Cheaper alternative to PIC18F2550

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Re: Cheaper alternative to PIC18F2550

Postby dmitri » Fri Apr 22, 2011 12:01 pm

Probably.
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Re: Cheaper alternative to PIC18F2550

Postby timekeeper » Fri Apr 22, 2011 12:14 pm

dmitri wrote:Probably.


Haha... I love the "few words" way you answer every time...
Will you include it in the next update?
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Re: Cheaper alternative to PIC18F2550

Postby dmitri » Fri Apr 22, 2011 12:18 pm

Unlikely.
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Re: Cheaper alternative to PIC18F2550

Postby timekeeper » Fri Apr 22, 2011 12:22 pm

dmitri wrote:Unlikely.


Haha there it is again... Would you care if I try and implement it?
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Re: Cheaper alternative to PIC18F2550

Postby dmitri » Fri Apr 22, 2011 12:28 pm

timekeeper wrote:
dmitri wrote:Unlikely.


Haha there it is again... Would you care if I try and implement it?

You are welcome to do it.
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Re: Cheaper alternative to PIC18F2550

Postby timekeeper » Fri Apr 22, 2011 12:44 pm

dmitri wrote:
timekeeper wrote:
dmitri wrote:Unlikely.


Haha there it is again... Would you care if I try and implement it?

You are welcome to do it.


OK, I am ready to build my pickit2 clone and start experimenting. I 'll keep you informed.
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Re: Cheaper alternative to PIC18F2550

Postby roger » Sat Dec 10, 2011 10:22 am

dmitri wrote:I just updated the first post with a new USB MIDI firmware version which supports 2 MIDI interfaces. With 2 MIDI interfaces it is possible to use one to configure MegaDrum with MegaDrumManager and another to be used by any other MIDI software.


Sorry if I am being a bit slow on this one, but is it possible to use the two MIDI/USB channels independently, or can the second channel only be used with Megadrum?

Is there a schematic available for this?

Thanks Roger
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Re: Cheaper alternative to PIC18F2550

Postby dmitri » Sat Dec 10, 2011 11:59 am

roger wrote:Sorry if I am being a bit slow on this one, but is it possible to use the two MIDI/USB channels independently, or can the second channel only be used with Megadrum?

Independently from what? Both MIDI USB interfaces are equal and you can use one for MegaDrum control and another for MIDI data.
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Re: Cheaper alternative to PIC18F2550

Postby roger » Sun Dec 11, 2011 10:28 am

dmitri wrote:
roger wrote:Sorry if I am being a bit slow on this one, but is it possible to use the two MIDI/USB channels independently, or can the second channel only be used with Megadrum?

Independently from what? Both MIDI USB interfaces are equal and you can use one for MegaDrum control and another for MIDI data.


Sorry, I put my question very badly, so I went and did some more research.

In your first post on this subject you say that the software has been updated for 2 MIDI/USB channels.

However, the 14K50 only has one USB port, and the 2455 has 2 USB interfaces, but only one can be used at any time.

So I guess my question should have been, although there are potentially 2 MIDI/USB channels, I assume that only one can be used at any time, since I can't find a schematic which shows the two ports in use.

Maybe this is all explained in the MIDI/USB 'C' program, but I still have to work through that.

Of course, I may be totally misunderstanding the whole thing.

BTW, I have used your code for a single MIDI/USB output which works beautifully.

Sorry for being slow on the uptake on this one.

Regards

roger
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Re: Cheaper alternative to PIC18F2550

Postby dmitri » Sun Dec 11, 2011 12:05 pm

It uses one serial interface to talk to Atmega and presents two MIDI USB devices to a USB host to overcome a problem in some OSs where only one program at a time can have access to a MIDI device. I explained it in http://www.megadrum.info/forums/viewtop ... 621#p17621
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