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JANUS? 2020 Hand-Held Computer (4MB) - Intermec

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6. The Boot Loader menu appears.<br />

Boot Loader<br />

Reboot<br />

Password<br />

Dump<br />

Load<br />

Resume<br />

Storage<br />

Off<br />

NF BC Booting and Resetting the Reader<br />

<strong>2020</strong>U.085<br />

9<br />

The Boot Loader menu lists seven commands and displays status messages or<br />

checksum messages at the bottom of the screen. The commands are:<br />

Reboot This command lets you cold boot the reader. A cold boot clears<br />

conventional memory and destroys all buffered data. For help, see “Cold<br />

Booting the Reader” earlier in this chapter.<br />

Password This command lets you enable or disable a password that all users<br />

must enter to display the Boot Loader menu. For help, see “Limiting Access to<br />

Advanced Reader Commands” later in this chapter.<br />

Dump This command lets you transmit the lower 640K of memory out<br />

through COM1. You might use this feature when the reader is not functioning<br />

and you need to save the contents of conventional memory. For help, see<br />

“Dumping the Reader’s 640K Conventional Memory” later in this chapter.<br />

Load This command lets you load the reader’s flash memory from a host<br />

computer connected to a serial port. You may reload the default flash memory<br />

to correct an error condition or you may upgrade the reader’s software. For<br />

help, see “Loading Flash Memory” later in this chapter.<br />

Resume This command lets you exit the Boot Loader menu and resume<br />

operating as you were before you displayed the Boot Loader menu. For<br />

example, if the reader was executing an application, the application continues.<br />

If there is a bad checksum or the flash is corrupt, the reader cannot resume. For<br />

help, see “Powering Up or Booting the Reader” in Chapter 10.<br />

Storage This command lets you put the reader in Storage mode, which helps<br />

preserve the life of the bridge battery. All data stored in RAM is lost when you<br />

enter Storage mode. You should place the reader in Storage mode if you are<br />

not going to use it for one week or more. For help, see “Using Storage Mode to<br />

Preserve the Bridge Battery” later in this chapter.<br />

Off This command lets you exit the Boot Loader menu and put the reader into<br />

Suspend mode. When you press to turn the reader back on, the reader<br />

resumes normal operation. For help, see “Turning the Reader On and Off” in<br />

Chapter 1.<br />

9-7

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