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Messages - Xavier

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31
PreenFM2 / Re: new matrix destination
« on: January 18, 2018, 10:00:35 PM »
You have RelC that modifies all "carrier" envelope releases and RelM that modify all "modulator" envelope releases.

I know i have to update the doc  ::)

32
PreenFM2 / Re: VolcaFM as development platform for PreenFM
« on: January 17, 2018, 08:54:13 AM »

Hi,

Only the audio engine of the preenfm2 firmware could be used.
You'll have to rewrite the code for the surface control, the audio output, the storage, the display, the midi.

But i would love to see that :)

Xavier

33
PreenFM2 / Re: Problem starting PreenFM2
« on: January 17, 2018, 08:47:10 AM »

I saw this for 2 different reasons :
. Bad display
. bad solder on the power pin

Check the second one.
Where did you buy it ? Mouser change without any problem OLED screen if you email them a picture.

34
PreenFM2 / Re: Problem starting PreenFM2
« on: January 14, 2018, 06:00:40 PM »
I do have an issue with the screen display.  Between lines two and line three there are lines above the characters.  Is this normal or do I possibly have a bad screen/ connection with the screen?

Yes, a picture of the display would help to understand what this can be.

35
PreenFM2 / Re: Problem starting PreenFM2
« on: January 09, 2018, 09:21:03 PM »
No, fat32 is fine.

36
PreenFM2 / Re: Problem starting PreenFM2
« on: January 09, 2018, 07:01:42 PM »
... and if the one i shipped does not work. I'll ship you a working one.

37
PreenFM2 / Re: Problem starting PreenFM2
« on: January 09, 2018, 07:00:26 PM »

Ah OK so you have a real preenF405  :)
The preenfm405 to usb stick connection is direct, so there should not be any problem.
And i test them all before shipping.

What USB stick did you test with ?
You said I would suggest to try with a third one.

38
PreenFM2 / Re: Problem starting PreenFM2
« on: January 09, 2018, 06:51:58 PM »
It is in the pfm2 folder as instructed.

OK perfect, there were recently people who soldered SMD components on preenf405 PCB themself. Are you one of those ?
Or is it a preenf405 you bought from me ?

39
PreenFM2 / Re: Problem starting PreenFM2
« on: January 09, 2018, 06:50:08 PM »
I can not see it in Mac or Windows.  It shows the block on all of the OLED when I start the synth.  Tried the instructions in the FAQ and no solution.

By the way to see it on mac or window you have to enter bootloader mode.
http://ixox.fr/preenfm2/manual/upgrade-firmware/
If you see only blocks on your display, it's not in bootloader mode.
So either you didn't press anykey when  you swtiched your preenfm on, or your key press are not detected.

40
PreenFM2 / Re: Problem starting PreenFM2
« on: January 09, 2018, 06:45:51 PM »
Haha just went to the other thread and it seems that was the same problem.. Thanks Lokki :)
http://ixox.fr/forum/index.php?topic=69379.0

41
PreenFM2 / Re: Problem starting PreenFM2
« on: January 09, 2018, 06:44:39 PM »
It shows the block on all of the OLED when I start the synth.

That make me thing you didn't put files in a /pfm2/ directory, did  you ?

42
PreenFM2 / Re: midi offset
« on: December 29, 2017, 03:13:52 PM »

Because of the page change, you may have missed the latest message of page 1.

43
PreenFM2 / Re: midi offset
« on: December 29, 2017, 09:37:34 AM »

also on a related note: is there any reason why the frequency array in waves2.c is not declared as a const? if a scala file is used that array is not manipulated i think. would that not be more efficient? (my tuneFactor should also be const :-))

On microcontroller, const are not moved to RAM, they stay on the flash memory, so they're slower. That's fine for your tuneFactor, but not for value used in the real time audio engine.

44
PreenFM2 / Re: midi offset
« on: December 29, 2017, 09:34:07 AM »
I see.
Osc objects are created before the midi config values are read from the USB drive.

Osc are initialized from this line :
https://github.com/Ixox/preenfm2/blob/master/src/PreenFM.cpp?ts=4#L107

And the USB configuration file is read just bellow :
https://github.com/Ixox/preenfm2/blob/master/src/PreenFM.cpp?ts=4#L138

You can try to move up the UsbKey block (line 133 to 139). Moving init block often lead to freeze because of null pointer exception ;)

Or move you frequency adjust code from init() to a Osc static method and call it from PreenFM.cpp bellow UsbKey init... line 145 for exemple.

45
PreenFM2 / Re: modsource idea (SOLVED)
« on: December 28, 2017, 09:18:20 AM »
or is this already possible and i'm missing how to do this?
EDIT: is lfo1 random set to frequency 0.00 the solution?
EDIT2: YES, that works, wohoo, nice!

 ;)
and LFO Ksyn = 0.00

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