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1

preenfm2 and preenfm3 / PreenFM3 V0.101 not showing as mass storage device in W10

« on: December 23, 2020, 11:02:05 AM »

The PreenFM3 unit is not recognised as a usb device nor can I get the SD card showing in the explorer as a storage device. I think I set it up right.

Config > USB Midi > set to in /out

The PreenFM2 editor does see the PreenFM3

2

preenfm2 and preenfm3 / New here new to PreenFM, build the PreenFM3

« on: December 17, 2020, 10:44:37 PM »

Hi I'm Rob from the Netherlands, I bought the PreenFM3 kit from van Daal Electronics, good service and very quick delivery from them, ordered monday received wednesday. I built the kit today without a problem, but ran into a problem with flashing the firmware. The webdfu doesn't really recognise the module and after conecting I got the message "Security problem: Acces denied".

I think I will try DfuSE tomorrow, and see if that will work. Another thing is that I'm not quite sure what needs to be on the SDcard. The Build instructions on the van Daal (which are quite good up until that point) says: Copy all the needed files to the SD card. I would like a bit more specific information on that. I unpacked the zipfile 0.100 on the SDcard and then tried to flash the firmware.

When I didn't get past the error code I stopped for today. Any pointers in the right driections are very welcome.