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Forum Index : Microcontroller and PC projects : PM3.1 - Quick question about MP3 playback....

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Grogster

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Joined: 31/12/2012
Location: New Zealand
Posts: 10060

Posted: 01:50am 13 Oct 2026

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Pico Computer 3.1 PCB, FW version 6.0301
Manual version for same FW version.

Manual, page 58, Utility PLAY commands.

I can't get PLAY NEXT or PLAY PREVIOUS to work.

Start a track playing with PLAY MP3 "01" - playback starts.
Try PLAY NEXT, and I get the message: "Last track is playing"
OK, so I then try PLAY PREVIOUS, and I get the message: "First track is playing"

So which is it?
I'm currently being told that the first AND the last track are playing.

Either way, I can't make MMBASIC play the next or previous track.

If I use PLAY STOP, that works - playback stops.
If I then try PLAY NEXT, I get the message: "Error : nothing to play"

Just for the purposes of experimentation, I tried PLAY VOLUME 50,50 and that works perfectly, so it is just the NEXT and PREVIOUS commands I can't get to work.

Smoke makes things work. When the smoke gets out, it stops!

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