Be sure you are waiting the required amount of time between instruction
writes to the display.

  I had trouble at first writing to displays in 4 bit mode and got
results like you see.  After I checked my code I found I wasn't quite
waiting long enough between writes.  Doubling the delays (for overkill)
worked!  I also found that the delays mentioned in spec sheets are only
approximate.  Increase yours and see if it helps.

Dave


At 02:08 PM 12/17/96 -0500, you wrote:
>Hello
> I am having trouble initializing my 2x8 optrex lcd w/hd44780a
>controller
>in 4 bit mode.I have tried everything I could glean from the FAQ's but
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( Freq selectors for FME/FMX/FM25, DTMF decoders. Email dschmidt@rain.org )
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