Mar 26, 2010, 08:00 AM
my karma ranover my dogma
galaxiex's Avatar
Originally Posted by Daniel Wee View Post

What kind of screen are you using to view the OSD display? If you are using a CRT, you will find some of the stuff off the edges of the screen. This can be easily addressed using the SAFEZONEX and SAFEZONEY parameter in the menu. Those parameters allow you to move the display elements further from the edges so you can customize it to make full use of your particular display unit. Usually LCD/goggles will see more of the screen and will require no or less adjustments.


I am using a cheap 13" LCD TV for bench setup.
On that display the OSD info is off the top and left of the screen.

In my goggles the OSD display is fine.

I will try the safezone xy to make it readable on the TV.

Thanks for the help
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Mar 26, 2010, 09:44 AM
Questionable judgement
bracky72's Avatar
Mine came in the mail today. It's gigantic!!
Mar 26, 2010, 03:31 PM
Registered User
barok's Avatar
see that the dosd+ can be powered directly with a 3s lipo.. or the current sensor which is on a lipo (3s)..what is the output power.. concern cuz my vtx and camera are 5volt? do i need to use a regulator?
Mar 26, 2010, 03:46 PM
JettPilot's Avatar
Yeah, you guys might have to start flying big gas planes just to carry the size and weight of the OSD

Mar 26, 2010, 08:04 PM
Registered User

No, you don't need to use a regulator. The DOSD+ will happily run on 5V (actually even lower than that) or up to 5S (and maybe more). I should add that it won't get more than just barely warm when doing this also.

Mar 26, 2010, 08:56 PM
my karma ranover my dogma
galaxiex's Avatar
Ok, I did the solder bridge thing on the current sensor, that is working ok.

On my bench test setup I have connected....

Current sensor + the jumper to power the OSD from the CS.
Dragon Link ch9 to OSD
RSSI to OSD (works great!)
GPS.... I sometimes get 5 sats indoors.
Video cam in.... and out to a monitor.
I was able to use the safezone xy to read all of the data on the monitor.

Now... when all is powered up everything seems fine.

But when I make some changes (such as change metric to "off") and then "save to eprom" it reads "saved" but if I power off and back on all my changes go back to previous settings.
(for example metric goes back to "on")

What am I doing wrong?
Mar 26, 2010, 09:20 PM
Registered User
Update the firmware. Early version didn't save the setting.
Mar 26, 2010, 09:28 PM
my karma ranover my dogma
galaxiex's Avatar
Originally Posted by Daniel Wee View Post
Update the firmware. Early version didn't save the setting.
Thanks Daniel.

At the risk of sounding stupid..... how do I do that?

I have the USB converter thingy and I tried using Hyperterminal but I could not get it to connect/talk to the OSD.

Am I right that the firmware update is done with the USB adaptor?
And where do I get the updated firmware?

Oh wait.. I found the instructions on your web site... ok I'll give it a go....

Mar 26, 2010, 09:45 PM
Registered User
Hi Dale,

Yeah - you can read up the procedure and download the firmwares here:-

If you hook it up to HyperTerm (or preferably TeraTerm Pro) you need to set your port to 38400baud, 8N1. Once you do that, you can use the terminal. You can also see some info about this in the 5th post from the top in the following link:-

Last edited by Daniel Wee; Mar 26, 2010 at 10:17 PM.
Mar 26, 2010, 10:13 PM
my karma ranover my dogma
galaxiex's Avatar
Hi Daniel

I just tried the firmware update using the ds30loader shown here...

I got it all setup ok... hit download and power the osd....and I get...

Initiating download
Sending reset command...ok
searching for bl

and then it times out, nothing happens.

2 questions

When doing this I do not have anything else plugged into the OSD except power and the loader stick, correct?

I have this >

and I have it connected from loader stick to OSD like this...

ground to ground

tx to rx

rx to tx

no other connections. Is that correct?

Mar 26, 2010, 10:15 PM
Registered User
Hi Dale,

Yes, - try reversing your TX and RX connections. See the 5th post in the second link I posted above for some additional troubleshooting tips. Also, you cannot have HyperTerm or any other terminal software running when you try to update using the utility.


p.s. For the rest of you - the latest version at the time of this writing is 4.3 so you guys should update if you have not already done so and if you have a version earlier than 4.3.
Last edited by Daniel Wee; Mar 26, 2010 at 10:56 PM.
Mar 26, 2010, 11:00 PM
my karma ranover my dogma
galaxiex's Avatar
Ok, success!

Got it flashed and all seems working ok on the bench.

It now saves my settings when I cycle power.

Thanks for your help Daniel.
I can tell I'm gonna like flying with this OSD.
Mar 26, 2010, 11:04 PM
Registered User
Fantastic Dale. Be sure to post some videos - that's kinda lacking at the moment. If you get ideas of what you'd like to see implemented, do let me know. This isn't so much a commercial project as it is one for the community.

Mar 26, 2010, 11:36 PM
Registered User
barok's Avatar
hey daniel and john..
my dosd+ will arrive this week..... i opened my CC berg7 to look for the PPM, it is different from the photo illustrated here..
i have a photo of the berg7.. can you point out the ppm.. i think is somewhere where i circled, there are 5 pins in each side..
Last edited by barok; Mar 26, 2010 at 11:49 PM.
Mar 27, 2010, 12:06 AM
Registered User
Hi barok,

That is correct - that's the SiLabs C8051F331 MCU and if we follow the Berg4 layout - the PPM should be on pin 10 (which is counted counter-clockwise from the dot in the corner). However, without a scope, I would not dare to make a guess. Do you have access to a scope? That would be the surest way of finding the PPM signal.


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