I'am working with at91sam7x256 and in my program the usart interrupt dosen't work correctly ! I communicatinon with atmel but it isn't fix yet.
thise is my program...pleas help me
www.4shared.com/.../usart16__2_.html
my mail :salehi.elc@gmail.com
I guess controlling an LCD is possible without interrupts, but the result cannot be really satisfactory!
Depends on the hardware. I'm using an LPC3250. The LCD controller is not using interrupts. Simply a case of setting up the hardware and letting it do it's own thing. It works a treat.
Not sure about the at91sam7x256 that Tweedle Dum and Tweedle Dee are using here, but it surprises me that they can get an LCD controller going, but struggle with a USART.
"...also we wrote a program for timer and used the interrupt mode but did not work correctly too..."
So there's either another buge in the compiler or you need to do some serious reading up on interrupts and how to use them.