Metrophage Posted May 17, 2005 Report Share Posted May 17, 2005 I am kind of confused about the USB module. At first I thought it was supposed to be for installing in other MIDIboxes, like so your controller or SEQ would send MIDI type signals along USB directly. On closer inspection though it looks more like a stand alone MIDI interface. Since I am seriously considering building a SEQ, the idea of it sending USB to my computer appeals to me, but it sounds silly to connect them separately like SEQ>MIDI>USB. Doesn't making the signal (old style) serial first increase the latency? I would imagine that sending the MIDI data over USB directly (SEQ>USB) would be faster, but I don't know for certain.Any ideas about this? Since I am in the planning stage, I'd like to nkow what others think.Thanks!M Quote Link to comment Share on other sites More sharing options...
moxi Posted May 18, 2005 Report Share Posted May 18, 2005 hi ,not sure about better perf ,but you can add the USB module to your seq through the J11 port of your core ,this port (look at the core schématic) is directly after the rx and tx output of the pic ,and the signal will go directly to the rx and tx input of the AN2131SC of the USB module (then will be outputed to the USB port) .At this time ,there is no USB project using a PIC with an integrated USB interface. Quote Link to comment Share on other sites More sharing options...
Metrophage Posted May 18, 2005 Author Report Share Posted May 18, 2005 Thank you for your helpful answers, Moxi!M Quote Link to comment Share on other sites More sharing options...
TK. Posted May 18, 2005 Report Share Posted May 18, 2005 At this time ,there is no USB project using a PIC with an integrated USB interface.yes, there are several reasons - all PICs with integrated USB have bugs which affect the compatibility with existing MIOS projects.In addition, the USB PICs cannot be used as USB->MIDI bridge due to a silicon bug in the EUSART which I found during the firmware development for the PIC18F4550:-> http://forum.microchip.com/tm.asp?m=85120therefore I've given up to use this chip - it's a waste of timeBest Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Metrophage Posted May 18, 2005 Author Report Share Posted May 18, 2005 Hi TK!I have heard about the problems of the PICs with integrated USB, but those are not what I was thinking of. I meant just sending the data out of the ordinary PIC processor through an ordinary USB controller. M Quote Link to comment Share on other sites More sharing options...
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