TK. Posted July 5, 2014 Report Share Posted July 5, 2014 This was a nice challenge for the weekend: I implemented a driver for USB MIDI Host mode into MIOS32 for STM32F4 :smile: (LPC17 and STM32F103 don't support USB Host mode...) Tested with following devices: CME X-Key: Waldorf Blofeld: MIDIbox (here MIDIbox SEQ V4L): Ploytec GM5x5x5 USB MIDI Host mode just replaces USB MIDI Device mode via the USB OTG socket. The update will be available with all future MIOS32 applications, it's always available without special configuration. A special USB Micro-B -> USB 2.0-A adapter is required to connect the MIDI device. Such an adapter is for example available at Reichelt (DELOCK 83183) for 5 EUR:http://www.reichelt.de/DELOCK-83183/3/index.html?&ACTION=3&LA=446&ARTICLE=126860&artnr=DELOCK+83183&SEARCH=DELOCK+83183 Pluck this adapter into the Micro-USB socket of the STM32F4-Discovery board, reset (or power-cycle) the core, and MIOS32 will automatically switch to USB Host mode. Limitations: - USB hubs are not supported, the MIDI device has to be connected directly. - USB based Power-Supply is weak (limited to ca. 200..300 mA), which means that it might be required to power the MIDI Device with an external PSU - the MBHP_CORE_STM32F4 module has to be powered from the USB debug socket Please let me know if you are interested to beta-test this enhancement, I could provide a preliminary version of a MIOS32 application. Best Regards, Thorsten Quote Link to comment Share on other sites More sharing options...
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