SerRTS

Description: This statement sets or clears the RTS line on a serial communication port.

Returns: Nothing

Usage: Script or Steady State

Format: SerRTS(Port, Level)

Parameters: Port { numeric } { required } { no default: }

Any numeric expression for the serial port number (opened with a ComPort function) or serial stream value (returned from a SerialStream function).

Level { Boolean } { required } { no default: }

True if the RTS line is to be turned on or false if the RTS line is to be turned off.

Comments: The corresponding ComPort statement must have the RTS parameter set to 2 or 3.

Example:

RTS = 0;

...

ComPort(2 { COM2: },

1024 { Buffer 1024 bytes of received data },

1024 { Buffer 1024 bytes of transmitted data },

9600 { Baud rate },

8, 1 { Data bits/byte, stop bits/byte },

0 { No parity bit },

3 { RTS may be controlled by SerRTS function },

0, 0, 0 { Obsolete parameters },

3 { Control: DTR On, CTS control enabled },

0, 0, 0, 0, 0, 0, 0, 0, 0 { Obsolete parameters });

If MatchKeys(2, "R");

[

RTS = 1 - RTS { Toggles RTS between 1 and 0 };

SerRTS(2, RTS);

]

Comport 2 is opened to allow the setting of the RTS line; the second statement then toggles the RTS line of serial port 2 on and off every time the letter R is pressed on the keyboard.