> > Maybe you could work with the start/stop bits to > simulate a 9 bit > >transmision. > > > > > Mmm, would you please tell me how? Make that using the parity bit. Just reprogram the UART before sending a byte, to generate the correct parity bit as 9th. Note: must probably wait until the byte is fully transmissted before re-programming the parity? Will be quite slow on NT-derived windoze.. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu