Platform resource usage, Rebuilding redboot, Overview – Comtrol eCos User Manual

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Chapter 5. Installation and Testing

0xc0000000 - 0xc7ffffff

DRAM Bank 0

0xc8000000 - 0xcfffffff

DRAM Bank 1

0xd0000000 - 0xd7ffffff

DRAM Bank 2

0xd8000000 - 0xdfffffff

DRAM Bank 3

0xe0000000 - 0xe7ffffff

Cache Clean

Virtual Address Range

C B

Description

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

- -

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

0x00000000 - 0x01ffffff

Y Y

DRAM Bank 0

0x08000000 - 0x0fffffff

Y Y

SA-1111 Board flash

0x10000000 - 0x17ffffff

N N

Board Registers

0x18000000 - 0x1fffffff

N N

Ethernet

0x20000000 - 0x2fffffff

N N

SA-1111 Board PCMCIA

0x30000000 - 0x3fffffff

N N

Compact Flash

0x40000000 - 0x47ffffff

N N

SA-1111 Board

0x48000000 - 0x4bffffff

N N

GFX

0x50000000 - 0x57ffffff

Y Y

flash

0x80000000 - 0xbfffffff

N N

SA-1110 Internal Registers

0xc0000000 - 0xc1ffffff

N Y

DRAM Bank 0

0xe0000000 - 0xe7ffffff

Y Y

Cache Clean

Platform Resource Usage

The SA11x0 OS timer is used as a polled timer to provide timeout support for network and XModem file transfers.

Rebuilding RedBoot

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

Chapter 3

:

export TARGET=assabet

export ARCH_DIR=arm

export PLATFORM_DIR=sa11x0/assabet

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

ARM/StrongARM(SA11X0) Bright Star Engineering commEngine and
nanoEngine

Overview

RedBoot supports a serial port and the built in ethernet port for communication and downloads. The default serial
port settings are 38400,8,N,1. RedBoot runs from and supports flash management for the system flash region.

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