Specifications

CARROLL TOUCH Appendix D - CTKERN Function Reference
Touch System Programmer’s Guide D-7
GetCommunicationParameters (22)
Description
This function returns the communication parameters that the driver
uses to communicate with the touch system. The application program
should read the BH (driver type) register to determine how to interpret
the remaining registers.
Call with
AL = 22 (function number).
Returns
BH = Driver type.
0 = SBC driver.
1 = HBC driver.
2 = RS-232 driver.
If BH = 0 (SBC) or 1 (HBC), the additional returns are:
BL = Interrupt number.
CX = I/O address.
If BH = 2 (RS-232), the additional returns are:
BL = Comm port.
1 = COM1.
2 = COM2.
CH = Parity.
0 = None.
1 = Odd.
2 = Even.
CL = Baud rate.
0 = 300.
1 = 600.
2 = 1200.
3 = 2400.
4 = 4800.
5 = 9600.