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I'm trying to use the MIDI library with my Teensy 3.1, but I'm running into some problems. I've wired it up as in the docs (https://www.pjrc.com/teensy/td_libs_MIDI.html) and am using pluggable headers to connect the teensy to the protoboard I'm building the rest of the circuit on.
However, I'm seeing some strange behavior—*when connected to my protoboard, the Arduino software gives "Download error" when I try to upload code, and the board won't boot. (It won't boot when powered off USB *or* when powered via external 3.3V)
I've built a second copy of the protoboard, and the same issue occurs. I can't figure out what's going on.
I thought it might be that having something connected to the RX pin would mess up Serial comms over USB, but breaking that connection (nothing on the RX pin now) doesn't solve it.
Edit: photos of the protoboard https://imgur.com/a/QtCBR
However, I'm seeing some strange behavior—*when connected to my protoboard, the Arduino software gives "Download error" when I try to upload code, and the board won't boot. (It won't boot when powered off USB *or* when powered via external 3.3V)
I've built a second copy of the protoboard, and the same issue occurs. I can't figure out what's going on.
I thought it might be that having something connected to the RX pin would mess up Serial comms over USB, but breaking that connection (nothing on the RX pin now) doesn't solve it.
Edit: photos of the protoboard https://imgur.com/a/QtCBR
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