Memory maps, Rebuilding redboot, Superh/sh3(sh7709) hitachi solution engine 7709 – Comtrol eCos User Manual

Page 262: Overview, Initial installation method

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Chapter 5. Installation and Testing

Memory Maps

RedBoot sets up the following memory map on the EDK7708 board.

Physical Address Range

Description

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

0x80000000 - 0x8001ffff Flash (AT29LV1024)

0x88000000 - 0x881fffff DRAM

0xa4000000 - 0xa40000ff LED ON

0xb8000000 - 0xb80000ff LED ON

Rebuilding RedBoot

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

Chapter 3

:

export TARGET=edk7708

export ARCH_DIR=sh

export PLATFORM_DIR=edk7708

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

SuperH/SH3(SH7709) Hitachi Solution Engine 7709

Overview

This description covers the MS7709SE01 variant. See

the Section called SuperH/SH3(SH77X9) Hitachi Solution

Engine 77X9

for instructions for the MS7729SE01 and MS7709SSE0101 variants.

RedBoot uses the COM1 and COM2 serial ports. The default serial port settings are 38400,8,N,1. Ethernet is also
supported using the 10-base T connector.

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

158

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