Unitech MR350MKII Set host port protocol, 1C Set serial port flow control, Xon/Xoff, Cts/Rts

void TC_select_host(int status)

{

regs.h.ah = 0x1C;

regs.h.al = (unsigned char)status; regs.h.bh = 0; int86(0x21,®s,®s);

	}
1C	Set host port protocol
	Entry Parameters:	AH = 1C
		BH = 1
		AL = 2	; Multi-point (default)
		3	; None protocol

Returned Valued: None void TC_protocol(int status)

{

regs.h.ah = 0x1C;

regs.h.al = (unsigned char)status; regs.h.bh = 1; int86(0x21,®s,®s);

}

1C Set serial port flow control

The system provides three handshaking mode for serial port: XON/XOFF, CTR/RTS and none. The system default flow control for serial port is ? ONE”. The CTS/RTS is only available while the RS-232 is designated to serial port.

Entry Parameters:	AH = 1C
	BH = 2
	AL = 0	; None
	1	; XON/XOFF
	2	; CTS/RTS
Returned Value:	None

??NOTE:

If you want to control the hand shaking flow of serial port, you must set the flow control as “NONE”.

void TC_flow_ctrl(int status)

{

regs.h.ah = 0x1C;

regs.h.al = (unsigned char)status; regs.h.bh = 2; int86(0x21,®s,®s);

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