Memory maps, Rebuilding redboot, Superh/sh3(sh7708) hitachi edk7708 – Comtrol eCos User Manual

Page 261: Overview, Initial installation method

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Chapter 5. Installation and Testing

Memory Maps

Memory Maps RedBoot sets up the following memory map on the MBX board.

Physical Address Range Description

----------------------- -----------

0x00000000 - 0x003fffff DRAM

0xfa100000 - 0xfa100003 LEDs

0xfe000000 - 0xfe07ffff flash (AMD29F040B)

0xff000000 - 0xff0fffff MPC registers

Rebuilding RedBoot

These shell variables provide the platform-specific information needed for building RedBoot according to the
procedure described in

Chapter 3

:

export TARGET=mbx

export ARCH_DIR=powerpc

export PLATFORM_DIR=mbx

The names of configuration files are listed above with the description of the associated modes.

SuperH/SH3(SH7708) Hitachi EDK7708

Overview

RedBoot uses the serial port. The default serial port settings are 38400,8,N,1.

Management of onboard flash is also supported.

The following RedBoot configurations are supported:

Configuration

Mode

Description

File

ROM

[ROM]

RedBoot running from the
board’s flash boot sector.

redboot_ROM.ecm

RAM

[RAM]

RedBoot running from
RAM with RedBoot in the
flash boot sector.

redboot_RAM.ecm

Initial Installation Method

Program the ROM RedBoot image into flash using an eprom programmer.

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