mb944 Posted March 5, 2005 Report Share Posted March 5, 2005 Hi there!I would like to make several small midiboxes for differant purposesthat I can Stack and shuffle together according to the project I work on.it would be cool to connect a differant physical controller for each VST I load in the host.Anyway, thats the concept, here's the question:It would be a waste to make a brand new core for each module so,could I have say a mother midibox with external 5 PIN DIN and AIN connectors?If so, could I go as far as scattering SHIFT REGISTERS over say 5 meters of cable or will I loose the clock?Thanks for any ideas or comments ;D Quote Link to comment Share on other sites More sharing options...
doc Posted March 5, 2005 Report Share Posted March 5, 2005 Hi mb944,I can not recomment such long cables !I once tested connection length from the DIN to the core.Result: Everthing larger than 2 m causes random midi messages (I used flat cable).Perhaps you have to use a shielded cable ?I think 1 m between the shift registers should be no problem - test it !I had the same problem. Now I use seperate Cores for each VST ;)greets Doc Quote Link to comment Share on other sites More sharing options...
Wise Posted March 6, 2005 Report Share Posted March 6, 2005 One option to run digital (or analog) signals over a long cables is to use a differential transmission. You could try to implement a RS-422 communication between the core and the DIN. And then chain to the next DIN in the same way. RS-422 is digital, so this rules out the AIN, but if you can live with encoders is should be doable...Speed should not be a problem with this method.Check out this http://www.epanorama.net/links/tele_interface.html#rs422 Another option is to build a couple of current loop transievers.http://www.epanorama.net/links/tele_interface.html#currentloopThis is just my first thougts, have't tryed them myself. Don't know if this current method could handle the dataspeed from the core...Sorry for my bad english..../Henrik Quote Link to comment Share on other sites More sharing options...
mb944 Posted March 6, 2005 Author Report Share Posted March 6, 2005 hi!thanks for the suggestions!the easiest solution seems to me to just have the din and ain pins "pluggable" instead of the chips ok, each button/pot/knob will need an individual wire, but I only had mini boxes in mindthanks again for the supportAlex Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.