pentevo – /kicad/rev_d+/scripts/mfb3_1play.py

Rev 1288 – pentevo: add rev.D+ for new MCU

lvd — Sun, 19 Oct 2025 20:07:17 +0300

lvd – 1 file(s) modified
pentevo: add rev.D+ for new MCU

+ /kicad/rev_d+ (copied from /kicad/rev_d@1287)

Rev 1248 – pentevo: rev D: mfb3: verification of expressions (WIP)

lvd — Sat, 07 Jun 2025 17:58:24 +0300

lvd – 6 file(s) modified
pentevo: rev D: mfb3: verification of expressions (WIP)

~ /kicad/rev_d/scripts/mfb3.log
+ /kicad/rev_d/scripts/mfb3_1play.py (copied from /kicad/rev_d/scripts/mfb3_lowpass.py@1247)
~ /kicad/rev_d/scripts/mfb3_2play.py
+ /kicad/rev_d/scripts/mfb3_5play.py (copied from /kicad/rev_d/scripts/mfb3_4play.py@1247)
+ /kicad/rev_d/scripts/mfb3_6play.py (copied from /kicad/rev_d/scripts/mfb3_4play.py@1247)
~ /kicad/rev_d/scripts/mfb3_lowpass.py

Rev 1246 – pentevo: rev D: mfb3: derived formulas for R/C values -> ...

lvd — Tue, 03 Jun 2025 22:14:13 +0300

lvd – 4 file(s) modified
pentevo: rev D: mfb3: derived formulas for R/C values -> w1 w2 q values

+ /kicad/rev_d/scripts/mfb3.log
+ /kicad/rev_d/scripts/mfb3_2play.py
~ /kicad/rev_d/scripts/mfb3_lowpass.py
+ /kicad/rev_d/scripts/mfb3_play.py

Rev 1245 – pentevo: rev D: start developing mfb3 script

lvd — Sun, 01 Jun 2025 16:41:40 +0300

lvd – 2 file(s) modified
pentevo: rev D: start developing mfb3 script

~ /kicad/rev_d/scripts/mfb3.png
+ /kicad/rev_d/scripts/mfb3_lowpass.py (copied from /kicad/rev_d/scripts/mfb_lowpass.py@1244)

Rev 1244 – pentevo: rev D: move scripts/etc to scripts/ dir

lvd — Sun, 01 Jun 2025 15:22:29 +0300

lvd – 9 file(s) modified
pentevo: rev D: move scripts/etc to scripts/ dir

x /kicad/rev_d/mfb_lowpass.py
+ /kicad/rev_d/scripts
+ /kicad/rev_d/scripts/draw.py
+ /kicad/rev_d/scripts/mfb3.png (copied from /kicad/rev_d/sim/mfb3.png@1243)
+ /kicad/rev_d/scripts/mfb_lowpass.py (copied from /kicad/rev_d/mfb_lowpass.py@1243)
+ /kicad/rev_d/scripts/tl431_6v.py (copied from /kicad/rev_d/tl431_6v.py@1243)
+ /kicad/rev_d/scripts/transfer.py
x /kicad/rev_d/sim/mfb3.png
x /kicad/rev_d/tl431_6v.py

Rev 1243 – pentevo: rev D: mfb_lowpass.py: add accounting for random errors in ...

lvd — Sun, 01 Jun 2025 02:14:49 +0300

lvd – 2 file(s) modified
pentevo: rev D: mfb_lowpass.py: add accounting for random errors in selected components

~ /kicad/rev_d/mfb_lowpass.py
+ /kicad/rev_d/sim/mfb3.png

Rev 1242 – pentevo: rev D: add more experimental data for YM levels, ...

lvd — Wed, 28 May 2025 23:24:21 +0300

lvd – 5 file(s) modified
pentevo: rev D: add more experimental data for YM levels, also add KC89C72 data

~ /kicad/rev_d/AUDIO.txt
~ /kicad/rev_d/mfb_lowpass.py
~ /kicad/rev_d/Sheet3.kicad_sch
~ /kicad/rev_d/sim/distributed_highpass_12Hz.cir
+ /kicad/rev_d/sim/distributed_lopass_3rd_order_beep.cir

