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  1. Replies
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    Re: Serin with 16F876

    No idea what was wrong, but now it works.
    (It may have been the FTDI USB to serial cable.)
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    Serin with 16F876

    I am trying to read the serial (RS232) input on LEDs, connected to PORTB of the 16F876.
    (Later this will be part of a larger application, I need both PORTB and PORTC as outputs.)
    I am using an FTDI...
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    Re: Sample code for USB - MIDI

    OK, let's forget this all and use a dedicated USB to MIDI chip...
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    Re: Sample code for USB - MIDI

    Nobody knows? Too difficult?
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    Sample code for USB - MIDI

    Is there any sample code available to have a PIC18F4550 recognized by the PC as an (USB) MIDI device?
    (And yes, I know it is mainly finding the correct device descriptor...)
    I have been struggling...
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    Re: MIDI Descriptor for USB communication

    Interesting! This is what I get when I connect a commercial USB-to-MIDI interface



    Connection Status : 0x01 (Device is connected)
    Port Chain : 5-2
    PortAttributes ...
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    Re: MIDI Descriptor for USB communication

    Great! That will give a lot of useful information about a commercial USB/MIDI interface!
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    Re: MIDI Descriptor for USB communication

    Thanks!
    I will have a look at it and see if I can use it.
    By the way: what did you use to retrieve that long list of information about the PicKit2 programmer?
  9. Replies
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    Re: MIDI Descriptor for USB communication

    Yes, that is probably the way to go, I only wished I had a PBP programmed USB device that would do MIDI...
    The information about the PIC2 programmer gives a lot of information, but it doesn't do...
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    Re: MIDI Descriptor for USB communication

    Yes, I think you are right.
    Besides that, I think $400 is not real for an application like this.
    Especially because you can't get an idea what you will buy...
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    Re: MIDI Descriptor for USB communication

    Wow, that is a lot of (probably) useful information!
    The next question is: how to generate a descriptor file from this...
    Thanks!

    By the way: I saw HIDmaker Pro. That looks like an interesting...
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    Re: MIDI Descriptor for USB communication

    Thanks!

    The first link is my previous question, that never received a usable answer. (Although some reactions had good intentions.)

    The second link does not give any code, the code could be...
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    MIDI Descriptor for USB communication

    I have been experimenting with MIDI over USB for some time, without much success.
    It seems there is more needed than only a HID descriptor, to have a PIC (18F4550) recognized as a 'MIDI Device'....
  14. Thread: MIDI over USB

    by RuudNL
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    Re: MIDI over USB

    DaveC3, your code has been a great help so far.
    Unfortunately, I didn't manage to get it working.
    I suppose there is something wrong with my fuse settings.
    Do you mind to give me your config...
  15. Thread: MIDI over USB

    by RuudNL
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    Re: MIDI over USB

    Which PIC did you use? (I will first try if everything compiles before I modify the file(s) )
  16. Thread: MIDI over USB

    by RuudNL
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    Re: MIDI over USB

    Thanks!
    Yes, that looks like a good starting point!
    I will study your example and try to get things working.
  17. Thread: MIDI over USB

    by RuudNL
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    Re: MIDI over USB

    Nice, but not really PicBasic related.
    (Also some of the links don't work.)
  18. Thread: MIDI over USB

    by RuudNL
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    4,849

    MIDI over USB

    Hello,
    I would like to try to do this, but I don't know if this is possible...

    I would like to behave a PIC based circuit as an (USB) MIDI (receiver) interface.
    In the past I have managed to...
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    Re: Wait for a string on a serial port

    I just tested it, and it works.
    At first I got the impression that is was unreliable (to the same degree as what I had created), but after some experimentation it showed that I needed a pull-up...
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    Re: Wait for a string on a serial port

    Thanks! That may be useful. I didn't know that you could combine a fixed string and a variable when using WAIT.
    (I always thought you only could use a fixed string here.)
  21. Replies
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    Wait for a string on a serial port

    I am having a problem receiving data from a serial port.
    In fact, the serial port receives MIDI information, it is no problem to set the baud rate to the midi standard of 31,25 KHz.

    What I need...
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    Re: 18F14K50, PORT C as outputs

    Thank you Henrik for your time and effort.
    I think you are right, setting states that are the same as after POR are not very useful...
    I think I give up for today. Tomorrow there's an other day...
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    Re: 18F14K50, PORT C as outputs

    New test:



    REFCON0=0
    REFCON1=0
    ADCON1=0
    ADCON2=0
    ANSEL =0
    ANSELH=0
  24. Replies
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    Re: 18F14K50, PORT C as outputs

    I don't think so, because the result is the same with different (new!) 18F14K50's...
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    Re: 18F14K50, PORT C as outputs

    The result is (as expected): nothing!
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