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I found a few USB / MIDI 'libraries' for STM32.

However, I'm looking for a library that can handle (multiple) MIDI In/Out (DIN5) connectors with STM32 (preferably STM32F4), thus using UART/USART.

I wonder if something is available (to prevent creating it myself while something similar exists), since I cannot imagine I'm the first one doing something with MIDI (DIN5) ports.

I'm looking for something similar as the Fourtyseven Effects MIDI library like on the Arduino: fourtyseven effects.

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    With multiple UARTs running in parallel, you just have to use multiple instances of the library data structures in parallel. (If your library uses global variables, change it appropriately.)
    – CL.
    Aug 29 '17 at 12:39
  • @CL I understand, but so far I don't know what is a (good) library to use ... I assume the library (if there is one) supports having multiple instances.
    – Michel Keijzers
    Aug 29 '17 at 12:51
  • @CL: is this really a good place? I doubt (except you) there are very few people heard even about STM32
    – Michel Keijzers
    Aug 29 '17 at 13:14
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    That message is misleading; the first four users voted to close as off topic; only an admin can migrate to softwarerecs. Anyway, this is the only site where this question could be on topic.
    – CL.
    Aug 29 '17 at 13:41
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    Consider porting some other library to the STM hardware.
    – CL.
    Aug 29 '17 at 16:29
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Here is a github repository for something that should do the trick. https://github.com/TheKikGen/USBMidiKliK4x4

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    It looks good, although I reverted back to Arduino for now. But good to know there is a MIDI library.
    – Michel Keijzers
    Jan 27 at 20:14

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