"Wilba SEQ 4 PCB" and LPC17 connection problems and missing the J5C LPC17

[msc175]

Hi!

I'm in the construction of a midiboxsequencer.

specifications:

LPC17, Wilba-Frontpannel, 3x MIDI IN / OU, 4 x MIDI OUT, OUT CV 8x, 8x GATE OUT, ​​MIDI SYNC

I have a 100% Wilba compatible frontpanel-layout and a second PCB with the other functional groups and the LPC17!

Unfortunately, I've noticed in reviewing the documents, some inconsistencies, or undocumented facts!

Since I have not found any answers and prevent the final completion of the PCBs I'm hoping for answers!

Problem 1:

The connection between J8 / 9 to the Wilba-frontpanel know for discrepancies.

The 32bit cores have separate connections RC (RC1 and RC2). The front panel has only one Wilba (RC)!

How should I connect the Wilba matrix??

My PCB has separate RC.

Problem 2:

I need 8x GATE, MIDI sync and MIDI I / O 3 Unfortunately, in which no LCP17 A8-A11 (J5C) available!

MIDI3 is connected according to wiring diagram A6/A7!

But where MIDI SYNC is connected?

And where do I connect the GATE 8x?

I thought about a DOUT register! Best described as the first register in the chain.

Is that possible?

I hope you can help me ....

Greetings Dirk

[TK.]

Hi Dirk,

The connection between J8 / 9 to the Wilba-frontpanel know for discrepancies.

The 32bit cores have separate connections RC (RC1 and RC2). The front panel has only one Wilba (RC)!

How should I connect the Wilba matrix??

My PCB has separate RC.

RC1 and RC2 output the same signal for compatibility reasons.

You can use any pin

Problem 2:

I need 8x GATE, MIDI sync and MIDI I / O 3 Unfortunately, in which no LCP17 A8-A11 (J5C) available!

MIDI3 is connected according to wiring diagram A6/A7!

But where MIDI SYNC is connected?

This isn't implemented for the MBHP_CORE_LPC17 variant yet, but I'm planning to make it available at J28 (the "Audio DAC" port)

I will release a new version today

And where do I connect the GATE 8x?

J5A and J5B

Please note: for all gate/clock signals it's recommended to use a 74HCT541 as 3.3V -> 5V level shifter

Best Regards, Thorsten.