ARM/ARM7 ARM Evaluator7T

Overview

RedBoot supports both serial ports for communication and downloads. The default serial port settings are 38400,8,N,1.

The following RedBoot configurations are supported:

Configuration	Mode	Description	File
ROM	[ROM]	RedBoot running from flash address 0x20000, with ARM Boot Monitor in flash boot sector.	redboot_ROMA.ecm

Initial Installation

RedBoot is installed using the on-board boot environment. See the user manual for full details.

Quick download instructions

Here are quick start instructions for downloading the prebuilt Redboot image:

Boot the board and press ENTER:

      ARM Evaluator7T Boot Monitor PreRelease 1.00
      Press ENTER within 2 seconds to stop autoboot
      Boot:

Erase the part of the flash where RedBoot will get programmed:
Boot: flasherase 01820000 10000

Prepare to download the UU-encoded version of the RedBoot image:

      Boot: download 10000
      Ready to download. Use 'transmit' option on terminal emulator to download file.

Either use ASCII transmit option in the terminal emulator, or on Linux, simply cat the file to the serial port:
$ cat redboot.UU > /dev/ttyS0
When complete, you should see:
Loaded file redboot.bin at address 000100000, size = 41960 Boot:

Program the flash:

      Boot: flashwrite 01820000 10000 10000

And verify that the module is available:

      Boot: rommodules
      Header   Base     Limit
      018057c8 01800000 018059e7 BootStrapLoader v1.0 Apr 27 2000 10:33:58
      01828f24 01820000 0182a3e8 RedBoot              Apr  5 2001

Reboot the board and you should see the RedBoot banner.

Special RedBoot Commands

None.

Memory Maps

RedBoot sets up the following memory map on the E7T board.

NOTE: The virtual memory maps in this section use a C and B column to indicate whether or not the region is cached (C) or buffered (B).

Physical Address Range  C B  Description
----------------------- - -  -----------
0x00000000 - 0x0007ffff Y N  SDRAM
0x03ff0000 - 0x03ffffff N N  Microcontroller registers
0x01820000 - 0x0187ffff N N  System flash (mirrored)

Rebuilding RedBoot

These shell variables provide the platform-specific information needed for building RedBoot according to the procedure described in Chapter 3:

export TARGET=e7t
export ARCH_DIR=arm
export PLATFORM_DIR=e7t

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