Re: [Discuss-gnuradio] AGC using RXPGA on MxFE

[Eric Blossom]

On Sat, Jul 23, 2005 at 04:35:05AM +0500, Ahmad Sheikh wrote:
>
> But using usrp.source_c().set_pga() means that the feedback control
> be on the python level, which would mean that there would be a large
> latency in the gain control. Isn't there some way to do this on the
> hardware?
> -Ahmad

The PGA is controlled over the SPI serial bus from the FX2 (as are all
the AD9862 registers).  You could hack the FX2 firmware to control it,
but I'm not sure how you'd make the measurement.

Eric


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