Sun Microsystems V2.0 manual Memory usage, Start address Space Use, SDK files

Memory usage

The Sun SPOT flash memory runs from 0x10000000 to 0x10400000 (4M bytes), and is organized as 8 x 8Kb followed by 62 x 64Kb followed by 8 x 8Kb sectors. The flash memory is allocated as follows:

Start address	Space	Use
0x10000000	64Kb	Bootloader
0x10010000	256Kb	VM executable
0x10050000	512Kb	Squawk bootstrap suite bytecodes
0x100D0000	448Kb	Library suite bytecodes
0x10140000	384Kb	Application slot 1
0x101A0000	384Kb	Application slot 2
0x10200000	2Mb less 16Kb	Available for data storage
0x103FC000	16Kb	Persistent properties and config page

The Sun SPOT external RAM is mapped to run from 0x20000000 to 0x20080000 (512K bytes).

SDK files

The SDK installer places a number of files and directories into the SDK directory specified during installation. This section explains the purpose of each file and directory.

sunspot-sdk
Ant	[Private - holds ant scripts]
Arm	Directory holding binary files specific to the Sun SPOT
Bin	Host-specific executables
Doc	Documentation
Lib	Various jar files
upgrade	Files used to upgrade firmware during “ant upgrade”
Src	Library source code
Tests	Test programs
build.xml	The master ant build script
Default.properties	Default property settings for the master ant build script
index.html	Index into supplied documentation
SunSPOT.inf	[Private – a copy of the Windows USB device
	information file, which should not be needed by the user]
version.properties	The version of the installed SDK
Contents of the arm directory:
bootloader-spot.bin	The ready-to-flash version of the bootloader for the Sun SPOT
	device.
spotlib.suite	The base Sun SPOT device library suite.
squawk.suite	The bootstrap suite used when creating Sun SPOT application
	suites.
transducerlib.suite	A Sun SPOT library suite containing the base library, the
	comms stack and the eDemo board library.
vm-spot.bin	The ready-to-flash version of the VM executable.
Contents of the lib directory:

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