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.

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.