Re: [Discuss-gnuradio] Auxiliary ADC

[Christoph Thein]

> On 01/19/2010 10:35 AM, Christoph Thein wrote:
> >> On 01/19/2010 09:47 AM, Christoph Thein wrote:
> >>> Hi,
> >>>
> >>> is there a possibility to read the data coming from the auxiliary ADC
> >>> (AD7922) at the moment?  I couldn't find any hint in the code or on the
> >>> mailing list that could point me to a good direction to start.
> >>>
> >>> Just out of interest: What should the auxiliary DAC (AD5623) be used
> >>> for?
> >>
> >> The aux ADCs can be read, and they are used with some of the
> >> daughterboards to measure received signal level (RFX900-RFX2400) or
> >> temperature (WBX).
> >>
> >> The AUX DACs are used to set gains on most of the daughterboards.
> >>
> >> Matt
> >
> > Hi Matt,
> >
> > Thanks for your answer.
> >
> > is the measuring also possible for the RXCV2450 or what is missing to
> > achieve it?
> 
> Yes, the XCVR2450 also has RSSI measurement capabilities.
> 
> Matt
> 

The USRP1 uses the read_aux_adc function to get the values. Does the read_gpio 
replace it for the USRP2? If not how is the USRP2 accessing the aux ADC?

Cheers,

Christoph