Справочник Пользователя для Apple DualCam 640
Configuring the PC serial ports
Your DOS-compatible Macintosh supports two serial ports, COM1 and
COM2. You can assign these ports to an unused Macintosh printer port or
modem port, to a text file for later processing, or to a setting of None.
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COM2. You can assign these ports to an unused Macintosh printer port or
modem port, to a text file for later processing, or to a setting of None.
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To assign a Macintosh serial port to a COM port, make a selection in the COM port’s
pop-up menu in the PC setup control panel.
pop-up menu in the PC setup control panel.
When you assign a port to a text file, you specify a name and location for the
file in a dialog box that appears. Macintosh serial ports already in use appear
dimmed in the menu. (The printer port may be in use by AppleTalk, which
may be used for a network or LaserWriter connection; the modem port may
be in use by communications or fax software.) Changes to these selections
take place immediately.
file in a dialog box that appears. Macintosh serial ports already in use appear
dimmed in the menu. (The printer port may be in use by AppleTalk, which
may be used for a network or LaserWriter connection; the modem port may
be in use by communications or fax software.) Changes to these selections
take place immediately.
Assigned ports may not be available to the Mac OS: Mac OS programs may no
longer be able to access ports that you’ve assigned to DOS. Allocate these
ports only when they’re needed, and deallocate them when they’re no longer
required by your DOS programs. (You won’t have to restart the computer to
have the changes take effect.)
longer be able to access ports that you’ve assigned to DOS. Allocate these
ports only when they’re needed, and deallocate them when they’re no longer
required by your DOS programs. (You won’t have to restart the computer to
have the changes take effect.)
The maximum baud rate supported by the DOS-compatible Macintosh when
a COM port is assigned to a Macintosh serial port is 19,200 bits per second
(bps). However, when the MODE command is issued in DOS and the serial
port is set at 19,200 baud, the incorrect message “Function not supported on
this computer” is displayed. This occurs because DOS is looking for specific
hardware (a PC UART) that is not emulated by the DOS-compatible
Macintosh. The Macintosh actually does support 19,200 baud, and can be set
by a number of communications application programs.
a COM port is assigned to a Macintosh serial port is 19,200 bits per second
(bps). However, when the MODE command is issued in DOS and the serial
port is set at 19,200 baud, the incorrect message “Function not supported on
this computer” is displayed. This occurs because DOS is looking for specific
hardware (a PC UART) that is not emulated by the DOS-compatible
Macintosh. The Macintosh actually does support 19,200 baud, and can be set
by a number of communications application programs.
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Configuring the PC Environment