preenfm Forum
PreenFM => preenfm2 and preenfm3 => Topic started by: cdswift on April 04, 2015, 08:26:35 PM
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Hi,
My Preenfm2 connects OK via USB and is recognised as a DFU device when started in DFU mode. When started in normal mode it is recognised as PreenFM mk2 (Interface 0) but is classified as a USB Device rather than as a Sound, Video & Game controller device. As a result it does not appear as a midi device in any of my midi player applications (although my M-Audio UNO does). The OS is Windows 7 32 bit. I have connected the module to a Windows 8 machine & it is recognised fine as a midi interface.
Any ideas how to force my PC to recognise PreenFM2 as an audio/midi device?
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This gets more curious. I connected the PreeFM2 to another box with Windows 7 and it was correctly identified as aSound, Video & Game controller device. I have deleted all references to PreeFM in the registry and as soon as I connect it, it is identified as the wrong type of device.
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Hi,
Weird... never heard of this problem.
Can you try to go in the device property (right click + properties + drivers), and to try to chose another driver...
Don't know exactly but you can try to update and select a different one if i remember correctly...
Xavier
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Hi Xavier,
This is clearly not a problem with the preenfm2, but with the notebook that I am using. For the time being. I will connect using my usb to midi converter which works fine.
I've tried all sorts of tricks to get it to use a different driver, but it keeps reverting to what I think is a mass storage driver. I have tried copying the driver files from the working machine but it makes no difference. I suspect if I rebuilt the OS, it would work fine.
Out of interest, is the midi client code yours or standard ST Microelectronics?
Chris
I will keep searching for a solution in the background & let you know if I find one.
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Hi Xavier,
An update for you. I built an Arduino based usb - midi interface that uses standard Windows Class drivers. When I connected it to my laptop, it wouldn't load the correct driver either - so its definitely my laptop that is the problem. Well, I decided to buy a new laptop with Windows 8.1 and both devices work perfectly. I will just rebuild my other laptop at some point.
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Thanks for the update.