PreenFM > preenfm2 and preenfm3
FAQ
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Xavier:
Why isn't <Awesome feature> supported ?
Can you add <Awesome feature> to the firmware ?
Let's discuss that on the forum.
But before, keep in mind that:
The preenfm firmware is open source and anyone with dev skills, can fork the git repo and make all the modification they want.
I'm always very happy to give code information and explain how things works.
For the official firmware i add what it think are the most valuable for majority of users, and also try to follow my vision of this synth.
(The amount of free time i have has also a big impact on that)
Where can i find FM documentation ?
Forum member "fori" recently post this list
http://ixox.fr/forum/index.php?topic=69815.msg75465#msg75465
Where are the last firmwares or other files to download
preenfm2 : http://ixox.fr/preenfm2/download/
https://github.com/Ixox/preenfm2/releases
preenfm3 : https://github.com/Ixox/preenfm3/releases
The encoders does not respond correctly
If you need 2 ticks to increase by one the value or if one tick increases by 2 the values, you need to change the encoder drivers.
In the menu (Menu > tools > set > "Rot. enc.") you can chose between 2 encoder drivers: 12 and 24.
How do i enter the bootloader
Press any key when turning on the preenfm2.
Press the menu key when turning on the preenfm3.
PREENFM3
SD card Error #-6# with the preenfm3
See this thread
http://ixox.fr/forum/index.php?topic=69819.0
PREENFM2
My display remains black when i turn on the preenfm2
Check that you removed the jumper JMP3, and turn it off and on again.
The Midi over USB does not work / The Led is not flashing on midi clock beat
Must be enable in the settings.
Can i access USB drive without opening my PreenFM2
Yes you need bootloader 1.10+
The PreenFM2 registers to your computer as a mass storage and redirect all low level access to the USB stick.
Don't expect high bandwidth, but it works :-)
What are P1, P2 and P3 for ?
. P1 allows you to plug a st-link v2 debugger.
. P2 extension port (removed from PCB R5)
. P3 analog input. CV you need the adcIn branch of the github repository : https://github.com/Ixox/preenfm2/tree/adcIn
Except P1, none of them is useful today, and i cannot guarantee they will be useful someday.
TroubleShooting / It does not work
You can start by reading this thread :
http://ixox.fr/forum/index.php?topic=63509.0
And verify the different points shown of message #6.
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