raphael

Nein, ein PIC ist das sicher nicht. Analog-Ausgänge gibt es bei PICs nicht.

Look at the front panel (http://www.ucapps.de/midibox_sid_cs/mbsid_panel.fpd) You`ll need Frontpanel Designer for this. Get it here: http://www.schaeffer-apparatebau.de/ It's up to you what you want to use. I'd prefer non-detented for all the synth functions and a detented one for menu navigation. At Thorstens design there are no switched encoders. But once again: It`s up to you to do your individual desing. Right, no pots, just encoders. They are on the module sites. For example the MIDI jacks are on the BOM for the core module. Thorsten ot them from Reichelt (www.reichelt.de). They are called "TASTER 3301D" Manufacturer is APEM Part Number PHAP3301D (There are several heights available). These are original knobs from Waldorf. But Waldorf not loger exists (http://waldorf.synth.net/) There was a bulk order some years ago... search the forum.

Just solder it like on the unmodified (original) core module! There is no difference beside the bridging of pins 1 and 3 of the 7805 (leave the 7805 out). All parts on the left side: 1 x B40C800 rectifier 2 x 2200uF/16V electolytic cap 1 x 100nF cap 1 x 330nF cap 1 x 7809 1 x 220 Ohm resistor Reuse the swith and power plug from the C64! Raphael

You`re speaking of TK's MBSID? It`s 2x20 (5 buttons). The disign is a special format (.fpd) used by a program called "Frontpanel Designer", available at Schaeffer Apparatebau (http://www.schaeffer-apparatebau.de/). As Frontpanel Designer has no Export-Function to other file formats, the only way to do it, is to print it in a PDF file with something like FreePDF (http://freepdfxp.de/). I deleted all the design elements (labels and frames) in Frontpanel Designer and imported the PDF into the Gimp (www.gimp.org).

Duggle is working on a PS/2 keyboard interface for the MidiBox. Search the forum.

No problem. I`ve reprogrammed a PIC more than one hundered times and it still works. ;D

Dachte mir schon, dass es das schon mal gab. Hab wohl nach den falschen Stichwörtern gesucht.

I've got one from Mike last year and it was exatly like on the uCApps site. So better ask Mike if he send you the right PCB. AFAIK there is no new design for this board. Raphael P.S: Mabe he send you the new AOUT-LC (LowCost): See this thread: http://www.midibox.org/forum/index.php?topic=4037.0 This module works with a resistor ladder instead of the expensive MAX525.

Schau Dir mal mit MidiOX an, was der Jomox genau sendet. Ich vermute, dass nur ein NoteOn gesendet wird (0x9X XX XX). Die NoteOn Message sorgt dafür, dass die MidiBox den entspechenden Ausgang auf +5V setzt. Für einen Impuls müsste nun aber der Ausgang gleich wieder auf 0V (aus)geschaltet werden. Das macht normalerweise eine entsprechende NoteOff Message (0x8X XX XX oder aber 0x9X XX 00). Wenn also der Jomox den NoteOff nicht sendet, musst Du programmieren, dass der Ausgang wieder automatisch abgeschaltet wird. Das meine Ich mit "per hand auf 0V". Alternativ kannst Du auch einen MBFilter dazwischenschalten, der dann nach jeder NoteOn Message einfach eine entsprechende NoteOff Message sendet.

Fortsetzung hier: url removed TK: habe die beiden Artikel gemerged

Um ein bisschen programmieren wirst Du nicht drum rumkommen. Wenn ich Dich richtig verstanden habe (und das ist nicht so leicht ;)), willst Du folgendes: Dein Core empfängt eine Midi Note (Note On) und erzeugt darauf hin einen kurzen Spannungsimpuls an einem DOUT Ausgang. Richtig?

Hmmm... da bin ich mit meinem Latein am Ende. Wenn der Encoder am selben 74HC165 funktioniert, die Taster aber nicht, dann kanns eigentlich nur noch an der Software liegen. Raphael

Fortsetzung zu http://www.midibox.org/forum/index.php?topic=5843.0 (Ich kann dort nicht posten...warum eigentlich?) Das ist schon OK. SC ist die Clock. Da liegt eine Rechteckspannung an. Dein Multimeter zeigt dir dann Mist an.... Also das passt nicht! Am Pin des 74HC165 müssen 5V anliegen, solange der Taster nicht gedrückt ist, wenn er gedrückt ist sollten da 0V zu messen sein! Raphael

Einfachste Lösung wäre wohl MIDIO128. Falls Du nur Note On Messages hast, musst Du den Ausgang halt selbst wieder auf 0V schalten.

Datasheet says: NT3881D controller, which is NOT compatible to the HD44780! Datashet Display:http://www.optrex.com/SiteImages/PartList/SPEC/51505aee.pdf But it should be possible to modify the HD44780 driver for this controller. Look at the datasheet: http://www.apollodisplays.com/pdf/NT3881D.pdf

Right. No regulator on the Core because the PSU already has one. You don't even have to do that because there are precompiled SysEx files for all configurations included in the MBSID application zip-file: setup_8580_with_cs.syx setup_8580_slave1.syx ... setup_6581_with_cs.syx setup_6581_slave1.syx

Have you searched the forum? http://www.midibox.org/forum/index.php?topic=4521.0 With the C64 psu you can supply both SID modules as every SID has it`s own regulator. http://www.ucapps.de/mbhp/mbhp_4xsid_c64_psu_optimized.pdf

Hast Du schon mal direkt am Stecker auf dem DIN Modul gemessen, ob da 0V anliegen, wenn du eine Taste drückst? Oder haben deine Taster alle eine gemeinsame Masse-Verbindung und die ist unterbrochen?

I don't know if there is enough memory left to implement such a function... However, there is a random patch generator (perl-script) included in the preset patches zip-file: http://www.ucapps.de/midibox_sid/preset_patches_20051109.zip

As Jurbo said: Plan the case first! I do my designs in front panel designer. Then I print it on paper and cut out the holes tor buttons, encoders.... For bigger panels I glue the paper to a cardboard). With this method it's relatively easy to find the right spacing and placement of the parts.

Bist Du dir sicher, dass Du das Backlight richtig herum angeschlossen hast? Wenn wirklich 5V zwischen Pin 15 und 16 anliegen, müsste das Ding leuchten.

No problem, I also left these out.

Maybe recompiling is enough (I don`t think so...). At least you would have to change some parts of the source. Look at the changes Thorsten has made for the 18F4620. But even a recompiled version of MIOS will not work if the 18F4680 has the same silicon bug as Thorsten has found during the 18F4620 development and which is still not fixed by microchip :( http://www.midibox.org/forum/index.php?topic=4838.0 So, better to go for a 18F452. Where do you live? Maybe you can buy 18F452s at Mikes or SmashTV's shop. Raphael

Hi havensole, You can find some hints for MIDI programming here: http://www.borg.com/~jglatt/tech/miditech.htm First of all, Â in depth knowledge of the MIDI protocol is a must. Read the MIDI specifications (There is a link on the site I mentioned.) Concerninjg the programming language: You want to build some hardware stuff, so the hardware you use determines the languages you can use. E.g. for the PIC microcontroller you have the choice between assembler and C. ( in general C++ is no optionfor microcontrollers!) I think MIOS is a good starting point. It's open source, so you can learn a lot by studying the code ;) Concerning synth programming: Search the web for DSP stuff. All modern synths are based on DSPs. There are some good links here: http://www.harmony-central.com/Computer/Programming/ (scoll down to the DSP References section). Besides programming skills you will need good knowledge on FFT, filter algorithms and so on... Raphael