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thanks!! :D

Core Module and USB PIC Module,cross-connect. http://www.ucapps.de/mbhp/mbhp_core_v3.pdf IC2=6N138, R6=1.2K. http://www.ucapps.de/mbhp/mbhp_usb_pic18f4550.pdf IC2=6N138,R3=1.2K. My question ? Which retains? which does cancel? Thanks ??

??? ???????????Core Module??LTC???????USB????????????????????????OK?? ?????????USB PIC Module ? Core Module ????? Core Module?6N138 ??,??R6=1.2K ?????? USB PIC Module ?????6N138, ??R3=1.2K . ?2????????????5v????????????5v?????????????????5V???????PIC18F452?RX????R6=1.2K ?

My question found, with USB the PIC module, could not read in the LTC module contents. Another question ? USB PIC Module and Core Module cross-connect . Core Module 6N138 removes,but R6=1.2K needs to remove ??? USB PIC Module already had 6N138, as well as R3=1.2K .

:D?????????????????????????????? ?????????????????????????

????????????? ????????????????????????????????????? ??????MIDIbox64,???MIDIBOX LC? ????????????MIDIBOX 64???????????????????????????????MIDIBOX 64?????MIDI???LED?????????????????????????????LTC??????? ??MIDIBOX LC????????????????????????8????? ????32???????32?????????????????????????MIDIBOX 64?????MIDIBOX LC?????? ???????MIDIBOX 64??????????????????1?MIDIbox64?1?MIDIBOX LC?????????????????USB??? ??????USB?????PIC4550?????????MIDI?????????AN2131SC???????????? ??????

I already manufactured MIDIBOX64 and MIDIBOX LC, has the LTC module . Now the question is ? I need MIDIBOX LC logic the control button ?48buttons??Also needs MIDIBOX64 64 fader ?Changes again the LTC module the USB module . Ask how makes concrete should design, can logic control (button) and MIDIBOX64 (fader) also uses,Uses for to control the PC software. PS: I existing need to control the PC software, the MIDIBOX64 button use has the question, but the MIDIBOX LC button does not have the question, but fader actually has 8 USB module I have manufacture PIC18F4550, probably has the question, wants to use AN2131SC, did not know that has the question?

My English expression is not good . I have good midibox64, uses LTC the module ,the use is very good. Now I increased USB PIC Module(PIC18F4550),connects above Core Module J11,the work is not normal. The midibox64 transmission data, PC cannot receive the data. I already took down MX232. Is what question ??

USB PIC MODULE (18F4550) J2 =====>>>Connection Core Module J11 I open MIDI-OX or MIOSStudio ,Might find USB Audio Device ,Now on MIDI-OX or MIOSStudio transmits the data, MIDIBOX64 may receive. midibox64 presses down the button or the potentiometer ,Cannot receive in MIDI-OX or MIOSStudio . I have LTC Module on PCB,Saw to LED when the data transfer will flash ,Other LED was not bright . If from the RS232 connection, can be normal Ask where isn't right?