nlate Posted March 10, 2013 Report Share Posted March 10, 2013 Dear MIDIBOXers, How can MOIS Studio access the LPC17 core exclusively via USB GM5 Port 5 instead of Port 1? #define MIOS32_MIDI_DEBUG_PORT USB4 in MIOS32_config.h only sends debug outputs on Port 5 (MIDI IN: GM5 Port 5 in MIIOS Studio) I want use Port 5 ( MIDI IN & OUT) as a service channel for MIOS Studio (MIOS Terminal, MIDI Monitor, Upload Window etc.). I would use Port 1..4 for pure application related MIDI data only. I this possible, and if yes, how could I achieve that? Where else do I have to make changes in the MISO32 framework? Thanks in advance! Cheers Jo Quote Link to comment Share on other sites More sharing options...
TK. Posted March 10, 2013 Report Share Posted March 10, 2013 Hi Jo, there is a major blocking point which will prevent us from implementing this properly in MIOS32: there isn't enough code space available in the bootloader range for a USB descriptor which enables 5 USB Ports. With this assumption I never considered that "service functions" are accessed from an USB port other than USB0. -> it will never work properly under all conditions! Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
nlate Posted March 10, 2013 Author Report Share Posted March 10, 2013 Hi Thorsten, Many thanks for your quick answer! I totaly aggree to your constrains by the limitations of the bootloader. Is it possible and how to redirect the enumbered logical 4 USB ports 0..3 in the MIOS32 apps to the USB Pipes 1..4 instead of USB Pipe 0..3? Best Regards, Jo Quote Link to comment Share on other sites More sharing options...
TK. Posted March 10, 2013 Report Share Posted March 10, 2013 In theory you could do this in http://svnmios.midibox.org/filedetails.php?repname=svn.mios32&path=%2Ftrunk%2Fmios32%2FLPC17xx%2Fmios32_usb_midi.c MIOS32_USB_MIDI_PackageSend: add "package.cable = (package.cable + 1) % 5" at the top MIOS32_USB_MIDI_PackageReceive: add "package->cable = (package->cable + 1) % 5" at the bottom. You have to recompile and install the modified bootloader first before you will be able to use such a change in your application. -> make in bootloader/src first, thereafter make in bootloader/updater A perl installation is required to generate the bootloader/updater/bsl_image_* files No guarantee that it will work! (could be that I overlooked something) It should be clear, that Bootloader HOLD mode won't work thereafter anymore, because the bootloader will listen to a non-existing USB cable. Much more code changes would be required to get this working, but I won't have the time to support you on such a topic (for a nice-to-have, but not necessary feature from my point of view) Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
nlate Posted March 10, 2013 Author Report Share Posted March 10, 2013 Thanks Thorsten, I totally agree with your concerns, it´s not worth to change the stable and aproved MIOS32 framwork, for such a minor nice-to have feature. I may consider it, if I got all my other planned features for the MIDIboxKB project implemented and tested. Thanks anyway for your profund answers. Cheers, Jo Quote Link to comment Share on other sites More sharing options...
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