Hi,

I'm currently working with a 2x16 display and I have opted to not read
the display and simply wait the maximum time (The application is not
time critical, so I save one IO). But just to check: You should not read
the busy flag between the two 4 bit operations, it is only valid after
the whole operation is completed.

I have the Hitachi LCD display modules data book here with me and it
sucks!!  The translation is deplorable plus its full of errors.  They
should really consider a better translator.

Niki