Manual

100 - RedBoot Procedures

DeviceMaster LT User Guide: 2000586 Rev. B

Establishing a Serial Connection

Use the following procedure to set up a serial connection with a terminal server

program. You can use HyperTerminal (Windows) or Minicom (Linux) or optionally,

Test Terminal (WCom2), which can be accessed from PortVision DX using Tools >

Applications > Test Terminal (WCom2).

1. Connect a null-modem cable from an a

vailable COM port on your PC to Port 1

on the DeviceMaster LT.

Note: See

Connecting Serial Devices on Page 65, if you need to build a null-

modem cable.

2. Configure the terminal server program to the following values:

• Bits per second = 57600

• Data bits = 8

•Parity = None

• Stop bits = 1

• Flow control = None

Note: I

f you do not disable Bootloader from loading (Steps 3 through 5) within

the time-out period (default is fifteen seconds), an application will be

loaded from flash and started. If this happens, repeat Steps 3 through 5.

The #!DM command is the only case-sensiti

ve command and must be in

uppercase.

3. Reset the DeviceMaster LT

Note: Depending on the model, disconnect and reconnect the power cable

(external power supply and no power switch) or turn the power switch

on and then off (internal power supply).

4. Immediately type #!

DM and press Enter in the terminal program.

5. At the RedBoo

t> prompt, type dis, and press Enter.

6. Verify that loading has been disabled

7. You can use the appropriate procedure listed on Page 99 or use the RedBoot

Command Overview on Page 107 to perform the desired task.

#!DM

RedBoot>dis

Loading disabled