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PilotPirx

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Joined: 03/11/2020
Location: Germany
Posts: 98

Posted: 07:25pm 08 May 2025

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I've finished my midiplayer so far. It plays MIDI files in file format 0 (one track). If there are several tracks in the MIDI-file (format 1), it plays them one after the other. I have included three MIDI examples with format 0.

If you have MIDI files in which the instruments are spread over several tracks, you can convert them to format 0 using tools (e.g. Anvil Studio - free of charge).

The program "PMFV10.bas" (PlayMidiFileV10) requires a MIDI synthesizer on COM2, e.g. the SAM2695.
The program is still under development. Improvements are welcome. I am not a software developer, so forgive me for the unprofessional programming.

Usage:
run "PMFV10.bas",yourmidifile.mid

Have fun!
CMM2_MIDIPlayerV10.zip
Edited 2025-05-09 05:28 by PilotPirx

Frank N. Furter
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Joined: 28/05/2012
Location: Germany
Posts: 940

Posted: 07:15am 09 May 2025

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Hi PilotPirx,

that looks quite interesting - can you also connect a “normal” synthesizer to it?

Frank

PilotPirx

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Joined: 03/11/2020
Location: Germany
Posts: 98

Posted: 07:25pm 09 May 2025

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Hi Fran N. Furter,
this should be no problem. It's an normal serial MIDI output with 31250Baud.
You only need a Midi Interface, an arduino midi shield for example.
Example MIDI Out (5V):

Peter63
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Joined: 28/07/2017
Location: Sweden
Posts: 47

Posted: 04:21am 10 May 2025

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Hi, PilotPirx
I have thoughts about making a MIDI sequencer program for PicoMite. I quickly looked through the code you wrote, and it is not completely unprofessional (good job). I don't have a CMM2. Has anyone tested this on PicoMite MMBasic?

Peter

Peter63
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Joined: 28/07/2017
Location: Sweden
Posts: 47

Posted: 06:36am 10 May 2025

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Hi, PilotPirx
I tried the program on PicoMiteVGA MMBasic USB RP2040 Edition V6.00.02RC10, it worked with a slight modification from COM2 to COM1 MIDI port. I only tested the MIDI file "AxelF.mid", where channel 0 was a bit out of sync, probably due to two notes being played simultaneously on the same channel. Otherwise, it worked completely fine, great job again, I'm happy.

Peter

PilotPirx

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Joined: 03/11/2020
Location: Germany
Posts: 98

Posted: 08:26pm 10 May 2025

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Hi Peter63,

thanks for this information.
Since I have not used any CMM2 specific commands, it should run almost everywhere under MMBasic. I simply searched the Internet for information on the structure of Internet files and built the program according to this information (Mostly from an Atari ST doc). I haven't had much experience with Midi yet. I'm glad you like it.
Is the 63 in your name your year of birth? If so, I am also Peter63!!!

Peter63
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Joined: 28/07/2017
Location: Sweden
Posts: 47

Posted: 01:53am 11 May 2025

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Hi PilotPirx,
Yes, I was born in 1963. I bought the Roland MT-32 sound module when it was released, sometime in the 80s. I still have it. It was the one I tested the AxelF.mid file with. I am thinking about trying to program a MIDI editor for PicoMite (MMBasic), similar to Voyetra Sequencer Plus, which I really like.

/Peter63

Frank N. Furter
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Joined: 28/05/2012
Location: Germany
Posts: 940

Posted: 06:58am 12 May 2025

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@PilotPirx:

Many thanks for the information! I have an old Six-Trak synthesizer - I don't even know if it still works...

https://www.amazona.de/vintage-analog-sequential-circuits-six-trak-synthesizer-1984/

It would be great to get him to play with it.

Frank

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