Hi,

Memory mapping should work OK - it does on the Atmel STK200 (?) evaluation board (there's a sketch of this buried somewhere on my bench!) AND they read back the busy signal! If you don't want to check the busy signal, use a timer interrupt to copy the characters from a RAM buffer to the display - at least this way your program can get on with other stuff during the delay. Just count a few extra cycles after sending the control codes (count a few more for the home code, I think). Watch the signal timing! (set-up times & so on).

Good luck,

RWK

BTW what do LED & LCD mean, then look at the subject again ;-)