Re: [Discuss-gnuradio] What does the EEPROM do on rfx board?

[Matt Ettus]

hanwen wrote:
> Hi, everone,
> I am modifying some rfx2400 boards for clock sync and phase coherent
> with motherboard. I found this was achieved already when I changed the
> location of some resistors. I send some signals and received with the
> same board, the received signal constellation is not rotating. So, I
> think the clock is successfully syncronized.
> But I didn't burn the eeprom, so I want to know what does the burned
> eeprom do?
> I saw there are several version of eeprom fireware, rfx2400_tx,
> rfx2400_mimo_a, rfx2400_mimo_b, what is the difference with mimo_a and
> mimo_b?

In this case, it happens that the non-mimo and mimo-b configurations
don't need to be controlled differently from software, so it works
without you making any change to the EEPROM.  You should make the change
anyway, and burn the eeprom, so the board identifies as what it really is.


Matt