2010/1/20 Ruben J=F6nsson <ruben@pp.sbbs.se>

> Make sure that you don't have any interrupts that interfere with the LCD
> writing. Especially if the interrupt uses bits in the same port that is
> used by
> the LCD. Also make sure that you don't have any read modify write (RMW)
> problems.
>
>
Maybe there's a problem here.

I use RB5, RB6, RB7 for E, RW, RS.

I'm using some of the lower bits in port B for other things.

All of my reads and writes to port B are in the form:-

PORTBbits.RB2 =3D 1;

I'm not sure if the compiler generates "safe" code for that, or not.

I guess in a future hardware revision I should change ports that i'm using,
so I can get the LCD on it's own unique port. I think i'll need to change to
a 40 pin part to do that though, i'm running out of capacity on the 28 pin
parts.
-- =

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