[hpsdr] Latest FPGA code

[Joe Martin K5SO]

Dave,

Thanks for your message to the reflector.  As I noted in my email  
message to you yesterday informing you of this situation, describing  
it for you, and saying that I am currently investigating this issue it  
is at the moment not conclusive that the problem is with the new  
firmware as the firmware works fine with all of my versions of  
PowerSDR with Metis or Ozy whether they are operated as multiple  
receivers on a single Mercury or multiple Mercury boards.

Further, the SYNC bytes you mention that are not found by your program  
are actually present in all the buffers received and displayed by your  
server program even when your server program doesn't find them.  They  
simply are not the leading bytes in the buffers as they should be.

Of course, it may turn out that there is an issue with the firmware or  
the issue may turn out to be with the ghpsdr3 server code instead,  
perhaps incorrect information is being passed to Metis from your  
server program.  Incorrect control & command bytes would explain Dave  
KV0S's observation about the central peak that doesn't move when  
frequency is changed.  The frequency information is passed via the C&C  
bytes of course and if there's a problem there the additional  
receivers will not be updated properly with correct frequency  
information.

Now that I have your program to work with, in addition to my PowerSDR  
versions, I'm sure we can discover the culprit that's causing this  
issue.

More on this later as we track it down.

73,  Joe K5SO

On Nov 13, 2011, at 9:32 AM, David McQuate wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> Problems with new fpga code with > 1 receiver on one Mercury ???
>
> Using ghpsdr3-Windows (new version that works with Ozy or Metis),
> whenever # receivers is > 1 AND Penelope is on Atlas bus,
> the 3 Sync bytes are not found.  This happens only using Metis, not  
> Ozy.
>
> (All is fine with up to 4 simultaneous receivers on on Mercury if
> Penelope is NOT connected to Atlas.
>
> I'm using
> Mercury_V3.1
> Penelope_V1.6
> Metis_V1.6
> Ozy_Janus_V2.1
>
> 73,
> Dave
> wa8ywq
>
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