Recent Posts

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91
PreenFM2 / Re: USB is only good for power supply
« Last post by kx3 on April 14, 2017, 04:27:43 AM »
Doh!

I thought it was only used to flash the bootloader....

92
PreenFM2 / Re: USB is only good for power supply
« Last post by Xavier on April 13, 2017, 05:15:45 PM »
I built it and flashed its bootloader to v1.11 a few months ago with the mini-usb.

I just realized you wrote "Mini-USB" ?
So you have a CERB40 cpu board ?

You need a wire to link the case USB to the CERB40 mini USB.
Search for CERB40 in this old-PCB page :
http://ixox.fr/preenfm2/build-it/the-pcb/

93
PreenFM2 / Re: USB is only good for power supply
« Last post by kx3 on April 13, 2017, 01:47:09 AM »
Yes it's on
94
PreenFM2 / Re: possibility of obtaining a new pcb? or schematic?
« Last post by Xavier on April 12, 2017, 11:07:28 AM »
actually it was xavier (as usual) that posted the right schematic. i was just doing stupid copying of a GitHub link. :-)

You made me realize i still haven't put the real PCB on github  ;)
95
PreenFM2 / Re: USB is only good for power supply
« Last post by Xavier on April 12, 2017, 10:11:39 AM »

Hi,

Is the USB midi enabled ?
See 3.1 here, first setting :
http://ixox.fr/preenfm2/manual/menu-mode/

Xavier
96
PreenFM2 / USB is only good for power supply
« Last post by kx3 on April 12, 2017, 07:16:25 AM »
Hi, my PreenFM2 doesn't show in any of 3 computers (win7 win10 and Linux Ubuntu) neither as Midi interface or as USB stick when it boots with button 1 pressed.
However it powers ON and works with USB power.
I built it and flashed its bootloader to v1.11 a few months ago with the mini-usb.

I've try with several USB Cable and USB-midi is turned on in system.
Running firmware 2.07.

Any clue?
97
PreenFM2 / Re: possibility of obtaining a new pcb? or schematic?
« Last post by lokki on April 10, 2017, 11:17:25 AM »
actually it was xavier (as usual) that posted the right schematic. i was just doing stupid copying of a GitHub link. :-)
98
PreenFM2 / Re: possibility of obtaining a new pcb? or schematic?
« Last post by kirkwood on April 09, 2017, 07:05:28 PM »
wicked. thank you so much Lokki! The pcb png is a big help. I will try manually jumping these pads, hopefully next week.
99
PreenFM2 / Re: possibility of obtaining a new pcb? or schematic?
« Last post by lokki on April 08, 2017, 08:09:36 PM »
haha true, sorry!!
100
PreenFM2 / Re: possibility of obtaining a new pcb? or schematic?
« Last post by Xavier on April 07, 2017, 10:40:43 PM »
Lokki, this is the preenF405 schema, aka the MCU/CPU board  ;)

Kirkwood, I still have to put the PCB in the github repository.
In the meantime you can download it from the download page on the preenfm2 site.
Here is the PCB dirrect download link :
https://www.dropbox.com/s/7k68bagutq6ri52/PreenFM2_R5c_Kicad.tgz?dl=1
You'll need kicad (http://kicad-pcb.org/) to load the project.

I attached a png that may help you.
Jumpers should work.

I don't think you can have broken anything.
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