Little Board™/486e Technical Manual

SETUP Page 3—Serial Console Configuration

The ROM BIOS includes a unique set of features that allow full access to the system at any time over standard RS-232 serial ports. An embedded system can take advantage of these remote access capabilities using the serial console functions in the following ways:

!Serial console—Use Serial 1 or Serial 2 as a console. Use a serial terminal to replace the standard video monitor and keyboard.

!Serial boot loader—Boot from a serial port in much the same manner as booting from a local hard disk or from a network. This feature is enabled or disabled with the Serial Boot Loader option on Page 2 of SETUP.

!Serial programming—Automatically update system software, through a serial port. This feature permits replacing code in a FLASH device installed in the byte-wide socket.

For more information about these serial console functions, see Serial Console Features, under Serial Ports.

Figure 2–15 shows the options you can set for the serial console. Since DOS normally initializes the serial ports during boot, you have the option to remove the serial console port from DOS’s COM port table. By doing this, the values you set on SETUP screen 4 remain after you boot DOS.

Extended Serial Console Configuration

Console Output Device

Video

Console Input Device

Keyboard

Serial

Console Output Setup

 

Data

Length

 

Stop

Bits

 

Parity

 

Baud

.........................

 

Delete from Com Port Table...

 

Console Output Handshake

 

Serial

Console Input Setup

 

Date

Length

 

Stop

Bits

 

Parity.......................

Baud.........................

Delete from Com Port Table...

Figure 2–15. SETUP Page 3

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Ampro Corporation 486E manual Setup Page 3-Serial Console Configuration, Extended Serial Console Configuration