CHANOPT Verb
Syntax
CHANOPT (channelno{,MODE=str})str
Description
For BBj-specific information, see CHANOPT Verb - BBj.
The CHANOPT verb is intended for advanced utilities developers and should not be used without a thorough understanding of the hardware system.
The CHANOPT verb controls features in a single file or device. In general, the CHANOPT verb can be used to modify parameters returned when the CHANOPT() function is used for devices. Currently, the CHANOPT verb is primarily for the control of serial port parameters.
Serial Port Modes
The following modes apply to serial communication ports. To disable a mode, add a minus sign (-) to the beginning.
| Mode | Description |
|---|---|
|
BAUD=val |
Sets the baud rate to val. |
|
WORD SIZE |
Sets the Word Size value to 5, 6, 7, or 8. |
|
PARITY |
Sets the Parity to E(ven), O(dd), M(ark), or N(one). |
|
STOP BITS |
Sets the Stop Bits to 1 or 2. |
|
XON |
Sends XON/XOFF. |
|
XOFF |
Responds to XON/XOFF. |
|
XON/XOFF |
Equivalent of sending XON and XOFF. |
|
XANY |
Responds to any character as XON. This mode does not work under Visual PRO/5. |
|
CLOCAL |
Uses modem control signals. This mode does not work under Visual PRO/5. |
|
CTS |
Uses CTS flow control. This mode is for Visual PRO/5 only. |
|
DSR |
Uses DSR flow control. This mode is for Visual PRO/5 only. |
For devices accepting MODE commands, the MODE=str option may be used to set or modify the channel's options.
Examples
The following example uses CHANOPT to set a modem's baud rate to 9600, with a Word Size of 8-Bits, No Parity, 1 Stop Bit, and XON/XOFF.
10 OPEN (1)"/dev/com1"
20 CHANOPT (1)"BAUD=9600,MODE=8N1,XON/XOFF"