.
I've started reading it and it's a little complicated. The part that I think it's referred on what I need is:
Due I'll need to connect on this board two radio (one NRF24L01+ and one RFM69), I fear to make some damages, so I ask here.
I would start with one radio first, the RFM69. But here comes the first question it's not totally clear for me:
1. Is the BananaPi able to have two radio connected on the GPIO?
Seems yes if the above doc speeks about SPI 0 - 1 - 2 all with required MOSI, MISO, SCK, CS....
But I've read somewhere for RPi the following:
2. I'ts valid for BananaPi as well?
BTW then, let's start with the first radio assuming I can start with bus0. The overlay should look like:
That should create a "/dev/spidev***" device.
This should give me those connections GPIO available:
MOSI: PI12 -> CON3-PORT19
MISO: PI13 -> CON3-PORT21
SCK: PI11 -> CON3-PORT23
CS: PI10 -> CON3-PORT24
Then I'm missing the power 3.3v (CON3-PORT01), ground (CON3-PORT06) and IRQ, which should be ok any normal PIN (i.e. CON3-PORT22).
Until here makes it sense??
Sorry, but as written above I fear I could make some mistrakes and damage the devices.
Assuming the above works, how can then I add a second spidev?
This is something I cannot understand from the documentation.