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Old Jan 16, 2013, 01:06 PM
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Latvia, Riga
Joined Jan 2012
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I cann't get it to work with baud rate 115200. Is it even possible? I cann't change my baudrate because I need it to use with multiwii, my general purpose for this was to have one gps for multi wii and osd.. now it is not working with that rate.. :/
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Old Jan 16, 2013, 03:35 PM
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Dennis Frie's Avatar
Denmark, Capital Region of Denmark, Naerum
Joined Feb 2011
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Quote:
Originally Posted by walkmanz View Post
I cann't get it to work with baud rate 115200. Is it even possible? I cann't change my baudrate because I need it to use with multiwii, my general purpose for this was to have one gps for multi wii and osd.. now it is not working with that rate.. :/
I'm not sure a baud rate of 115200 is possible. The serial data is read with polling and not interrupt. As the pixel-output will have highest priority (it's running in an interrupt), the data-transfer must be slow enough, to make sure no character is "missed". You can do a quick calculation, to see if itīs possible. Try to compare the "line-time" (the maximum length of the an interrupt) and the serial-speed. Just to get an idea
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Old Jan 17, 2013, 11:14 AM
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Latvia, Riga
Joined Jan 2012
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I'm not so into the code, I'm not a programmer.. well with 38400 baud rate osd works but for multiwii I need 115200 baudrate.. maybe there is the way to read the serial data at 115200 baudrate and still do the pixel generation?
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Old Jan 22, 2013, 03:04 PM
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Latvia, Riga
Joined May 2010
653 Posts
Wanted to share my DIY OSD board with GPS, Current, V1, V2, and RSSI inputs
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Old Jan 22, 2013, 03:07 PM
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Canada, BC, Langley
Joined Oct 2011
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Please tell me your going to sell a few of these ??
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Old Jan 22, 2013, 03:09 PM
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Denmark, Capital Region of Denmark, Naerum
Joined Feb 2011
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Originally Posted by kristaps_r View Post
Wanted to share my DIY OSD board with GPS, Current, V1, V2, and RSSI inputs
C'mon dude, you just keep making my builds look ugly as hell

On a more serious note - it's awesome to see the projects be used like that. Really nice and clean setup with a PCB.
Can't really say anything but great work

You should give the version with MAX7456 a shot if you solder PCB anyway
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Old Jan 22, 2013, 03:16 PM
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Joined Aug 2011
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Originally Posted by kristaps_r View Post
Wanted to share my DIY OSD board with GPS, Current, V1, V2, and RSSI inputs
want that!
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Old Jan 22, 2013, 03:17 PM
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Leeds, UK
Joined Dec 2003
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That's awesome, hope to see some to buy!
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Old Jan 22, 2013, 03:18 PM
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Latvia, Riga
Joined May 2010
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Quote:
Originally Posted by Dennis Frie View Post
C'mon dude, you just keep making my builds look ugly as hell

On a more serious note - it's awesome to see the projects be used like that. Really nice and clean setup with a PCB.
Can't really say anything but great work

You should give the version with MAX7456 a shot if you solder PCB anyway
I will ...
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Old Jan 22, 2013, 03:21 PM
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Denmark, Capital Region of Denmark, Naerum
Joined Feb 2011
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Originally Posted by kristaps_r View Post
I will ...
Sounds good
- and as always, feel free to sell whatever you want from all of these projects. They are uploaded with no strings attached at all.
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Old Jan 22, 2013, 03:24 PM
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Latvia, Riga
Joined May 2010
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Originally Posted by sarky1 View Post
Please tell me your going to sell a few of these ??
I was not going to sell them. I made this just because I wanted (liked). I don't have time even to test it.
I am also going to make one 25x25mm powered from RX 5v without USB with Bat, Current and RSSI inputs

When I will test them I will think about expenses and maybe sell some.
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Old Jan 22, 2013, 03:29 PM
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Latvia, Riga
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Originally Posted by Dennis Frie View Post
Sounds good
- and as always, feel free to sell whatever you want from all of these projects. They are uploaded with no strings attached at all.
Thanks You give me real inspiration Dennis. I have more ideas in my head but don't have as much time as I want.
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Old Jan 23, 2013, 03:09 AM
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Latvia, Riga
Joined May 2010
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OK
I will solder some more of these after I will successfully test it. My friend also asked.
I summed components, board, soldering... and seems I could give away these for 29$ shipped worldwide with tracking. (I wish i could get components as cheap as Chinese and some Chinese to solder this )

If someone interested I will count people and solder that quantity.
Can't give any date but hope this would not take long (count people interested + order components + solder)

Please don't be angry if I will find out that something is not OK with resign. USB and OSD works fine, need to test all ADCs and serial port
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Old Jan 28, 2013, 11:42 AM
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Joined Mar 2008
10 Posts
hello,

I would like to join this thread and enjoy this great OSD, but my OSD does not work properly.

Attached pictures of my circuit, the only thing that shows the screen output is a snapshot that lasts a few milliseconds, and appears in different horizontal position every 10 or 15 seconds.

I've tried with the following changes in the code:

# define CONTROLLER 0 or 1

# define VIDEO_SYSTEM 0 or 1 (do not know the camera system as it is reused)

# define align_text_ 1 to 22 (I tested all intermediate values​​)

And the result is always the same. I can not find the error.

Thanks and sorry for my English
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Old Jan 30, 2013, 09:10 AM
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Joined Mar 2008
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hello,

After many hours and testing, the result is that multiple cirtuitos not fail, but fails to VGA Adaptor AV:

http://www.ebay.es/itm/290694941022?...ht_4555wt_1397

Connecting the circuit to capture it works correctly.

Now the problem is that this model does not detect GPS:

http://www.ebay.es/itm/271079582518?...ht_1886wt_1163

I do not know how to set it from the code, and how they connect BACKUP and 1PPS signals.

Thank you.
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