Comtrol eCos - Manual (Page 244)

Chapter 5. Installation and Testing
The ’Run’ LED on the core board should be on. Connecting to the MDSboard with a terminal and typing enter
should result in RedBoot reprinting the command prompt.
Special RedBoot Commands
None.
Special Note on Serial Channel
The MDSChip board uses a relatively slow microcontroller to provide the pseudo-register interface to the core
board. This pseudo-register interface provides access to the serial channel and write access to program memory.
Those interfaces are slow and the serial channel is easily overrun by a fast host. For this reason, GDB must be told
to limit the size of code download packets to avoid serial overrun. This is done with the following GDB command:
(gdb) set download-write-size 25
Rebuilding RedBoot
These shell variables provide the platform-specific information needed for building RedBoot according to the
procedure described in
Chapter 3 :
export TARGET=calm32_ceb
export ARCH_DIR=calmrisc32
export PLATFORM_DIR=ceb
The names of configuration files are listed above with the description of the associated modes.
FRV/FRV400 Fujitsu FR-V 400 (MB-93091)
Overview
RedBoot supports both serial ports, which are available via the stacked serial connectors on the mother board. The
topmost port is the default and is considered to be port 0 by RedBoot. The bottommost port is serial port 1. The
default serial port settings are 38400,8,N,1.
FLASH management is also supported, but only for the FLASH device in IC7. This arrangement allows for IC8 to
retain either the original Fujitsu board firmware, or some application specific contents.
The following RedBoot configurations are supported:
Configuration Mode Description File
140