MODE

Configures system devices.

Syntax for serial port:

MODE COMm[:] [BAUD=b] [PARITY=p] [DATA=d] [STOP=s] [TO=ON | TO=OFF] [XON=ON | XON=OFF] [ODSR=ON | ODSR=OFF] [OCTS=ON | OCTS=OFF] [DTR=ON | DTR=OFF | DTR=HS] [RTS=ON | RTS=OFF | RTS=HS | RTS=TG] [IDSR=ON | IDSR=OFF]

Where:

  • COMm - Specifies the device you want to configure, where m is the number associated with the device.
  • BAUD=b - Specifies the baud (number), which is the transmission speed in bits per second. Some valid values for b are:
    • 11 - 110 bauds.
    • 15 - 150 bauds.
    • 30 - 300 bauds.
    • 60 - 600 bauds.
    • 12 - 1200 bauds.
    • 24 - 2400 bauds.
    • 48 - 4800 bauds.
    • 96 - 9600 bauds.
    • 19 - 19200 bauds.
  • PARITY=p - Specifies how to use the parity bit for error detection. Valid values for p are:
    • N - No parity bit (none).
    • E - Even (default).
    • O - Odd.
    • M - Set to 1 (mark parity).
    • S - Set to 0 (space parity).
    Mark parity and space parity are only supported on some low-power embedded devices.
  • DATA=d - Specifies the data bits in a character. Valid values for d are 5 through 8. The default is 7 (ASCII). Only some devices support values lower than 7.
  • STOP=s - Specifies the stop bits of a character. Valid values for s are 1, 1.5, and 2. The default value depends on the baud: if the baud is 110, then the default value is 2, otherwise it is 1.
  • TO - Specifies that the indefinite timeout is set to ON or OFF. If enabled, this option waits indefinitely for a response. By default, this option is disabled.
  • XON - Specifies whether the XON/XOFF protocol is set to ON or OFF.
  • ODSR - Specifies that the output Data Set Ready (DSR) synchronization for handshaking is set to ON or OFF.
  • OCTS - Specifies that output CTS (Clear to Send) synchronization for handshaking is set to ON or OFF.
  • DTR - Specifies that the Data Terminal Ready (DTR) circuit is set to ON, OFF, or HS. Enabling this option will return a continuous signal if the device is ready to exchange data. HS enables handshake signals.
  • RTS - Specifies that the Request to Send (RTS) circuit is set to ON, OFF, HS, or TG. Enabling this option will return a continuous signal if the device is ready to exchange data. HS enables the handshake signals. TG allows you to toggle the ready state.
  • IDSR - Specifies that the input DSR sensitivity for handshaking is set to ON or OFF.

Without specifying additional parameters, displays the status of the COMm device.

Examples:

1. Display the status of the device COM1:

mode com1:

 

2. Change the baud rate to 600, the data bit to 6, the stop bit to 2, enable the timeout and disable the DTR circuit of the COM1 device:

mode com1: baud=60 data=6 stop=2 to=on dtr=off

 

Syntax for device status:

MODE [device] [/STATUS]

Where:

  • device - Specifies the device.
  • /STATUS - Displays the status of the specified device (optional).

Even without the /STATUS parameter, it displays the status of the specified device.

Example: Display the status of the CON device:

mode con /status

or:

mode con

 

Syntax for print redirection:

MODE LPTn[:]=COMm[:]

Where:

  • LPTn - Specifies the LPT device (identified by a n number).
  • COMm - Specifies the COM device (identified with an m number), that is, the printer device to which to redirect the parallel port.

Example: Redirect the LPT1 device to the COM1 device:

mode lpt1:=com1:

 

Syntax for code page selection (see CHCPCHCP):

MODE CON[:] CP SELECT=xxx

Where:

  • xxx - Specifies the code page to activate.

Example: Activate code table for Turkish:

mode con: cp select=857

 

Syntax for code page status:

MODE CON[:] CP [/STATUS]

Where:

  • /STATUS - Displays the status of the active code page.

Even without the /STATUS parameter, displays the status of the active code page.

Example: Display the status of the active code table:

mode con: cp /status

or:

mode con: cp

 

Syntax for view mode:

MODE CON[:] [COLS=c] [LINES=n]

Where:

  • COLS=c - Specifies the number of columns (default: 80). Other standard values are 40 and 135.
  • LINES=n - Specifies the number of rows (default: 25). Other standard value is 50.

Example: Change the width of the current command prompt to 50 rows and 40 columns:

mode con: cols=40 lines=50

 

Syntax for keyboard settings:

MODE CON[:] [RATE=r DELAY=d]

Where:

  • RATE=r - Specifies the character repetition rate (in number of characters per second) from 1 to 32. Default values are 20 or 21.
  • DELAY=d - Specifies the delay of the repeat from the first to the second character (in quarters of a second) from 1 to 4. The default value is 2 (half a second).

Example: Change the repeat rate to 32 characters per second and the delay to 3 quarters of a second:

mode con: rate=32 delay=3

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