Jump to content

Marxon

Programmer
 View Profile  See their activity

  • Posts

    474

  • Joined

  • Last visited

  • Days Won

    4

 Content Type 

Posts posted by Marxon

  2. LPC flash problem

    in Testing/Troubleshooting

    Posted · Edited by Marxon

    Hi Elektruck,

    have you created and flashed a new "FreeRTOS project" in LPCxpresso IDE first?

    This enables the flash programmer. After this you can upload the MIOS32 bootloader.

    The LED should fade three times if it was uploaded correctly.

    Best regards

    Marxon

  3. Suggestion "current operator" controller

    in MIDIbox FM

    Posted · Edited by Marxon

    Hi,

    it would be nice to have "current operator" controllers to control

    Volume, Flag, Frequency Multiplicator, Attack Rate, Decay Rate, Sustain Level, Release Rate and Waveform of the currently selected operator.

    Like the "current instrument" controller on the Sid Synth.

    Best regards

    Marxon

  4. NRPN - "current instrument"

    in MIDIbox SID

    Posted

    Hallo wiedermals,

    gleiches Anliegen anderer Lösungsansatz:

    könnte man nicht einfach im Sequenzer (Midirouter) eine spezielle SidDrum Destination erstellen,

    die alle empfangenen current Instrument Parameter der Drum Engine (Attack, Decay...)

    zum aktiven, im Sequenzner ausgewählten Drum Instrument "umroutet"?

    Aber ich vermute, dass ich mir das zu einfach vorstelle...

    mfg

    Marxon

  6. MIDIbox SEQ V4 Release + Feedback

    in MIDIbox SEQ

    Posted

    Great work TK!

    I love your Update-Sundays :smile:

    Ok, for the case that it's really useful for other people, the enhancement is now part of the official release.

    That´s indeed very usefull.

    It improves workflow a lot beause

    i don´t need to change the mapping of my master keyboard

    if i want to play another instrument.

    Perfect!

    Have a nice evening!

    Marxon

  7. Make an encoder less sensitive?

    in MIDIbox NG

    Posted

    Hi,

    i know this is not the best way, but you could control the filter type

    with some conditional events which are depending on different encoder value ranges.

    For example:

    if_less_stop_on_match=Encoder:x:10 -> filter type 1

    if_less_stop_on_match=Encoder:x:20 -> filter type 2

    ...

    Best regards

    Marxon

  8. SID V2 multimode parameters

    in MIDIbox SID

    Posted · Edited by Marxon

    Hi

    Has anyone tried to make custom MIOS edits to add a few MIDI CC parameters to multimode?

    It's my favourite mode on the beast and would love to run it with some PW and filter effects automated.

    Guess I could try playing with the script, but I'm a n00b.

    yes you can do this but via nrpn

    http://svnmios.midibox.org/filedetails.php?repname=svn.mios&path=%2Ftrunk%2Fapps%2Fsynthesizers%2Fmidibox_sid_v2%2Fdoc%2Fmbsidv2_parameter_chart.txt

    Best regards

    Marxon

  10. [solved] FM Output problem

    in MIDIbox FM

    Posted · Edited by Marxon

    Hi again :smile:

    I was reheating every soldering when i noticed a missing trace on my board.

    post-4098-0-65100600-1365511040_thumb.jp

    post-4098-0-83636500-1365511053_thumb.jp

    It is the 5v trace which goes to the bridge and from there to the rest of the board.

    But like i said in my last post there was 5v on Ic2 Pin 1, 3, 6, 9

    even without the missing trace?

    So the new question is: where do the 5v come from?

  11. [solved] FM Output problem

    in MIDIbox FM

    Posted · Edited by Marxon

    Hi Midiboxers,

    after fixing my voltage issue, i still have a output problem :(

    It is very low and there is a lot of background noise:

    Testtone:

    test.mp3

    I allready checked:

    5V @ Ic1 Pin 1,7; Ic2 Pin 1, 3, 6, 9

    +12V @ Ic3 Pin 4; Ic6 Pin 4

    -12V @ Ic3 Pin 11; Ic6 Pin 11

    polarity of c1, c3, c5, c7, c11 ,c16, c18, c20 ,c22, c24, c26, c31, c32, c33, c34 = checked

    replaced Ic3, Ic6 = no difference

    FM-Interconnection test = passed

    Any suggestions what could be the fault?

    May some other capaciator?

