P600fw

Description

This is the P600FW project, a CPU/firmware remake for the SCI Prophet 600 (http://www.vintagesynth.com/sci/p600.php). It uses a slightly modified Teensy++ board (http://www.pjrc.com/store/teensypp_pins.html) that plugs into the Z80 socket.

Links

Imogen's P600FW Website Imogen's improved P600FW (v2022+) with a user manual
My synthesizer blog (gliglisynth.blogspot.fr, my latest versions can be found there)
English forum (at www.gearslutz.com)
French forum (at forum.anafrog.com)

Installation and usage

See documentation PDFs...

License

• Source code : GNU General Public License 3.0 (free software).
• Binaries : Free for non commercial use (please contact me for commercial licensing). I (GliGli) do not endorse SequentialCircuits.com bundling this firmware with their modified Teensy++ 2.0 hardware.

History

• Alpha 20130226 : First public version.
• Beta 1.0 : First proper release.
• Stable 2.0 :
  • New user interface (moved all the membrane keypad options to: hit a button once or twice / turn the "Speed" data knob).
  • New assigner (better priority system; unison track latch; disabling voices).
  • MIDI out / SysEx patch dumps.
  • Synchronizing the Arpeggiator to MIDI clock.
  • Unison detune.
  • Dedicated vibrato (independent from the LFO).
  • Automatic modulation after a delay.
  • Many bug fixes and tweaks.
• Version 2022 : now maintained by Imogen (see https://www.image-et-son.com/).

Downloads

• Beta 1.0 (outdated):
  • Full archive : p600fw_beta_1_0.zip
  • English documentation (main version, by Bulghur) : Prophet600FirmwareUpgrade_en_beta_1_0.pdf
  • French documentation (WIP translation by GliGli) : Prophet600FirmwareUpgrade_fr_beta_1_0.pdf
  • Japanese documentation (translated by Tohk) : http://www.d1.dion.ne.jp/~ohk/p600/Prophet600FirmwareUpgrade_ja_beta_1_0.pdf
• Stable 2.0 (outdated):
  • Full archive : p600fw_stable_2_0.zip
  • English documentation : Prophet600FirmwareUpgrade_en_stable_2_0.pdf
• Version 2022 : now maintained by Imogen (see https://www.image-et-son.com/).

Demos

• Filter overdrive: p600fw_overdrive_2squares.flac
  
• Envelopes (attack time has improved since): p600fw_envelopes_reso_zaps.flac
  
• Polyphonic resonance / unison: p600fw_poly_pads_unison.flac
• Polyphonic percussive sounds with release: p600fw_poly_percussive.flac
• LFO: p600fw_hell_fo.flac
• Polymod (formants): p600fw_pmod_voices.flac
• Polymod (percussive sounds): p600fw_pmod_indus.flac
• MIDI (velocity sensitivity): p600fw_midi_velocity.flac
• Arpeggiator: p600fw_arpeggiator.flac

Donations