bloodniece

Hi all, JUst got my lcd to work. I guess i must have zapped my tianma with static cause my new 2x40 optrex works :) I'm a little confused on the instructions for centering the 2x40 display. Could someone explain the procedure to a coding novice. Thanks, Blood

yes, it is mb64. ok, i'm reassigning them cool thanks

Thorsten, I swapped 'em and the same thing occurs. Would those 3 contacts actually send a midi message or are those MiOS exclusive ( i'm using midiox to monitor since my LCD is not working.) I should also note that the other side of that IC works. blood

ok, so i got AIN working and all DIN buttons work except buttons 1+2+3+4, which are needed to do the menu of course. I doubled check my soldering but 3 of the four buttons don''t work. Bad button? Meter test, no good button. Out of curiousity I try bypassing the buttons and shorting from ground on J3 to the individual pins on IC1 (i.e. pins I7,I6,I5) and still no dice. This works on all 29 other buttons except these. Perhaps a bad 74HC165? I know you can reassign the menu buttons with code but I'm at a complete loss on where and how. I'm gettin so close to midibox meltdown. thanks< blood

Thorsten, I finally grounded the ain inputs to the power supply and BINGO everything works. The DIN had some short circuits from sloppy soldering. The LCD is still glowing green but no messages :( Thanks a ton, Blood

I'm not really seeing any difference clamping unused inputs to ground. I'm only using 16 pots so I left out 2 4051. Should I clamp all unused inputs from J3 and J4 on AIN to ground or just the outputs from J6 A2 and A3 to ground and is case ground or the ground from j5 gonna work, cuz i tried all of these and still no message on the lcd just a green glow and contrast all the way and down and midi messages a blaze. also only button 1 from din sends a midi message all others are dead.

yup, its sending midi messages so its probably my wiring. Its sending lots of midi messages actually over all 16 channels and pretty fast too. On the wiring is VD (CORE) the same as VCC (LCD)? Thanks! Blood

hi, I'm having trouble getting the Tianma 2x40 lcd module to work with mb64. Reading the spec. sheet I noticed that it's controller is a KS0066. I realize now that its the hitachi based modules that work. Is there any hope for these or should I buy another module that is HD based? Thanks, Blood

got it! mios loaded! mbhp64 loaded! lcd flickers with no characters ??? pluggin away thanks!

my core is all assembled and i've connected power and midi in and out to pc (running midiox) i'm not receiving an upload request, however, when I short 2 of the pins on the midi out jack I'm receiving random midi messages (see below.) My pic is alive, but not quite there. Midi jacks wired incorrectly? Thanks, blood TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT 0003D6ED 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0003DA07 1 -- C0 6F -- 1 --- PC: Shanai 0003DA07 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00040EB5 1 -- FF -- -- -- --- System Reset 0004A159 1 -- F3 00 -- -- --- Song Select 0004A9A8 1 -- FF -- -- -- --- System Reset 0004A9BD 1 -- FC -- -- -- --- Stop 0004A9BE 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004A9BF 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004A9BF 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004A9C2 1 -- FC -- -- -- --- Stop 0004A9C3 1 -- C1 31 -- 2 --- PC: String Ens 2 0004A9C6 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004A9CD 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004BF1F 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004BF44 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004BF66 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004BFA2 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004BFA4 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004BFA5 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004C116 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004C28F 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0004C292 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00053FF5 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0005440A 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00054723 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0005499A 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 0005499B 1 -- C1 38 -- 2 --- PC: Trumpet 0005499B 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00054A72 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00054A78 1 -- C1 01 -- 2 --- PC: Brite Acc. Piano 00054A79 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00054A7B 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00054B77 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00054BC8 1 -- FC -- -- -- --- Stop 00054BC8 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00054BCD 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00054BCD 1 -- C1 01 -- 2 --- PC: Brite Acc. Piano 00054BDC 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00054CDA 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano 00054D67 1 -- C1 00 -- 2 --- PC: Acc. Grand Piano B74C620C 1 -- C1 F7 -- 2 --- PC: Reverse Cymbal 00054D6F 1 -- FE -- -- -- --- Active Sensing 00054DB3 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00054DFC 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00054DFF 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00054E73 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055037 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055258 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005535F 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005541C 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055476 1 -- FF -- -- -- --- System Reset 000554DC 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005559D 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055663 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005572A 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 000557E2 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 000558A4 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005595F 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055A14 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055AD4 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055B95 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055C54 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055D14 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055DD5 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055E8F 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00055F4B 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005600B 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 000560CD 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056186 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005624C 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056300 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 000564F5 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056591 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005663F 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 000566F5 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056798 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056859 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 000568FF 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 000569B6 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056B76 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056C36 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056D11 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056DA2 1 -- F8 -- -- -- --- Timing Clock 00056E0A 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056F14 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00056FF9 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 000570B9 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 00057169 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005869B 1 -- C0 1E -- 1 --- PC: Distortn Guitar 0005869C 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005AD21 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005BB43 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005BB73 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005BE75 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005BE76 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005CA6C 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0005D819 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0006C9C3 1 -- C0 00 -- 1 --- PC: Acc. Grand Piano 0006CC93 1 -- F8 -- -- -- --- Timing Clock 0006CC90 1 -- A0 00 00 1 C -1 Key Aftertouch 0006D70A 1 -- A0 00 00 1 C -1 Key Aftertouch 0006D8B7 1 -- F8 -- -- -- --- Timing Clock 0006D911 1 -- A0 00 00 1 C -1 Key Aftertouch 0006DAE0 1 -- A0 00 00 1 C -1 Key Aftertouch 0006DCCE 1 -- A0 00 00 1 C -1 Key Aftertouch

According to the AIN schematic all unused 4051's should be clamped to ground i.e. I'm using 2 4051 so I would clamp A2 and A3 to ground? Which ground? The ground on J5 or J7 or the core or case ground. Does this also mean I only need to connect from J5 (VS+VD+A0+A1) to core? in need of a clue, Blood

are encoders preferable? i'm guessing they are notched incrementably. thanks for yr help!

help!

i want to build a midi box to control my microkorg. i just want 16 pots and 8 buttons. am i correct in thinking i need the core module, din module, and ain module?