www.shaneburrell.com Telecom – Electronics – HAM Radio – Test Equipment – Rescue

22Mar/150

SBHT – Rough Layout Finished .

FullSizeRender 3 FullSizeRender 4 FullSizeRender 5Screen Shot 2015-03-22 at 2.48.22 PM Screen Shot 2015-03-22 at 2.48.02 PM

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23Mar/122

DMR NEXEDGE VOIP DSTAR Switch / Trunking

I've been working on a hardware to spin up a homegrown DMR/NEXEDGE/VOIP/DSTAR switch using freeswitch, some AMBE hardware, and common DMR radios (Hytera and Mototrbo) for use in Ham.  I have been working a board design I did last year to handle the AMBE codec.  The basic idea is to have a way to convert the AMBE codec to G711 to allow interface to other systems.  It also allows trunking/routing between systems.  If this something you might be interested in doing or helping with please let me know.  I'm really interested in hardware donations including NEXEDGE, DSTAR, and Hytera gear.

 

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1Feb/120

Linux and DV-RPTR Programming and Setup

Programming the DV-RPTR is very easy on most distros.  The easiest tool to use on linux is dfu-util.  First power your DV-RPTR with the program pins jumper. Then connect the USB Connector.  Here is an example of how to program with dfutool.

First find the DFU device you want...

dfu-util --list
dfu-util - (C) 2005-2008 by Weston Schmidt, Harald Welte and OpenMoko Inc.
This program is Free Software and has ABSOLUTELY NO WARRANTY

dfu-util does currently only support DFU version 1.0

Found DFU: [0x0403:0x92ae] devnum=0, cfg=0, intf=0, alt=0, name="UNDEFINED"
Found Runtime: [0x413c:0x8187] devnum=0, cfg=0, intf=3, alt=0, name="UNDEFINED"

sudo dfu-util -d 0x0403:0x92ae -D DV-RPTR-Firmware_V110e.fw
dfu-util - (C) 2005-2008 by Weston Schmidt, Harald Welte and OpenMoko Inc.
This program is Free Software and has ABSOLUTELY NO WARRANTY

dfu-util does currently only support DFU version 1.0

Opening DFU USB device... ID 0403:92ae
Found Runtime: [0x0403:0x92ae] devnum=13, cfg=0, intf=0, alt=0, name="DV-RPTR"
Claiming USB DFU Interface...
Setting Alternate Setting #0 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
Device returned transfer size 512
bytes_per_hash=586
Copying data from PC to DFU device
Starting download: [##################################################] finished!
state(7) = dfuMANIFEST, status(0) = No error condition is present
state(2) = dfuIDLE, status(0) = No error condition is present
Done!

If you want a development enironment just install eclipse then goto the eclipse marketplace and install avrstudio.  Its an older version but still works on linux.  The controller software works perfectly on linux by installing mono and running the exe with it.

 

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30Jan/120

Digital RF Modem Board AVR32

This is my initial work with developing a digital modem board for RF use.  I have various digital modulations working on this prototype.  The AVR32 isn't quite enough to do everything on board.

 

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