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Hello
I have 52 input Megadrum and I'm using SD 2.0 with this module. I have a strange problem. I'm using SD 2.0 with this module. When pres hihat pedal and hit to the hihat cymbal at same time, ı'm hearing unplug and plug sound from computer and all megadrum USB midi driver disappear and reappear at the device manager. Because of that I'm loosing all midi connectivity with SD2.0. My Hihat pedal FSR based diy project. And connected to megadrum without resistor. Because high and low levels at acceptable interval (low 270 and high 900). When I unplug pedal or cymbal connection from megadrum I don't faced whit this problem, pedal working correctly and I'm getting chick and splash sounds. Also when I plug Pedal with cymbal everything working during 5-6 seconds and after my problem is happening. Hihat cymbal 2 zone diy piezo/switch project and I can use as a crash without any problem. Hihat pedal is plugged at first physical input and hihat cymbal plugged third physical input. Also kick plugged second input and snare is plugged fourth input.

My operating system windows 7. My firmware version for MD module is 20150411 and for MDM 20150614. I added MDM screenshot. MDM talking with module via midin2 and midiout2. Megadrum is sending midi note to the MIDIOX or SD2.0 via midiin. If you want you can check my configuration from this screenshot. You can ignore 3rd zone settings. It has remained from my some tests. Problem is also happening when set zero these settings

I hope it's not a hardware problem and there is a trick with some configuration changes.

Thank you in advance.

1. Do you hear the sound of 'USB midi driver disappear and reappear at the device manager' when you press HiHat pedal and hit the HiHat cymbal without running MDM/SD2 ?
2. What happens if you move the HiHat cymbal to a different input (and also set 'HiHat input' in HaHat pedal settings to the same input number) ?
3. What happens if you use another pad/cymbal instead of this DIY HiHat cymbal?

Btw, all settings on the screenshot are in Blue which means they are not in sync with MegaDrum.

Helo Dmitri
Many thanks for quick answer.
Yes configuration seems not synced because module is loosing all midi connection also i get sync error from mdm and i have to restart the mdm when this issue happened. But i tried to rstart the module at last problem and i gues i didn't set restart fron last configuration option.
I didn't try to change hihat pedal input but i changed hihat cymbal input and nothing changed. Also yes i heard unplug and plug sound right after.

I have to make a correction. I'm trying right now. I synced all configuration with module and i closed MDM issue not happened last 5 minutes. Also issut not replicated when i run open MDM interface after sync. I will try 1 or 2 days and I will inform you.

Many thanks again

semihkavala wrote:Helo Dmitri
Many thanks for quick answer.
Yes configuration seems not synced because module is loosing all midi connection also i get sync error from mdm and i have to restart the mdm when this issue happened.

You said the disconnect/re-connect issue happens only after you press HiHat pedal and hit the HiHat cymbal. Correct? The take the settings before you press the pedal and hit the cymbal.

But i tried to rstart the module at last problem and i gues i didn't set restart fron last configuration option.

I didn't get this. Did you boot MegaDrum with default settings (AutoLoadConf set to No)? If so, does the issue happen with the default settings when you press the pedal and hit the cymbal without MDM and SD2 running?

I didn't try to change hihat pedal input but i changed hihat cymbal input and nothing changed. Also yes i heard unplug and plug sound right after.

I did not suggest to change HiHat pedal input. I suggested:

dmitri wrote:2. What happens if you move the HiHat cymbal to a different input (and also set 'HiHat input' in HaHat pedal settings to the same input number) ?

Did you do this? What happend and when?

3. What happens if you use another pad/cymbal instead of this DIY HiHat cymbal?

Did you do this? What happened and when?

xendhridea wrote:I have to make a correction. I'm trying right now. I synced all configuration with module and i closed MDM issue not happened last 5 minutes. Also issut not replicated when i run open MDM interface after sync. I will try 1 or 2 days and I will inform you.

Many thanks again

I have a susspicion you are creating a MIDI loop somewhere (most likely with MIDI-OX) which causes MIDI data received from MegaDrum to be sent back to it - this will lead to MegaDrum instability and even restarts.

Hello Dmitri
I'm familiiar the loops from data networking literature. For loop creation we should connect two ports that located at same device to together. So what is the reasons of midi loop and how can i avoid

You just have to make sure that you don't send MIDI data received from MegaDrum back to it. As I said, I suspect you may unintentially do it in MIDI-OX. MIDI-OX as a tool is quite useful and powerful but without proper configuration (MIDI ports routing) it will easily create MIDI loops.