DAB DAB+ FM Digital Radio Development Board

[Dabbler]

Hi!
JP from support @ Monkeyboard asked me to post the DLL definitions I use for the Centrafuse radio module. (Written in C#)




Hopefully this helps. Most are tested and in use, but a couple I've never used and might have errors, like get and save preset to the board.
RADIO_TUNE_BAND and other definitions are usually sbyte's


JJ

Thanks for this John, what Visual Studio and .NET version are you using?

I notice you're not using CallingConvention = CallingConvention.Cdecl on all the imports. For me this would generate 'stack imbalance' when running in debug.

[johnjore]

Yes, .NET 3.5 and 4.0 and VS 2010 patched to latest and greatest.

CallingConvention = Sorry, no idea why, but no errors here. Only reason it's there for that one is because I think i copied it from one of your posts


JJ

[nrgizerbunny]

I'm running on vb.net but I have to use the callingconvention equivalent too. Otherwise I get the pinvoke stack imbalance errors like dabbler.

Does anyone know how you convert the "sub" procedures over to vb.net equivalents, I'm okay with the functions statements but "MotReset" is a sub procedure which messes up on my declaration for it.

thanks in advance

[johnjore]

Sorry, no idea. In C#, I use

MotReset(MotMode.SlideShow);
MotReset(MotMode.EPG);

MotMode is an sbyte:

public enum MotMode : sbyte
{
SlideShow = 0,
EPG = 1
}

[nrgizerbunny]

I'm in the process of writing my own class for control of the radio.

Can anyone get the slave notification settings to work? I do a set then listen on the serial port and don't get anything back - i'm mainly thinking for a programme text update.

[Dabbler]

I'm in the process of writing my own class for control of the radio.

Can anyone get the slave notification settings to work? I do a set then listen on the serial port and don't get anything back - i'm mainly thinking for a programme text update.

Yes, I use the program Text notification.

Could be a few things. The station you are tuned too might not send them, or more likely, you may be setting the incorrect bit in the Set Notification command.

PM me if you want to do a code 'show and tell'. NDA and all that

[nrgizerbunny]

PM sent. At least I don't get any pinvoke errors!

[mos33y]

Hi Andre,
I have a similar issue to yours regarding my antenna. My antenna is factory fitted and is FM only (I cant pick up any dab stations). I contacted JP and he did have some DAB/FM antennas which he kindly sent over for me to test.

These antennas are the window stick on ones. I have not yet had the chance to test in the car but as promised to JP, I will test and provide as much feedback as possible. If Mick is ok with it, I might just post it here for the sake of reference.

on another note mick, with the new board being released that supports slideshows, do any aussie radio stations currently broadcast in this fashion? Just curious.

Mos

Small update:
1stly, appologies on the late update (between xmas, buying a house and 2 kids under 3, leaves little ME and carpc time :-) )

I have tested these window mount antennas and the results are not that different from the supplies aerial. I am however in the process of modifiying them to see if I can get better gain in the car. Will keep you posted. All else fails, I'll just invest in a dab-on-wheels car aerial.


Also, MitchJ posted a ebay link which is not available anymore. Can someone repost this please?
Mos

[ibf]

Small update:
1stly, appologies on the late update (between xmas, buying a house and 2 kids under 3, leaves little ME and carpc time :-) )

I have tested these window mount antennas and the results are not that different from the supplies aerial. I am however in the process of modifiying them to see if I can get better gain in the car. Will keep you posted. All else fails, I'll just invest in a dab-on-wheels car aerial.


Also, MitchJ posted a ebay link which is not available anymore. Can someone repost this please?
Mos

Copy and pasting the same item title on ebay search give me this :

http://www.ebay.co.uk/itm/Car-DAB-DA...item2ec5e40156

The board should work with a simple wire antenna, it is possible that your carpc/psu is killing the signal. Have you tried testing it with a laptop/netbook? they generaly emitt less interference.

I am experiencing some noise issues.
Noise is being injected into my linein port from dab board. I can confirm it is from dab board because I have turned the system volume on max and dab vol on 1 with noise present. I then muted line in from pc and the noise is completly removed.

This noise does not increase with volume increase of dab board. It is always there at same level, but when dab volume is increased, the sound of radio station is placed'over the top' of this noise signal. This becomes a big issue when trying to listen to radio at low levels.

Has anyone here experiences this noise?
What do you think is a solution?

I am using stock car aerial (amped) with win7, 32 bit

thank
Mos

Did you manage to resolve this issue? I think we might have the same problem, I get a tone which conincide with the RX/TX LED flashing.

[mos33y]

Hi IF,

Re ebay link: I did try that but it says the item has been removed from ebay - all good thanks anyway

Re noise issue: I still have issue. JB from Dabmonkey recommends Mickz's solution of earthing the board's earth onto pc chassis - have not yet tried this. If all else fails, I have been recommended a groundloop isolator connected inline with dab board and linein of pc. You will lose some midrange sound with this solution.

Also, are you using amped aerial or supplied aerial?

Ill be playning with the carPC abit shortly to solve these issues once and for all. Will report any fixes

Mos