Re: [Discuss-gnuradio] read_aux_adc

Thanks for you reply, After reading the code, I think the argument 1,0 should be right.

But the result is strange. when there isn't a sender , the value returned is always 12. While there is a sender and the distance between sender and receiver is less than 1m, the value returned is between 0~24 (maybe less than 12), no matter what the tx-amplitude of sender is. Does the result make sense?

Thanks a lot.

P.S.

the result with a sender:

4 24 8 20 24 16 20 20 20 8 8 20 16 20 20 16 4 12 24 0 20 24 8 20 0 8 12 16 0 16 4;

the result without a sender:

12 12 12 12 12 12 12 12 12 12 12 12 12 12

2010/6/1 Eric Blossom <eb@comsec.com>

On Mon, May 31, 2010 at 04:42:47PM +0800, jf w wrote:
> I'm using RFX2400 daughterboard on side B, my arguments are  slot=2
> which_adc = 0 ,and I'm calling it from python.
>
> Your question inspire me that my arguments may be wrong. I think the slot
> argument should be 3(SLOT_RX_B), but I don't know the meaning of which_adc
> and how to set it.
>
> There are two aux_adc on one ad9862:aux_adc_a and aux_adc_b , but there are
> four pins : aux_adc_a1,aux_adc_a2, aux_adc_b1 and aux_adc_b2. But what is
> the input of the signal on these pins?
>
> Thanks a lot.
>

 /*!
  * \brief Read auxiliary analog to digital converter.
  *
  * \param which_side  [0,1] which d'board
  * \param which_adc   [0,1]
  * \returns value in the range [0,4095] if successful, else READ_FAILED.
  */
 virtual int read_aux_adc (int which_side, int which_adc) = 0;

Try

 v = u.read_aux_adc(1, 0)

I think the RSSI is on adc 0, but not 100% sure.

Eric

--
Thanks,
Jianfei
BUAA