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<div class="moz-cite-prefix">Steve,<br>
<br>
Sorry, I missed the additional pictures in the pcb directory.
Obviously there are more jumpers there that can hopefully be
eliminated in a V2 board.<br>
<br>
Thanks,<br>
<br>
John<br>
<br>
On 4/13/2014 5:01 PM, John Marvin wrote:<br>
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<div class="moz-cite-prefix">Steve,<br>
<br>
This is really cool! I suspect this is going to take off,
especially if TAPR is willing to produce finished boards (after
a little more shakedown and polishing by early adopters). Even
if not, I've been wanting to take my surface mount skills to the
next level, but wasn't willing to try something as expensive and
as complicated as a Hermes board from scratch.<br>
<br>
So, who wants to be in the first wave of early adopters? Can we
get together a group purchase of PCB's and components? Perhaps
there should only be a small number of people in the first wave,
who are willing to build immediately and help refine things for
the next group. I'm willing to help or coordinate things, but I
would need help with understanding and completing the process of
preparing the gerber files for submitting to a PCB vendor. I
would also need someone else to do any modifications that might
be required (since I am not familiar with the tools involved),
based on Steve's replies to the questions below?<br>
<br>
Some quick questions and a request:<br>
<br>
1) The picture you provided showed some small jumper wires, one
on the FPGA board and one on the Hermes Lite board. What were
these required for? If required, I'm assuming the Hermes Lite
board can be modified to remove the need for the jumper wire,
correct? Are there any more jumpers that are not visible?<br>
Any other changes you would suggest for a version 2 board?<br>
<br>
2) Any chance you could provide higher resolution photos of both
the front and back of the Hermes Lite board without the FPGA
board attached?<br>
<br>
Thanks!<br>
<br>
John<br>
AC0ZG<br>
<br>
On 4/13/2014 4:05 PM, Steve Haynal wrote:<br>
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<div dir="ltr">Hello List,
<div><br>
</div>
<div>I have been working on a lower cost variant of the Hermes
which I am calling Hermes-Lite. All the details are at </div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="https://github.com/softerhardware/Hermes-Lite">https://github.com/softerhardware/Hermes-Lite</a></div>
<div><br>
</div>
<div>The design is entirely open source and open hardware. The
cost of all materials (including the BeMicro SDK board) is
around $150. The FPGA firmware is a port of the Hermes RTL
and is compatible enough to work with existing Hermes
software. The ADC/DAC is the AD9866 12-bit integrated device
intended for cable modems which I have repurposed as a 0-36
MHz transceiver. RX/TX tests of my prototype show good
performance. The github site has instructions for listening
to the receiver online. </div>
<div><br>
</div>
<div>I had hoped to have a more polished project before
releasing, but I am starting a new job tomorrow and will
have limited time for this project. Any help on this project
or derivatives is welcome.</div>
<div><br>
</div>
<div>Thank you to all the people at openhpsdr who developed
the Hermes and provided valuable IP to reuse in this
project. </div>
<div><br>
</div>
<div>73,</div>
<div><br>
</div>
<div>Steve</div>
<div>KF7O</div>
</div>
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