Wil, make sure you are in the 2-line mode and note the display address
for a 40 x 2 display. After the first 3 0x30's send 0x38. The address map
is (decimal):

      Line 1:  0 -> 39
      Line 2: 64 -> 103

   - Tom

At 06:55 PM 1/19/98 -0800, you wrote:
>Hi
>
>I have several curcuits working with a pic 16c84 driving 1x16 generic lcd
>displays. The larger displays have been a problem for me. I would
>appreciate someone stepping me through the init code for the optrex
>dmc40218. I understand that there is a code of 0x30 sent three times and
>all of the display on cursor on/off stuff but I am still not getting
>results. I may have things in the wrong order or may be missing something
>entirely. My circuit is 8 bit ( not 4 like most of the lit on the net).
>Thanks for your help!
>
>Wil Reeder
>teachtech@bc.sympatico.ca
>Vancouver, Canada
>
>