Please excuse my question but I'm new to embedded programming.

I'm working through a colleague's code as a learning exercise.

The code uses a serial interrupt to monitor SBUF. SCON has been configured as follows:

SCON = 11010000

ie 9 bit variable baud rate, mode 3

Can someone advise how I send 9 bits to SBUF from any Windows application eg Terminal? I need to do this as the code checks and processes the value of RB8. I realise I can force RB8 via the serial channel window but wondered how to do it by sending data alone.

I am using a Keil compiler/Uvision with the debugger serial port interfaced to COM1 on my PC. I can read/write data to COM2 as the ports are linked.

Thanks

Angus