    Thanks for your help

    Best regards

    Marxon

  12. LED assignment

    in MIDIbox FM

    Posted

    The direct SR assignment (for all 8 pins) saves execution time and flash memory.

    As you already noticed, flash is very reduced for PIC18F452... and performance is an important topic as well.

    You are the master of 1´s and 0´s :smile:

    I am just a little solder guy.

    So i connect the LEDs like you think it is the best way to do.

    Oder auf deutsch: du wirst schon wissen was du tust :smile:

    Danke für die Info

    Gruß

    Marxon

  14. LED assignment

    in MIDIbox FM

    Posted

    Hi Midiboxers,

    i just wondering if it is possible to change the assignment of the OP 1-4 and Instr. 1-4 LEDs?

    Because there is no option in the cs_menu_io_tables...

    Or is it necessary to connect them like in the FM Dout schematic?

    Best regards

    Marxon

  17. [solved] Address exceeds maximum range for this processor

    in MIOS programming (Assembler)

    Posted · Edited by Marxon

    Hi all,

    if i try to compile one of the orginal FM 1.4 pic18f452.asm

    via make then i get a lot of

    "Address exceeds maximum range for this processor."

    make: *** [setup_pic18f452_mbfm_tk.hex] Error 1

    error.txt

    I suspected there is may some pic18f4685 option enabled

    inside the asm but they are all turned off.

    The pic18f4685.asm are compiled successful.

    I have installed the correct version from the toolchain:

    SDCC 2.80

    MYSYS 1.0.11

    Gputils 0.14.3 (also tried 1.0)

    The forum search did not find a working solution.

    Someone know what to do?

    Best regards

    Marxon

  18. Fehler in mbfm_dout_default.pdf

    in Deutsch

    Posted · Edited by Marxon

    Hi!

    Mir ist auf dem mbfm_dout_default.pdf Schaltplan ein

    kleiner Fehler aufgefallen:

    Der Hinweis über die Matrix Taster verweist

    auf die mbfm_dout_default.pdf.

    Es ist jedoch bestimmt die mbfm_din_default.pdf gemeint.

    Für den Fall, dass ich richtig liege,

    ist hier eine korrgierte pdf. :smile:

    mbfm_dout_default.pdf

    Mfg

    Marxon

  20. trimmer/pot question

    in Parts Questions

    Posted

    I am that guy...

    The rotary switch in the video could be used in a digital circuitry or only analog one?

    I dont really understand what you mean.

    You can use that switch in every circuit.

    It is like you have 8 single switches but you can turn on only one simultaneously.

  21. OPL voltage problems (fixed) -> now PSU voltage problem

    in Testing/Troubleshooting

    Posted · Edited by Marxon

    Hi Sauraen,

    thanks for your help!

    I measured current like you said: 25mA (i am using only one YMF262).

    But now it gets even more confusing:

    Like said before i powered the OPL module with +12V/-12V/Gnd and

    +5V without its "own" GND.

    After adding the additional GND line the Core boots up....?

    But there is still some fault because the Testtone sounds distorted.

    testtone.mp3

    Best regards

    Marxon

  25. OPL voltage problems (fixed) -> now PSU voltage problem

    in Testing/Troubleshooting

    Posted

    Hi again and happy Eastern,

    sorry for neglecting this topic but

    i started building a Midibox NG, too so the FM Synth had to take a little break ;)

    This is the current status:

    I am using a second transformer now to power

    the +5 rail.

    Unfortunately the FM still dont work.

    1)

    OPL powered with J3 (+12V/GND/-12V) and J1 (+5V)

    -> correct Voltages on IC sockets (no TL074 plugged)

    -> correct Voltages YMF262 (Pin 1, 7): J3 (Vss)

    -> correct Voltages YAC512 (Pin 1, 3, 5, 9): J3 (Vss)

    -> OPL power led = off

    2)

    same as 1) and OPL connected to Core

    via J2_1 and J2_2 except D6 and D7

    -> correct Voltages

    -> Core boots up (FM Testtone)

    -> OPL power led turns on 1 sec after powering

    3)

    same as 2) and D6 or D7 connected

    -> Core does not boot

    -> OPL power led off

    -> +5V drops +3,8V.

    Solderings and connections are 100% OK

    Double and tripple checked.

    I am afraid the YMF has died during all my fix attempts..

    Any other Ideas are welcome :smile:

    Best regards

    Marxon

×
×
  • Create New...