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Trigger outs
As some of you may know I'm thinking about an addon PCB to add trigger outs to the LXR.
At the moment I think of something like:
- 7 trigger outs (5V), one for each seq. track
- 1 or 2 clock outputs with adjustable prescaler
- 1 Start/Reset out (high when stopped, low when running)
Maybe also
- 1 clock input to sync to analog gear
- start/reset input
what do you think? something missing?
At the moment I think of something like:
- 7 trigger outs (5V), one for each seq. track
- 1 or 2 clock outputs with adjustable prescaler
- 1 Start/Reset out (high when stopped, low when running)
Maybe also
- 1 clock input to sync to analog gear
- start/reset input
what do you think? something missing?
Comments
My modular (and related knowledge) is still very small, but i think thats all one would need.
This is basically gonna be some 74hc156 and 595 that connect to the expansion header on the serial bus, right?
- It will stay as an addon, since the frontpanel PCB is already VERY crowded.
I doubt it is usefull for everybody. It was not before my first 6HU that I ever used the CV/Gate outs on my xoxbox.
- PCB only/kit - not decided yet. It will be a very small PCB, in the end it is just a buffered 3V3 -> 5V converter.
- price: no idea yet. I hope cheap! Hard to say without a designed PCB and good ol' fcd72 missing in schneiders laden
probably you will need to solder some cables.
Never wanted triggers in the first place, then came my eurorack, and now i neeeeed them! *G*
soldering cables is no problem.
i didn't know you got an eurorack.
looking forward to some sp modules
i'ts time i finish all the module pcbs i got in my stack.
+1 to all
What about some trigger status LEDs as an option?
Sooner or later we all end up on the modular path
Is s-trigger just an inverted v-trigger?
The description confuses me a little, on the one hand wikipedia says it is inverted, on the other hand it says s-trigger is a short circuit which in my book is something different than just making the line a logic zero.
http://en.wikipedia.org/wiki/CV/Gate#Gate
This would need some kind of step up transformer.
ok, so for s-trig you would need a transistor controlled by the v-trig.
http://www.synthdiy.com/files/2001/moog_trigger-convert.jpg
maybe if there is some spare space on the PCB
just a schematic and where it connects to & i will test it
The outputs will be switchable between V-Trig and S-Trig via jumpers.
Inputs will be V-Trig only.
number and type of IOs as above...
The pinout of the DIN sync differs too much from the midi out :-/
The only option would be to use the trigger extension IO board and add a special 3.5mm to DIN adapter cable.
I will test them today.
Then only the matching standoffs and a custom backplate from frank is missing.
the 3rd drill hole is missaligned with the enclosure.
note to self: always print out the designs first!
besides that everything seems fine so far.
I could re-drill the hole on the correct position for this early batch of PCBs, but it won't look nice.
maybe for some discount anyone would be interested in those 'ugly' boards?