Welcome to the homepage of the µTasker operating system with integrated TCP/IP stack, USB and target device simulator

Just Imagine....

...it were so easy and efficient to develop embedded Ethernet/Internet projects.
As easy as developing normal PC software...

		The Kirin3 Coldfire M5225X, launched on 22^nd January 2009 Full details here

But why just imagine when it already can be so? The µTasker is the key.

Its easy to use, fully supported and enables you to get your own project up and running faster than you thought possible. With 'out-of-the-box' complete project support even developers new to Ethernet/Internet and USB technology can get a project up and running in an afternoon. The µTasker is an operating system with TCP/IP stack and USB support as well as drivers for various Internet/USB enabled single-chip microcontrollers. It has its own unique device simulator allowing large parts of, when not complete, projects to be developed and tested on a PC. The simulated device is contactable by other PCs or devices on the network, enabling the most efficient embedded development environment imaginable.

But why imagine? The µTasker can also be your key to success.

Features - what the µTasker project has to offer

Small footprint - The µTasker solution is especially suited to projects where an easy to use, slim-line operating system and TCP/IP stack are of importance. This makes it ideal for single chip applications where the control of resources is critical but a high level of developer/user comfort can't be compromised.
µTasker operating system - efficient and easy to use operating system to enable very modular and manageable software. Inter-task queues with flexible software and HW timer support. Supports distributed processing features over an integrated fast network protocol.
µFileSystem and µParameterSystem - Highly efficient FLASH, SPI FLASH or SPI EEPROM file system support, optimised for typical embedded applications.
Device drivers - UARTs (DMA support for M5223X, SAM7X and Luminary devices with uDMA), I²C, CAN (M5223X), LCD, Matrix keyboard, ADC (M522xx, SAM7X, Luminary).
USB support^* - user friendly configuration and interfacing, with buffered streaming mode as well as firmware upload capability.
Special support - DMA library routines (M5223X - uMemcpy, uMemset), Low power task.
TCP/IP stack - ARP, RARP, ICMP, IP, UDP, DHCP, DNS, TFTP, TCP, dynamic HTTP, HTTP post, FTP, SMTP, POP3, TELNET, NetBIOS and VLAN plus various useful utilities for real-world Internet work. Integrated with the µTasker operating system for optimal performance.
Boot Loader - The µTasker project has integrated support for the "Bare-Minimum" boot loader which enables complete and secure software uploads via Ethernet/Internet (FTP and HTTP POST) as well as USB, and occupies less than 2k of FLASH space! Optionally it allows uploads to external SPI FLASH as well as encryption.
Unique µTasker simulator - allows the supported devices and peripherals to be simulated in "real-time" on the PC and can dramatically reduce development times compared to classical debug methods on the target.
Ready-to-run with pre-configured projects - The µTasker project is delivered with setups for GCC (all devices), IAR4 and IAR5, Keil uVision3, Rowley CrossWorks (SAM7X, LPC23XX, LM3Sxxxx) and CodeWarrior (Freescale devices). The µTasker project is a high quality demonstration project which can be used as base for professional work.

^* Now available for the Coldfire M5225X, M5222X and M5221X devices as well as the ATMEL SAM7X. Luminary Micro service pack including USB will be released shortly.

Supported Processors

Freescale^TM M5225X Kirin3 - 32 bit ColdFire with up to 64k SRAM and up to 512k FLASH, integrated 10/100M Ethernet controller and USB-OTG
Freescale^TM M5223X - 32 bit ColdFire with 32k SRAM and up to 256k FLASH, integrated 10/100M Ethernet controller and PHY
Freescale^TM M5222X - 32 bit ColdFire with 16/32k SRAM and 128k/256k FLASH, integrated USB OTG
Freescale^TM M5221X - 32 bit ColdFire with 8/16k SRAM and 64K/128k FLASH, integrated USB OTG
Freescale^TM M521XX - 32 bit ColdFire with 16k SRAM and 64K/128k FLASH
Freescale^TM M521X - 32 bit ColdFire with 16k/32k SRAM and 128K/256k FLASH with CAN
Freescale^TM MC9S12NE64 - 16 bit HC12 single chip with 8k SRAM and 64k FLASH, integrated 10/100M Ethernet controller and PHY
ATMEL^TM AT91SAM7X - 32 bit ARM7 with up to 128k SRAM and up to 512k FLASH, integrated 10/100M Ethernet controller (external PHY) and USB device
Luminary Micro^TM LM3SXXXX^*** - 32 bit Cortex ^TM M3 with up to 64k SRAM and up to 256k FLASH, integrated 10/100M Ethernet controller and PHY with auto cross-over
NXP^TM LPC23XX^** - 32 bit ARM7 with up to 58k SRAM and up to 512k FLASH, integrated 10/100M Ethernet controller (external PHY)
ST^TM STR91XF^* -32 bit ARM9 with up to 96k SRAM and up to 544k FLASH, integrated 10/100M Ethernet controller (external PHY)

^* this version of the µTasker is now available as Beta! The package supports STR910, STR911 and STR912 devices.

^** this version of the µTasker is now available as Beta! The package supports LPC23XX and LPC2101..LPC2106 devices.

^*** this version of the µTasker is now available as Beta! The package supports LM3S10X, LM3S1968, LM3S3748, LM3S6965 and LM3S8962 but can be easily configured for others.

Further Questions and Contact Details

Should you have specific questions which are not answered on the web site you are also welcome to contact us by email at the following addresses:

For general enquiries -
For licensing questions -
For technical support for the Freescale^TM MC9S12NE64 -
For technical support for the Freescale^TM M522XX family -
For technical support for the ATMEL^TM AT91SAM7X family -
For technical support for the ATMEL^TM AVR32 family -
For technical support for the NXP^TM LPC23xx family -
For technical support for the Luminary Micro^TM LM3Sxxxx family -

If you like the project, you may like to make a donation to aid in its further development.