frailn Posted July 30, 2008 Report Share Posted July 30, 2008 I'm ready to start connecting my LCD (2x40) to CORE for my first project and have been studying the mbhp_lcd_4bit.pdf and the docuwiki and searching around the forum to make sure I've got everything in my head before starting.The one thing I would like help on is connecting the 1k resistor from D3 to +5v. How are you guys doing this? Are you soldering one side of the resistor to D3, then running a jumper wire to anywhere on the CORE that has +5V from the other end of the resistor? I was thinking of jumping it over to the + side of C5, since I left that capacitor out of my CORE. Is there a better way of doing this?I understand what to do with D0, D1 and D2, but D3 has me stumped. Quote Link to comment Share on other sites More sharing options...
Narwhal Posted July 30, 2008 Report Share Posted July 30, 2008 The Vd (+5v) pin is right nearby.. perhaps that might be a good location. Quote Link to comment Share on other sites More sharing options...
frailn Posted July 30, 2008 Author Report Share Posted July 30, 2008 Yeah, that makes sense. Thanks for the suggestion! I was focusing on the Core connections other than the LCD and didn't take that into account. Sometimes you can't see the trees because of the forest... Quote Link to comment Share on other sites More sharing options...
Narwhal Posted July 30, 2008 Report Share Posted July 30, 2008 It just occurred to me that if you aren't making use of the CAN interface, I don't think you have to worry about the pull up resistor. You could always give it a test without it. Quote Link to comment Share on other sites More sharing options...
frailn Posted July 30, 2008 Author Report Share Posted July 30, 2008 Just found this on ucapps.deIt is possible to control up to 3 additional synths from the same frontpanel. The first core, which also manages the control surface, will act as a "master", and the remaining cores are handled as "slaves". Communication is realized over a fast CAN interface, this approach is called MBNet.So, I don't think I'll be using CAN. I'll leave that connection out and test it. I added CAN Interface to the WIKI - MIDIbox acronym page. Quote Link to comment Share on other sites More sharing options...
stryd_one Posted July 31, 2008 Report Share Posted July 31, 2008 If you search more, you'll also find the doco that says you should install the parts even if you don't use CAN. Quote Link to comment Share on other sites More sharing options...
nILS Posted August 9, 2008 Report Share Posted August 9, 2008 As striddie said, do install the parts no matter if you use the CAN interface or not. Make sure to disconnect D0-D3 or it might fry your LCD. Just get a good look at the board layout and trace the D3 pin - you can hook up the resistor anywhere on that track. Just pick a location that's close to any +5V pin and you're good to go. Quote Link to comment Share on other sites More sharing options...
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