TK.

Hi Vybe, today I've double-checked this issue on my MB64 - works ok so far, button numbers 17-20 are the right ones. Best Regards, Thorsten.

Hi Cyril, ok, here my first questions: did you check the polarity of the MIDI plugs (see the MBHP core schematic on the right side)? Did you mix MIDI In and MIDI Out? Which MIDI interface are you using (Gameport?) Best Regards, Thorsten.

Hi Cyril, ok, here my first questions: did you check the polarity of the MIDI plugs (see the MBHP core schematic on the right side)? Did you mix MIDI In and MIDI Out? Which MIDI interface are you using (Gameport?) Best Regards, Thorsten.

Hi Seb, based on the statement in this posting: http://www.industrycommunity.com/ee/ee-2/messages/521.html your display possibly requires a negative voltage at pin 3 (contrast input) However, Douglas Pederick noticed the same problem with his HD44780 display and he found this solution: http://www.ucapps.de/mbhp/mbhp_lcd_neg_voltage.gif http://www.ucapps.de/mbhp/mbhp_lcd_neg_voltage_connection.gif When you study the schematic of the core module, you will notice that some components of this circuit (like the 1000uF cap and the 7805) are redundant. Just inform me if you have problems to build the circuit based on these plans, in this case I will test the circuit by myself and draw a new schematic especially for the MBHP core module --- but it can take some days until I will find the time for this. Best Regards, Thorsten.

Hi Seb, based on the statement in this posting: http://www.industrycommunity.com/ee/ee-2/messages/521.html your display possibly requires a negative voltage at pin 3 (contrast input) However, Douglas Pederick noticed the same problem with his HD44780 display and he found this solution: http://www.ucapps.de/mbhp/mbhp_lcd_neg_voltage.gif http://www.ucapps.de/mbhp/mbhp_lcd_neg_voltage_connection.gif When you study the schematic of the core module, you will notice that some components of this circuit (like the 1000uF cap and the 7805) are redundant. Just inform me if you have problems to build the circuit based on these plans, in this case I will test the circuit by myself and draw a new schematic especially for the MBHP core module --- but it can take some days until I will find the time for this. Best Regards, Thorsten.

Hi Kent, please try it, because it will be hard to get a cheap non-euro size PCB. :-/ Maybe it's better to put CON9 in the middle and to arrange two slaves at the left, two at the right side. The slaves itself are selected over the data bus when A0=1. Every slave has one dedicated select bit. For the slave ID setup I plan to provide a seperate MIOS application which initiates a special password sequence to change the ID. Only one slave should be connected to the bus at this time. The slave will save the ID in EEPROM so that this procedure is only required once. Best Regards, Thorsten. P.S.: although my plans are clear, I don't will find the time to realize this application before May. Other projects have higher priority

Hi Pezkall, an AOUT interface to external effect gear (also Moog filter, etc), accessible via Control Matrix and CC, is planned. :) Best Regards, Thorsten.

Danke fuer das freundliche Angebot, aber erfahrungsgemaess hilft ein Redesign der Homepage oder Menuestruktur nur kurzzeitig, weil sich bei meinen Designs die Fakten, Prioritaeten, Moeglichkeiten, etc. quasi woechentlich aendern. ;-) Um Aufwand zu sparen, moechte ich zuerst die PIC16F Projekte komplett auf MIOS portieren, bevor ich die Homepage Struktur komplett neu gestalte (so dass sie auch wieder lesbarer wird). Gruss, Thorsten.

I never noticed these effects - did you program the chip in-circuit? Best Regards, Thorsten.

I never noticed these effects - did you program the chip in-circuit? Best Regards, Thorsten.

Hi Rogic, yes --- very important --- the PIC supply voltage should never exceed 5V, thats the job of the 7805, it limits (and regulates) the voltage to this level Best Regards, Thorsten.

Hi Seb, could you tell me the farnell order number? Maybe the pinning is different to common LCDs Best Regards, Thorsten.

Hi Seb, could you tell me the farnell order number? Maybe the pinning is different to common LCDs Best Regards, Thorsten.

thats because RS sells these encoders as "EC16B36", however, maybe a typo on their site. I changed the number to "EC16B", this should cover all types Best Regards, Thorsten.

