Emerson MVME55006E MOTLoad Firmware, Implementation and Memory Requirements, MOTLoad Commands

MOTLoad Firmware

4

4.1Overview

This chapter describes the basic features of the MOTLoad firmware product, designed as the next generation initialization, debugger and diagnostic tool for high-performance embedded board products using state-of-the-art system memory controllers and bridge chips, such as the GT-64260B.

In addition to an overview of the product, this chapter includes a list of standard MOTLoad commands and the default VME settings that are changeable by the user, as allowed by the firmware.

The MOTLoad firmware package serves as a board power-up and initialization package, as well as a vehicle from which user applications can be booted. A secondary function of the MOTLoad firmware is to serve in some respects as a test suite providing individual tests for certain devices.

MOTLoad is controlled through an easy-to-use, UNIX-like, command line interface. The MOTLoad software package is similar to many end-user applications designed for the embedded market, such as the real time operating systems currently available.

Refer to the MOTLoad Firmware Package User’s Manual, listed in Appendix C, Related Documentation, for more details.

4.2Implementation and Memory Requirements

The implementation of MOTLoad and its memory requirements are product specific. The MVME5500 single-board computer (SBC) is offered with a wide range of memory (for example, DRAM, external cache, Flash). Typically, the smallest amount of on-board DRAM that a Emerson SBC has is 32MB. Each supported Emerson product line has its own unique MOTLoad binary image(s). Currently the largest MOTLoad compressed image is less than 1MB in size.

4.3MOTLoad Commands

MOTLoad supports two types of commands (applications): utilities and tests. Both types of commands are invoked from the MOTLoad command line in a similar fashion. Beyond that, MOTLoad utilities and MOTLoad tests are distinctly different.

MVME55006E Single-Board Computer Installation and Use (6806800A37D) 53