Comtrol eCos - Manual (Page 265)

Chapter 5. Installation and Testing
SuperH/SH3(SH7729) Hitachi HS7729PCI
Overview
RedBoot uses the COM1 and COM2 serial ports (and the debug port on the motherboard). The default serial port
settings are 38400,8,N,1. Ethernet is also supported using a D-Link DFE-530TX PCI plugin card. 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
A ROM mode RedBoot image must be programmed into the two EPROMs. Two files with a split version of the
ROM mode image is provided: it is also possible to recreate these from the
redboot.bin file, but requires the
split_word.c program in hal/sh/hs7729pci/VERSION /misc to be built and executed with the redboot.bin
filename as sole argument.
After doing this it is advised that another ROM mode image of RedBoot is programmed into the on-board flash,
and that copy be used for booting the board. This allows for software programmed updates of RedBoot instead of
having to reprogram the EPROMs.
1. Program the EPROMs with RedBoot. The .lo image should go in socket M1 and the .hi image in socket M2.
2. Set switch SW1-6 to ON [boot from EPROM]
3. Follow the instructions under Flash management for updating the flash copy of RedBoot, but force the flash
destination address with
-f 0x80400000
due to setting of the SW1-6 switch.
4. Set switch SW1-6 to OFF [boot from flash] and reboot the board. You should now see the RedBoot banner. At
this time you may want to issue the command fis init to initialize the flash table with the correct addresses.
Special RedBoot Commands
The exec command which allows the loading and execution of Linux kernels is supported for this board (see the
Section called Executing Programs from RedBoot in Chapter 2 ). The exec parameters used for the HS7729PCI are:
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