Hi Fausto,
Take a look at AN2637 it may provide you with a start.
Or taking a step back and thinking...
Why are you using a 232 LCD? Most of them are a parallel one with a serialiser and 232 converter stuck on. Why not just use a parallel one in maybe 4-bit mode. A couple of more pins but less fooling around.
The only reason you use a serial one is because its easier, but its not easier if you don't have a serial port to plug it into!
Regards Peg
Message Edited by peg on 05-18-200609:01 PM