ARM ARM DUI 0224I Rebuilding the Boot Monitor, Boot Monitor NOR flash commands CommandAction

Getting Started

Table 2-7 Boot Monitor NOR flash commands (continued)

CommandAction

UNRESERVE SPACE address Free the space starting at address in NOR flash. This space can be used by the Boot Monitor.

WRITE BINARY file [NAME new_name] [FLASH_ADDRESS address] [LOAD_ADDRESS address] [ENTRY_POINT address]

Write a binary file to flash. By default, the image is identified by its file name. Use NAME new_name to specify a name instead of using the default name.

Use FLASH_ADDRESS address to specify where in flash the image is to be located. The optional LOAD_ADDRESS and ENTRY_POINT arguments enable you to specify the load address and the entry point.

If an entry point is not specified, the load address is used as the entry point.

Note

Remote file access requires semihosting. Use a debugger connection to provide semihosting.

WRITE IMAGE file [NAME new_name] [FLASH_ADDRESS address]

Write an ELF image file to flash. By default, the image is identified by its file name. For example, t:\images\boot_monitor.axf is identified as boot_monitor. Use NAME new_name to specify a name instead of using the default name.

Use FLASH_ADDRESS address to specify where in flash the image is to be located. If the image is linked to run from flash, the link address is used and address is ignored.

Note

Remote file access requires semihosting. Use a debugger connection to provide semihosting.

2.6.2Rebuilding the Boot Monitor

All firmware components are built using GNUmake, which is available for UNIX, Linux and for most Windows versions. (To use GNUmake under windows Cygwin must be installed, for more information contact Redhat.)

Because the platform library used by the Boot Monitor requires callout startup routines support specific to RVCT, the Boot Monitor (and any application that uses the platform library for directing STDIO) can only be rebuilt using RVCT tools.

To rebuild the Boot Monitor, set your default directory to

install_directory/Firmware/Boot_Monitor and type make from a DOS command line.

You can specify the following build options after the make command:

•BIG_ENDIAN=1/0, defining image endianness (Default 0, little endian)

•THUMB=1/0, defining image state (Default 0, ARM)

•DEBUG=1/0, defining optimization level (Default 0, optimized code)

2-18 Copyright © 2003-2010 ARM Limited. All rights reserved. ARM DUI 0224I