<div dir="ltr"><p dir="ltr">This offer still available if anyone wants to take me up on it. If I don't hear back in the next two weeks I'll put it to some other use.</p><p>Kind Regards,<br>Andrew</p>
<br><div class="gmail_quote"><div dir="ltr">On Tue, Oct 20, 2015, 8:47 AMÂ Andrew Jorgensen <<a href="mailto:andrew@jorgensenfamily.us" target="_blank">andrew@jorgensenfamily.us</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Greetings,<br>
<br>
<br>
Many Linux hams have written elsewhere about wanting support for the<br>
Connect Systems CS700 or the Tytera MD-380 DMR radios in CHIRP. I<br>
don't personally have much time to devote to the task, but I will soon<br>
have an MD-380 which I will give (free as in beer, down from $140) to<br>
a developer who wants to get into DMR and put in the time to add<br>
support to CHIRP.<br>
<br>
The two radios use the same configuration format, based on DfuSe, and<br>
method of writing the config - a modified USB Device Firmware Update<br>
(DFU). The MD-380 is very popular right now, because of its price, and<br>
it seems that similar radios will be on the market for some time to<br>
come.<br>
<br>
Some reverse engineering and USB debugging on Windows is likely<br>
required. Existing open source DFU utilities have not (for me)<br>
succeeded in writing the configuration, but there are a number of<br>
examples of code (including Python code) for handling DfuSe files, and<br>
some documents on some of the specific layout of the configuration.<br>
<br>
I've been told that CHIRP is (almost?) entirely serial-based so far. I<br>
don't know how much of a wrench that throws in this. There's also some<br>
trepidation about accidentally bricking the radio, but I would guess<br>
that concern is common here.<br>
<br>
I'm a Linux Systems Engineer and mostly write code in Python, but I'm<br>
just too busy with kids and work to believe that I'd be able to make<br>
much progress on my own. I'm happy to test from time to time, and to<br>
help figure out the file format and USB protocol.<br>
<br>
If you're sufficiently interested in DMR and in adding a new radio to<br>
CHIRP, and you believe you can pull it off, please let me know<br>
off-list. I expect no payment, and I'm accepting the risk that the<br>
work may never get done. I've decided opening DMR to the world of hams<br>
who don't own any Windows machines is worth that risk.<br>
<br>
I hope there's nothing inappropriate about making this offer on this<br>
list, and that you'll all forgive me if there is.<br>
<br>
<br>
Kind Regards,<br>
Andrew Jorgensen<br>
KC7RBW<br>
</blockquote></div></div>