VMUSIC / VMUSIC2 question

MarkR

I've successfully interfaced the VMUSIC module and can now play MP3's under processor control, but am finding things that don't seem to work properly.... do any of you know:

1.· Does the Volume control command work?··I've tried many byte-values with the command:· ·"VSV ",byte,$0D·· and none of them seem to work - the VMUSIC2 ignores them all except for a byte-value of $00, and for that specific value (which the manual says is max-volume) the module stops playing altogether (blinking stops on the USB-stick too).

2. If "V3A" works?· When I do a "play all" command ("V3A"),· it often doesn't play some of the files before it starts repeating.

3. Which commands will interrupt the audio stream?· I've noticed that sending it some commands (which should not affect the current audio being played)·will cause hiccups in the output audio.

4.·Of issues with the other file and directory commands (not specifically for mp3 playing)?

5. If this company tests their products before offering them to the public?· :^)

I know Mike Green has used this module, but thought I'd open it up to the forum too.·· Thanks Mike for prior help and, hopefully, future help!!

-mark

Harry Callahan

Likely culprit is outdated firmware on your device. If you haven't already, try loading latest version. See:

http://www.vinculum.com/downloads.html#vfirmware

Select VMSC Music Firmware (for VMUSIC modules) V3.62, Reflash (FTD). Rename the downloaded file FTRFB.FTD, load into root directory of your USB mass storage device. When VMUSIC module powers up and finds this file present it will automatically upgrade its firmware. See Vinculum Firmware User Manual Version: 2.3 page 13. With latest firmware, your module should respond to commands as expected.

DH

MarkR

Thanks Harry (DH).... that seems to have fixed the problems.... interestingly, the older version of firmware that my VMUSIC2 had, would mount the USB-drive very quickly, within seconds.... the new firmware take almost a full minute to mount the drive.... but the commands all seem to work now....

-mark

MarkR

For anyone interested, or hitting this thread months from now when searching for VMUSIC2 (!), I've found that most thumbdrives mount ("enumerate") quickly with the VMUSIC2.... only some older ones have the very long startup times.··· Just an FYI.... if you're having this problem, use a different thumbdrive.



-mark

Chris Savage

Mark,

Thanks for the feedback. This helps us as well. Take care.

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Chris Savage
Parallax Tech Support