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%% Author: Peter De Schrijver (p2@mind.be)
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eCos

Peter De Schrijver
p2@mind.be
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(c) Mind NV. Author: Peter De Schrijver.
Overview

	What is eCos ?

	Supported platforms and devices (overview)

	Footprint

	Realtime

	Development tools

	New developments

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(c) Mind NV. Author: Peter De Schrijver.
What is eCos ?

	Embedded Configurable Operating System

	Single address space for all threads

	Realtime

	Highly configurable 

	Minimum footprint : about 50KBytes

	Supports POSIX and uItron API's

	Similar to commercial small RTOS's like pSOS

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(c) Mind NV. Author: Peter De Schrijver.
Platform and device support

	ARM, PowerPC, MIPS, SH3/SH4, Intel IA32

	Serial

	Flash memory

	PCMCIA

	Keyboard

	USB slave

	Ethernet, IPv4, SNMP

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(c) Mind NV. Author: Peter De Schrijver.
Development tools

	GNU toolchain

	gdb/ddd

	"synthetic target" : eCos as a linux process

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(c) Mind NV. Author: Peter De Schrijver.
New features in 2.0

	Flash filesystem : JFFS2

	Microwindows GUI

	Power management

	Small tcp/ip stack (lwIP)

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(c) Mind NV. Author: Peter De Schrijver.
Comparison

Linux better than eCos

	Device support
	Networking
	Memory protection
	Filesystem support
	Tools
	Developer community

eCos better than linux

	Footprint
	Realtime behaviour
	XIP support
	Configureable
	Easier to port