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Question about wiring diagram incl with CrystalControl

ugly0900

New member
Hi,

Just bought my new Crystalfontz display and was taking a look at the HD44780 wiring guide included with the Crystal Contol software.

For wiring up the power, the guide says:

Solder a moderatly long piece of black wire from pin 24 of the DB25 connector.

But the wiring table shows ground being wired from pin 25.

And also, my parallel cable only has 18 wires, pins 18-24 aren't connected to anyting.

So should I wire ground to pin 24, or 25?

Also, the wiring guide for the 100 Ohm pot only describes a connection from pin 2 and pin 1(or 3). Do I just cut off the other pin?

Thanks for the info.

Mike
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ugly0900

New member
Okay, that sounds good. But my point was that pins 18 - 24 are not connected to anything. No wires, nothing. So I guess I need to wire ground to pin 25???
 

CF Mark

Administrator
ugly0900 said:
Okay, that sounds good. But my point was that pins 18 - 24 are not connected to anything. No wires, nothing. So I guess I need to wire ground to pin 25???
Ground can be connected to any of the 18-25 pins.
Choose one... its up to you, which ever one makes wiring the easiest.
And then the rest are unconnected.
 
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