I am using an 8052 compatible and a graphic LCD (Powertip PG9832)
I cannot display data.
I can read and write instructions and have confirmed this, I can read and write data and have also confirmed this.
I have checked contrast etc. by using an instruction that turns all pixels on and off but data is not displayed even though I can read it back!

I have had correspondance with Powertip who have sent me sample code but this just confirmed that my code was correct (there code gives exactly the same result). They have also sent me a sample sch. which also confirms my sch.

Does anybody have any clues????