Monitor; Command-Line Features - Emerson Pm8560 User Manual

Section 11

Monitor

The Pm8560 monitor is based on the Embedded PowerPC Linux® Universal Boot (U-Boot)
Project program, available under the GNU General Public License (GPL). For instructions on
how to obtain the source code for this GPL program, visit http://www.emersonembedded-
computing.com/contact/postsalessupport.html, send an e-mail to support@arte-
syncp.com, or call Emerson at (800) 327-1251.
This chapter describes the monitor's basic features, operation, and configuration
sequences. This chapter also serves as a reference for the monitor commands and func-
tions.

COMMAND-LINE FEATURES

The Pm8560 monitor uses a command-line interface with the following features:
After entering a command, re-execute it simply by pressing the ENTER or RETURN key.
Auto-Repeat:
TFTP Boot: Use the TFTP protocol to load application images via Ethernet into the Pm8560's memory.
Auto-Boot: Store specific boot commands in the environment to be executed automatically after reset.
Flash Programming: Write application images into flash via the U-Boot command line. One megabyte at the
base of flash is reserved for the monitor.
At power-up or after a reset, the monitor runs diagnostics and reports the results in the
start-up display, see . During the power-up sequence, the monitor configures the
Fig. 11-1
board according to the environment variables (see page 11-23). If the configuration indi-
cates that autoboot is enabled, the monitor attempts to load the application from the spec-
ified device. If the monitor is not configured for autoboot or a failure occurs during power-
up, the monitor enters normal command-line mode.
11-1
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