[hpsdr] Janus - Ozy - SDR1000 simplicity

[Jim Sanford]

How will it work with a homebrew QSD/QSE, probably like the softroc's?  
I may eventually want to control one of the analog devices DDS boards 
over the serial interface?
I'd assume that hacking the code will be possible .. .

Thanks & 73,
Jim
wb4gcs at amsat.org


Bill Tracey wrote:

>***** High Performance Software Defined Radio Discussion List *****
>
>Joe - thanks for the kind words on my code -- some clarifications in 
>line below
>
>Regards,
>
>Bill (kd5tfd)
>At 09:23 AM 3/6/2007, Joe - AB1DO wrote:
>  
>
>>***** High Performance Software Defined Radio Discussion List *****
>>
>>
>>Hi all,
>>
>>I am currently working with Phil Harman on writing a manual on how 
>>to operate the Janus/Ozy combo with the SDR-1000. Because of all the 
>>discussions going on on the reflector about FPGAs, CPLDs, EEPROMs, 
>>JTAG and what have you I (and I assume other mere mortals like me) 
>>was expecting a separate initialization procedure would be required, 
>>not to mention special cables. NOT SO!
>>    
>>
>
>For cables one will need a 25 pin male male straight thru cable to go 
>from Ozy to SDR 1K,  2x 1/8 stereo patch cables for IQ in and out 
>(assuming one connects mic and speakers direct to Janus).  For the 25 
>pin male-male cable I'm currently using a 1 foot long home made 
>ribbon cable with IDC connectors - may not be ideal in a hi RF 
>environment.   For the audio interconnect I'm using Radio Shack 
>#42-2497 ( 
>http://www.radioshack.com/product/index.jsp?productId=2102970&cp=2032058.2032228.2032255&parentPage=family 
>)
>
>  
>
>>Through our various back and forths on text etc I discovered that 
>>Bill Tracey and he have really simplified it. Just to make sure that 
>>anyone considering buying Janus/Ozy to work with the SDR-1000, but 
>>holding off is not doing so due to wrong assumptions I thought I'd 
>>share it with the group here.
>>
>>Janus will be shipped with its CPLD pre-programmed, as will Ozy with 
>>its EEPROM (someone correct me if I'm wrong). Ozy is connected to 
>>the PC via a USB cable. All the relevant audio connections are made 
>>to/from Janus and the SDR-1000, etc and for control a parallel cable 
>>between Ozy and SDR-1000. Then just select Janus as you would any 
>>other sound card in PowerSDR. That's it. Ozy's FPGA is then 
>>automatically loaded through the USB and you're ready to roll. 
>>Future updates to Janus's CPLD and Ozy's FPGA will all occur through 
>>Ozy's USB connection.
>>    
>>
>
>
>The CPLD will be pre programmed, as will the Ozy EEPROM, however the 
>programming in the Ozy EEPROM will only be for self test - the Ozy 
>FPGA is configured over USB when we bring the device up for use with 
>PowerSDR.
>
>There will actually be 2 selections/configurations one has to do in 
>PowerSDR -- one to select Janus/Ozy as the audio device and 1 to 
>select it as the control device.  This is to allow one to use the 
>audio section without using the control section.  I've not tested 
>using just the control section and not the audio section so that 
>configuration may or may not work.
>
>Updating the CPLD via USB is a bit of code still to be written.  I 
>believe it is doable, but the code (FX2, Ozy FPGA, PC side utility) 
>remains to be written
>
>  
>
>>If you think about it, it's even simpler than installing a sound 
>>card, as there is no driver to install, no mixer to deal with, 
>>nothing. Just hook up and run.
>>    
>>
>
>One will need to install the libusb drivers to talk to Ozy.  Not 
>quite hook it up and run but close.
>
>  
>
>>Hats off guys!
>>
>>73 de Joe - AB1DO
>>    
>>
>
>
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