Code that worked with WINDSTAR LCD doesn't work with Newhaven LCD?

[jmgelba]

Are you using your display in 4 bit or 8 bit and if its 4 bit, have you tied the unused data pins to ground?

[jellis00]

Are you using your display in 4 bit or 8 bit and if its 4 bit, have you tied the unused data pins to ground?

I am using it in 4-bit and yes the unused data pins have to be grounded.

[jmgelba]

Thanks. Incidentally, the datasheet from Digikey for the part number I'm using is incorrect. It didnt show how to connect the RGB backilighting correctly. Good job I double checked by calling New Haven tech support. The pin out was wrong - missing 2 pins and swapping the backlight A and K. Yikes Digikey!!

[jellis00]

Thanks. Incidentally, the datasheet from Digikey for the part number I'm using is incorrect. It didnt show how to connect the RGB backilighting correctly. Good job I double checked by calling New Haven tech support. The pin out was wrong - missing 2 pins and swapping the backlight A and K. Yikes Digikey!!

Which LCD model of theirs are you using?
Did Newhaven warn you about incorrect data sheets on any other LCDs of theirs that are sold at DigiKey?
JE

[jmgelba]

NHD-0216K1Z-NSRGB-FBW

New Haven did not warn me of any other issues with data sheets. It looks like Digikey has an early version of the correct datasheet that contains errors, as the part number of the device and the datasheet do match. However the data sheet downloaded directly from New Haven is definitely different.

Take a look at page 3 of this link: http://www.newhavendisplay.com/specs...B_FBW-REV1.pdf

And take a look at pages 3 and 4 of this link: http://www.newhavendisplay.com/specs...-NSRGB-FBW.pdf

The second link is from Digikey and pages 3 and 4 clearly show 16 pins, not 18 per the actual device. The correct pinout is pins 16, 17 and 18 are the anodes for red, green and blue respectively. Pin 15 is the cathode pin.

The digikey link shows pin 15 as anode and pin 16 as cathode.