Starting Zilog 85230 Device Driver


I am trying to start zilog device driver (devc-serzscc ) on QNX. When I tried to start the application program for a loop back method using this driver, the system gets hanged. I used the following command to start this driver,

devc-serzscc -b9600 -c15974400l/16 -D4000 -e 0x3f8 ,4 &

i have already added the following line in my build file to create .ifs file for my system
[type=link] /dev/console = /dev/ser1

can anybody tell me if i am using the right clock rate for this driver?
how i use this driver for communicating with serial port?