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Hi!
Maybe somebody here knows the answer.
I have the above setup, but no sound comes out of the GB when I play a note in Logic. Be it from a USB controller or via the onscreen keyboard. Are there any settings I need to make in mGB or elsewhere?
Any help is appreciated.

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Chicago IL

pretty sure mgb is designed to be used specifically with an arduinoboy

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mGB compatibility is listed as a feature on the Nanoloop site, so I guess it should work somehow. https://www.nanoloop.com/midi/index.html

(BTW: The mGB you can get from Github is a 64k file. Shouldn't it be 32k?)

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NUMBSKULL

mGB works with the nanoloop midi adapter. Yeah it's 64k, that is correct. It also uses SRAM so just be aware of that if you're using like an EMS cart with LSDJ on another page or something.

Does the adapter show up when you select the midi output in logic? I have a nanoloop midi adapter and can't get it to work either. I was talking to wisefire at SquareSounds Tokyo and he was saying it's way more reliable if you solder a USB cable directly to the adapter. Haven't tried that though!

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The adapter seems to work fine. I can load 32k roms onto my Nanoloop One cart and it shows up as MIDI device in Logic, as you can see in the screenshot.

About the 64k: Here (https://www.nanoloop.com/one/index.html) the Nanoloop One page lists mGB as a compatible rom for the cart, but it "only" has two additional 32k rom slots. Does anybody know what that is about? I found a modified mGB on this forum which is 32k and I could load onto the cart and it seems to start up fine.

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NUMBSKULL

Oh yeah, in that case you're probably fine. I don't know what else it could be!

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Athens, GA
fidepus wrote:

mGB compatibility is listed as a feature on the Nanoloop site, so I guess it should work somehow. https://www.nanoloop.com/midi/index.html

I believe the issue is not compatibility with mGB. I use the exact same usb setup and get midi data to mGB perfectly fine from my copy of Live Lite. I think the conflict is between Logic and the usb adaptor. There are known compatibility issues with Apple Logic and the USB Boy, too: https://chipmusic.org/forums/topic/1446 … c-support/

Long story short... I don't think it's possible! If anyone knows a work around, I would be very interested, as well!

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Athens, GA

Just realized I've had this issue since 2014, and haven't found a solution online yet...
https://chipmusic.org/forums/topic/1554 … h-ableton/

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Did you press B in mGB?
When running on a nanoloop cart, mGB starts with all-zero settings so that all channels are muted, probably because it tries to load saved settings from nonexistent SRAM. To set it back to defaults, press B after startup.

mGB is only 32k, but for some reason the ROM is padded to 64k with the upper half empty. When downloading the 64k ROM to the nanoloop cart, it will boot into mGB after 32k have been received.

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IL, US - also known as d_strct
oliver wrote:

Did you press B in mGB?
When running on a nanoloop cart, mGB starts with all-zero settings so that all channels are muted, probably because it tries to load saved settings from nonexistent SRAM. To set it back to defaults, press B after startup.

mGB is only 32k, but for some reason the ROM is padded to 64k with the upper half empty. When downloading the 64k ROM to the nanoloop cart, it will boot into mGB after 32k have been received.

weird, i've never needed to press B after startup, but that could just be something that's not an issue when using piggy tracker to control it. or it's just one of the many things that inexplicably works for me but almost no one else when it comes to piggy tracker MIDI functionality

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NUMBSKULL

I have compiled mGB from source to just 32k. It removes the SRAM functionality, and also the color scheme (it's just greyscale). It's what I include on my mGB carts. Here's the rom if anyone else wants it: https://drive.google.com/open?id=0B2JWZ … XBPZTkyVDg