[hpsdr] Still no joy getting ghpsdr to run on Ubuntu...

[Jeremy McDermond]

On Apr 10, 2010, at 11:57 AM, n3evl wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> John,
>
> I sent additional log info (see email of 4/8/2010) showing what  
> happens after initozy completes.
>
> You mentioned that initozy tries to set up both Penelope and Janus  
> and that the Janus failure is expected.  Why does Penelope need to  
> be set-up and is there any corresponding set-up for Mercury?

You need to set up some parameters on the audio chip that gets the mic  
audio.  This is done via I2C commands.  My understanding is that it  
was done this way on Penelope first because it was fairly simple.  You  
can't do it on Mercury because there are only a limited number of I2C  
addresses available, and Mercury would be over the limit.  Instead,  
with mercury, we embed these settings inside of the packets we send to  
the board for the audio out and such (the "command and control"  
portion of the packet).

> I thought only Ozy needed to be configured each time the s/w starts  
> since Mercury and Penelope are already pre-configured.

They're not pre-configured, they're pre-loaded with their firmware.   
There's a difference.  The commands in initozy are only setting  
variables on Penelope, they're not uploaded firmware like with Ozy.

>
> Pete, N3EVL
>
>
> John Melton wrote:
>> Hi Pete,
>>
>> the failure in the i2c writes is because initozy tries to setup  
>> both Penelope and Janus.  If Janus is not on the bus then they  
>> fail.  It looks OK.
>>
>> Do you have a log of the messages you get when trying to start  
>> ghpsdr?
>>
>> regards,
>>
>> John g0orx/n6lyt
>>
>>
>
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--
Jeremy McDermond (NH6Z)
Xenotropic Systems
mcdermj at xenotropic.com




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