I wished my danish skills were better, but the only words I still remember from my last holidays in denmark are "smörrebröd" and "tuborg beer" ;-) We can publish this circuit officially when it has been verified. I cannot guarantee that it really works before I've tested the whole system (however, I don't expect unsolvable problems...). Which dimensions did you use for the board? Does it fit on a common euro size PCB (160/100 mm)? Christoffer noticed that I used a 10 MHz crystal instead of 20 MHz. This was an error in the schematic --- 20 MHz are required for the maximum performance. Best Regards, Thorsten.

Hi Cyril, yes, LED maps can only be modified with the mk_syx script or Serge's Editor. See also: http://www.midibox.org/cgi-bin/yabb/YaBB.cgi?board=concepts;action=display;num=1044220843;start=4#4 you have to activate the "toggle" function for every button seperately. This can be done in the MIDI learn menu. Go into the menu, press the snapshot button to select the mode, thereafter send the MIDI event to the box and press the button which should learn this MIDI event. Alternatively you can also change the button behaviour with mk_syx or the Editor... Best Regards, Thorsten.

Hi Cyril, yes, LED maps can only be modified with the mk_syx script or Serge's Editor. See also: http://www.midibox.org/cgi-bin/yabb/YaBB.cgi?board=concepts;action=display;num=1044220843;start=4#4 you have to activate the "toggle" function for every button seperately. This can be done in the MIDI learn menu. Go into the menu, press the snapshot button to select the mode, thereafter send the MIDI event to the box and press the button which should learn this MIDI event. Alternatively you can also change the button behaviour with mk_syx or the Editor... Best Regards, Thorsten.

MIOS only supports 2 LCDs maximum, but sure, you can add as much LCDs as you want - every LCDs requires a dedicated output pin for the E signal, and you have to integrate the drivers into the application by yourself Best Regards, Thorsten.

MIOS only supports 2 LCDs maximum, but sure, you can add as much LCDs as you want - every LCDs requires a dedicated output pin for the E signal, and you have to integrate the drivers into the application by yourself Best Regards, Thorsten.

Hi RAF, I use picp under Linux http://www.cosmodog.com/pic/ but it only works with the PICstart programmer. For JDM Ponyprog http://members.tripod.com/lancos/prog.html could work, but it seems that the PIC16F87x option is not available for the Linux version, and it doesn't support PIC18F types :-/ Best Regards, Thorsten.

Hi RAF, I use picp under Linux http://www.cosmodog.com/pic/ but it only works with the PICstart programmer. For JDM Ponyprog http://members.tripod.com/lancos/prog.html could work, but it seems that the PIC16F87x option is not available for the Linux version, and it doesn't support PIC18F types :-/ Best Regards, Thorsten.

PIC18F452-I/P PDIP-40 siehe auch das "Questions&Answers" auf der MIOS Hauptseite (beachte auch den Wink mit dem Zaunpfahl ;-)) Gruss, Thorsten.

Die Reichelt-Bestellnummer fuer das Graphik-Display ist LCD 64240A LED --- kostet allerdings 66 Euro, dafuer bietet es die hoechste Flexibilitaet. In Zukunft wird MIOS allerdings auch guenstigere Displays unterstuetzen (zwei werden mir demnaechst leihweise zugeschickt, so dass ich die entspr. Treiber programmieren kann). Character Displays: hier sind zwei 2x40 Displays ein muss, ansonsten wirst Du nicht wirklich gluecklich. Am besten schaust Du mal bei EBay vorbei, dort konnte ich bspw. vor ein paar Wochen 4 Stueck fuer insgesamt 30 Euro ersteigert. Gruss, Thorsten.

Ok, now I know what you mean. This is not a bug in the snap mode, but just another variation. When you take a look to the MB64 SFB event chart http://www.ucapps.de/midibox/midibox64_sfb_table.txt you will notice that MB64 offers the possibility to switch banks with automatic saving. It depends on the "work-flow" which mode is the right for you. However, in MIDIbox Plus there wasn't place to integrate such an option into the menu, but sure, you can try it :) I will send you the source code. Best Regards, Thorsten.

It seems that this is a bug in the "snapshot after power-on" feature. It has been implemented on a very dirty way - possibly values will not be sent when the saved pot positions were the same like the current positions. I will check this with the next release... The voltage level is superb! It would be interesting if you also notice jitter when you increase or decrease the input voltage to the voltage regulator (@J1! -- I don't mean the 5V behind the voltage regulator). Does your PSU allow to vary the voltage? Best Regards, Thorsten.