Miditransfer between USB-C port and Teensy

JupiterMoll

JupiterMoll

Member
Hallo ,

i have a synthesizer that has an USB-C Port that can be used as Midi in / out .
Is it possible to connect for example a teensy 4.1 via its micro usb port to the USB-C port of the synthesizer
using the USB midi library ? Or do i need to use the USB host interface ?

Thx.
 
In general, primary USB interfaces (the microUSB port on the Teensy & the USB-C port on your synthesizer) cannot be directly connected. If I understand correctly what you would like to do, if you have a USB hub with both USB-A & USB-C ports, you could probably attach that hub to the USB host port on the Teensy, to which you could connect the synthesizer. I can tell you from firsthand experience that MIDI works well over the USB host port on the Teensy.

Hope that helps . . .

Mark J Culross
KD5RXT
 
Why would it need a hub? This seems to just need a USB-C to USB-B cable, which is readily available, plus the USB host panel connector which has a USB-B socket.
 
@Nantonos :

Fair question & reasonable suggestion. I was thinking that, depending upon the current requirements to power the synthesizer, the powered hub would always work, whereas the Teensy USB host may not provide sufficient current. No sense in troubleshooting more than one problem at a time. Just my thoughts (although I did a terrible job of making that in any way clear) . . .

Mark J Culross
KD5RXT
 
JupiterMoll said:
i have a synthesizer that has an USB-C Port that can be used as Midi in / out .
Is it possible to connect for example a teensy 4.1 via its micro usb port to the USB-C port of the synthesizer
using the USB midi library ? Or do i need to use the USB host interface ?
Click to expand...
In USB lingo, a synthesizer is a USB Device. A USB Device can only talk to a USB Host. Two USB Devices talking to each other is not possible.
This website may give you more insight.
The micro-USB connector on the Teensy is a USB Device. The USB host interface connector on a Teensy 3.6/4.1 is, as the name implies, a USB Host.
The USB hub Mark suggested is strictly spoken not required, but for practical reasons, such as power consumption, a very good suggestion.

Paul
 
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