Search found 5 matches

by quarterturn
Wed May 20, 2020 9:55 am
Forum: Hardware
Topic: Fluxamasynth v3.0 Arduino & MIDI simultaneous
Replies: 2
Views: 370

Re: Fluxamasynth v3.0 Arduino & MIDI simultaneous

I guess for this to work it has to be wired so the MIDI jack goes to the Serial1 RX, and then SoftwareSerial has to be used to send it back out again. I'm not sure how well that will work at the MIDI baudrate though. For now it's enough to have control mode knobs assigned to the CCs, Program Changes...
by quarterturn
Tue May 19, 2020 6:16 pm
Forum: Hardware
Topic: Fluxamasynth v3.0 Arduino & MIDI simultaneous
Replies: 2
Views: 370

Fluxamasynth v3.0 Arduino & MIDI simultaneous

Is there a way to make both MIDI and Arduino serial input available to the sound chip at the same time? I tried using the right-hand jumper and the custom MIDI input on the TX pin (Arduino Leonardo), but it seems to block booting. What I'd like to accomplish is have the Arduino handle the tasks of s...
by quarterturn
Wed Jul 06, 2011 3:10 pm
Forum: Hardware
Topic: Fluxamasynth filter
Replies: 3
Views: 7577

Re: Fluxamasynth filter

Well, that there's a resonant lowpass filter at all is pretty good. As far as I can tell "pushing" the filter just leads to clipping or heavy odd harmonics on some voices, eg. bank 0 voice 1. I have not yet figured how to get it to switch to bank 1.
by quarterturn
Wed Jul 06, 2011 12:05 pm
Forum: Hardware
Topic: Fluxamasynth filter
Replies: 3
Views: 7577

Re: Fluxamasynth filter

On further reflection, badgap voltage has to refer to the DAC. Darn!
by quarterturn
Wed Jul 06, 2011 11:56 am
Forum: Hardware
Topic: Fluxamasynth filter
Replies: 3
Views: 7577

Fluxamasynth filter

Does anyone know if the SAM2195 does the lowpass filter in software or is it analog in nature? I see in the datasheet a reference to "VBG pin 3 Bandgap Voltage", though this is not referenced in table 6 for the filter. Well, I guess there is only one way to find out... I'll have to experiment with d...