Crossware Adds Memory Management Unit Support to ARM Debugger

CAMBRIDGE, England--(Business Wire)--
Crossware (www.crossware.com), a leading embedded software tools
developer, has added support for the ARM9 memory management unit (MMU)
and fast context switch extension (FCSE) to its ARM(R) Development
Suite. This allows developers to rapidly exploit the advanced memory
management features of ARM9 chips such as the Atmel AT91SAM9263 and
Atmel AT91RM9200 microcontrollers.

Full debugging is possible when the memory management unit is
enabled even when complex virtual to physical memory translation is
being used. The Crossware debugger understands the memory address
translation process and can determine which physical memory is being
used for different virtual addresses.

Full debugging is also possible when the fast context switch
extension is being used. The FCSE allows different processes to easily
share the same memory space. The Crossware debugger knows which
executable code belongs to each process and can select the appropriate
debugging information even though the processes share the same
execution address.

Crossware's ARM simulator will also simulate the operation of the
MMU and the FCSE. This enables code which uses these features to be
tested on the developer's PC before being tested on the target
hardware. It also allows developers to explore the operation of the
MMU and FCSE without having any hardware at all.

The complex memory organisation required when virtual memory
translation is being used or when the fast context switch extension is
in operation necessitates the use of a linker script to specify the
detailed code and data layout of the target system. In order to
simplify the process of creating the linker script, Crossware has
added a drag-and-drop GUI linker script editing facility to its
Embedded Development Studio. This allows the developer to rapidly
create and modify linker scripts and therefore avoid the need for a
detailed understanding of the linker script command language.

For more information please contact Alan Harry, Crossware, Old
Post House, Silver Street, Litlington, Royston, Herts, SG8 0QE, UK,
tel: + 44 (0) 1763 853500 or fax + 44 (0) 1763 853330,
alan@crossware.com.

An extended version of this news release along with accompanying
photography is available at:

http://www.crossware.com/press/april08

Crossware
Mr Alan Harry
Tel: + 44 (0) 1763 853500 (UK)
Tel: +1-360-812-2397 (USA)
Fax: + 44 (0) 1763 853330
E-mail: alan@crossware.com

Copyright Business Wire 2008