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I need to make up a cable... usb to midi
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Cisco Kid



Joined: Feb 15, 2019
Posts: 1
Location: Canada

PostPosted: Fri Feb 15, 2019 9:02 am    Post subject: I need to make up a cable... usb to midi
Subject description: DIY
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New to the forum. Hope I there is an answer. I am handy with micro electronics physical work... wiring/soldering etc, thru my work with DCC model rail... but now a music question

I am connecting two keyboards via midi. One has midi in and out through a Type B USB and the other midi in / out via regular midi din-type port. (This procedure works automatically with Yamaha to Yamaha connections but I am connecting Casio to Yamaha. I can see that the default channel settings should be ok on both my keyboards as is.)

There is no such thing as a straight usb to midi cable. I have tried the usb to midi y cables with the FTP processing chip in between, but that seems to prevent signal transfer. I suppose a midi processor with a pass-thru would work... but why not make up my own cable.

Does anybody have the info/diagram on pin connections for midi to usb matching. With this and the retail DIY midi and usb plugs I can make up a cord to test. Doesn't matter if usb diag is for Type A or B. I have adapters.

Thanks in advance.
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MapacheRaper



Joined: Feb 15, 2018
Posts: 166
Location: Spain

PostPosted: Fri Feb 15, 2019 2:16 pm    Post subject: Reply with quote  Mark this post and the followings unread

Jan Ostman has some MIDI2CV implementations that maybe could be useful. In one of the schematics/code it shows how to build a usb/midi conversor from a attiny85 and some simple code.

https://janostman.wordpress.com/how-the-umidi2cv-works/

Not sure if is the same as you need or just similiar.

Take note tha Jan is quite famous from scamming his customers, so it´s advisable to look at the code but not bying nothing from the site, tho.
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