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probonopd / MiniDexed

Dexed FM synthesizer similar to 8x DX7 (TX816/TX802) running on a bare metal Raspberry Pi (without a Linux kernel or operating system)
https://github.com/probonopd/MiniDexed/wiki
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USB MIDI Controller Connection Error on Raspberry Pi Zero W 2 #712

Closed EphraimElgrabli closed 2 months ago

EphraimElgrabli commented 2 months ago

When attempting to connect a USB MIDI controller to my Raspberry Pi Zero W 2, I encounter the following error in the HDMI output "dwroot: previous attempt to initialize device failed"

Environment

Device: Raspberry Pi Zero W 2 MIDI Controller: M-audio Keystation 49 (listed as a working device in the list)

minidexed midi config: MIDIButtonCh=1 MIDIButtonNotes=1 MIDIButtonPrev=98 MIDIButtonNext=99 MIDIButtonBack=93 MIDIButtonSelect=100 MIDIButtonHome=0 MIDIButtonPgmUp=96 MIDIButtonPgmDown=97 MIDIButtonTGUp=95 MIDIButtonTGDown=94

thanks for the help in advance.

diyelectromusic commented 2 months ago

I think we'd probably need to see all the log messages on the display to see what is going on. In particular anything related to that "previous attempt" :)

btw - have you seen the comments on the wiki about various cmdline.txt settings that might affect USB?

Kevin

EphraimElgrabli commented 2 months ago

yes I have seen and tried both usb speed full and not full and didn't work either way I sadly disconnected the pi from power and pack it since it's night here already, I'll send you a picture tomorrow. the error appear when connecting the midi to the usb port.

EphraimElgrabli commented 2 months ago

I've resolved the issue. The problem was that I had incorrectly soldered the data+ and data- wires. After resoldering them in the correct orientation, everything is working properly. Thank you for your assistance!