SED1330 and PIC 18F452

[drkidd22]

I have a SED1330 running a 320 x 240 LCD Display with module. The code I have runs somewhat OK, but I think there is a timing issue or I might be missing something. The problem is that the two lines I'm trying to display sometimes display and some times only half of a line is displayed.

 

[mneary]

The SED1330 is designed to operate from 8080/Z80/6800 bus timing. Since the I/O pins of the 18F452 aren't a "bus" you are obviously emulating the bus interface in code. Which interface have you selected? Look closely at that code to make sure that it is correct.

 

[drkidd22]

It's setup for the 6800 interface. It's working a little better now. I was resting/initializing the entire program over and over instead of having the write/send commands to the LCD in a while loop to constantly be writing to the display.