Rowan Posted July 25, 2006 Report Share Posted July 25, 2006 Hi,I would like to know if R12 is necessary on the core if no IIC devices are being used. The reason I ask is that I have one of Smash's R-4c boards and I noticed that there is now a new revision (R-4d) which has R12 added. Maybe I'm fussy, but I like tidy PCB's and would rather not add it if I don't need to. ThanksRowan Quote Link to comment Share on other sites More sharing options...
TK. Posted July 25, 2006 Report Share Posted July 25, 2006 Hi Rowan,it's not required so long you are not using any MBHP_IIC* moduleBest Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
stryd_one Posted July 26, 2006 Report Share Posted July 26, 2006 Does this mean the R4C board will not work with IIC modules unless R12 is added? Quote Link to comment Share on other sites More sharing options...
smashtv Posted July 27, 2006 Report Share Posted July 27, 2006 Does this mean the R4C board will not work with IIC modules unless R12 is added?R12 is just a pull-up resistor, R4C+IIC -might- work without it (many variables come into play here like cabling, what exactly it's connected to, how clean your power supply is, etc.) but it's a good idea to add it to avoid issues if cabling to anything IIC. BestSmash Quote Link to comment Share on other sites More sharing options...
stryd_one Posted July 27, 2006 Report Share Posted July 27, 2006 Oh it's one of those things... I'll put that in my "don't bother until something goes wrong" bag ;) Quote Link to comment Share on other sites More sharing options...
Rowan Posted July 28, 2006 Author Report Share Posted July 28, 2006 Thanks for the respones Thorsten. That clears thing up nicelyThanks for the discription Smash (by the way your boards were a plesure to stuff). I've got an idea for a small modification to the layout of the DIN and DOUT boards which could cut down wiring in some situations.What I sugget is to change the spacing BETWEEN J3 -J6 of the DIN and DOUT (I guess this would be useful on the AIN too) to a multiple of 0.1".The reason I suggest this is it would allow the DIN/DOUT/AIN to be used as "Plug-in" Modules/daughter boards for strip/matrix board that have DIL Sockets mounted on them. I could mount all my buttons, pots, encoders etc on Strip board, then mount some DIL sockets spaced the same distance apart as J3 - J6 on the other side of the board and plug the module directly on to the board which has the controls on it.CheersRowan Quote Link to comment Share on other sites More sharing options...
TK. Posted July 28, 2006 Report Share Posted July 28, 2006 Nice Idea, I've added it to this page: http://www.midibox.org/dokuwiki/doku.php?id=layout_improvements, so that it doesn't get lostBest Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
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