Hi,

It's very simple.

Take a look at the Verilog FPGA code:
http://gnuradio.org/trac/browser/gnuradio/trunk/usrp/fpga/sdr_lib/rssi.v

I actually think it's masking out 2^-11 by default.

See everywhere where it has [25:10] ... this means that it is masking out the bottom 11 bits (10,9,8..0). If you want it to be 2^-10, change all the [25:10] to [25:9].

Then, rebuild.

- George


[EMAIL PROTECTED] wrote:
Hi,
I'm working on RSSI value and reading mailing lists I have understood how RSSI
is calculated. In the algorithm of RSSI in verilog alpha value is 2^-10 because
the shift is made on 10 bits. I want to change alpha value (decrease or
increase) but I don't understand how I can change it in the algorithm in
verilog. Could you help me?

Thank you very much.






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