Rev 1241 – pentevo: rev D: changed amplification for YM, added AY -3dB ...

lvd — Mon, 26 May 2025 23:10:48 +0300

lvd – 4 file(s) modified
pentevo: rev D: changed amplification for YM, added AY -3dB pad, remade lowpass for AY, added some ideas regarding highpass (WIP)

~ /kicad/rev_d/AUDIO.txt
~ /kicad/rev_d/mfb_lowpass.py
~ /kicad/rev_d/Sheet3.kicad_sch
~ /kicad/rev_d/sim/distributed_lopass_3rd_order.cir

Rev 1240 – pentevo: rev D: mfb_lowpass.py: add calculation of another lowpass for ...

lvd — Sun, 25 May 2025 23:19:54 +0300

lvd – 2 file(s) modified
pentevo: rev D: mfb_lowpass.py: add calculation of another lowpass for beeper

~ /kicad/rev_d/mfb_lowpass.py
~ /kicad/rev_d/Sheet3.kicad_sch

Rev 1238 – pentevo: rev D: mfb_lowpass.py: add sorted prints by freq and ...

lvd — Sun, 25 May 2025 14:00:04 +0300

lvd – 1 file(s) modified
pentevo: rev D: mfb_lowpass.py: add sorted prints by freq and by Q

~ /kicad/rev_d/mfb_lowpass.py

Rev 1237 – pentevo: rev D: mfb_lowpass.py: better results printing, remove debug prints

lvd — Mon, 19 May 2025 22:06:06 +0300

lvd – 1 file(s) modified
pentevo: rev D: mfb_lowpass.py: better results printing, remove debug prints

~ /kicad/rev_d/mfb_lowpass.py

Rev 1236 – pentevo: rev D: mfb_lowpass.py: make filter element values calc, fit ...

lvd — Mon, 19 May 2025 00:05:45 +0300

lvd – 1 file(s) modified
pentevo: rev D: mfb_lowpass.py: make filter element values calc, fit to preferred values, calc real parameters

~ /kicad/rev_d/mfb_lowpass.py

Rev 1235 – pentevo: rev D: mfb_lowpass.py: make range selector from preferred values ...

lvd — Sun, 18 May 2025 23:33:26 +0300

lvd – 1 file(s) modified
pentevo: rev D: mfb_lowpass.py: make range selector from preferred values list

~ /kicad/rev_d/mfb_lowpass.py

Rev 1234 – pentevo: rev D: mfb_lowpass.py: add as comments some formulas suitable ...

lvd — Wed, 14 May 2025 23:52:59 +0300

lvd – 1 file(s) modified
pentevo: rev D: mfb_lowpass.py: add as comments some formulas suitable for component values calculation

~ /kicad/rev_d/mfb_lowpass.py

Rev 1233 – pentevo: rev D: mfb_lowpass.py: more bounding for values to get ...

lvd — Wed, 14 May 2025 08:52:40 +0300

lvd – 1 file(s) modified
pentevo: rev D: mfb_lowpass.py: more bounding for values to get single and pretty solution for transfer function

~ /kicad/rev_d/mfb_lowpass.py

Rev 1232 – pentevo: rev D: mfb_lowpass.py: add pretty printing

lvd — Tue, 13 May 2025 10:50:47 +0300

lvd – 1 file(s) modified
pentevo: rev D: mfb_lowpass.py: add pretty printing

~ /kicad/rev_d/mfb_lowpass.py

Rev 1231 – pentevo: rev D: add transfer func calculation in terms of ...

lvd — Tue, 13 May 2025 10:44:13 +0300

lvd – 1 file(s) modified
pentevo: rev D: add transfer func calculation in terms of gain, cutoff freq and quality

~ /kicad/rev_d/mfb_lowpass.py

Rev 1230 – pentevo: rev D: fix tl res calc (typo in naming); ...

lvd — Tue, 13 May 2025 10:05:17 +0300

lvd – 3 file(s) modified
pentevo: rev D: fix tl res calc (typo in naming); add audio reqs/thoughts file; start python prog to calc mfb lowpass filters and select values for it

~ /kicad/rev_d/AUDIO.txt
+ /kicad/rev_d/mfb_lowpass.py
~ /kicad/rev_d/tl431_6v.py