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8 startup sequence, Motload firmware – Artesyn MVME4100ET Single Board Computer Installation and Use (June 2014) User Manual

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MOTLoad Firmware

MVME4100ET Single Board Computer Installation and Use (6806800K76F)

109

The scan is performed downwards beginning at the location of the first possible alternate
image and searches first for POST, then USER, and finally Alternate MOTLoad images. In the
case of multiple images of the same type, control is passed to the first image encountered in
the scan.

Safe Start, whether invoked by hitting ESC on the console within the first five seconds following
power-on reset or by setting the Safe Start jumper, interrupts the scan process. The user may
then display the available boot images and select the desired image. The feature is provided to
enable recovery in cases when the programmed Alternate Boot Image is no longer desired. The
following output is an example of an interactive Safe Start:

ABCDEInteractive Boot Mode Entered

boot> ?

Interactive boot commands:

'd':show directory of alternate boot images

'c':continue with normal startup

'q':quit without executing any alternate boot image

'r [address]':execute specified (or default) alternate image

'p [address]':execute specified (or default) POST image

'?':this help screen

'h':this help screen

boot> d

Addr FFE00000 Size 00100000 Flags 00000003 Name: MOTLoad

Addr FFD00000 Size 00100000 Flags 00000003 Name: MOTLoad

boot> c

NOPQRSTUVabcdefghijk#lmn3opqrsstuvxyzaWXZ

Copyright Motorola Inc. 1999-2004, All Rights Reserved

MOTLoad RTOS Version 2.0, PAL Version 0.b EA02

...

MVME4100>

6.8

Startup Sequence

The firmware startup sequence following reset of MOTLoad is to:

Initialize cache, MMU, FPU, and other CPU internal items

Initialize the memory controller