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Iosoft Ltd. - Software licensing

Development licenses

To experiment with the TCP/IP Lean and ChipWeb code, you must be in possession of a copy of the 'TCP/IP Lean' book; if a team of several programmers are working on the code, they must each possess one copy of the book. There are no other development license fees. This policy gives a low-cost entry into TCP/IP development, and allows the Iosoft code to be evaluated thoroughly before making any commitment to a commercial license.

Commercial licenses

If the software is to be used in a commercial product, or incorporated into anything that is to be sold to a third party, then a commercial license must be purchased from Iosoft Ltd.

A commercial license is issued to a specific company or organisation, and entitles that organisation to incorporate an unlimited number of copies of executable code derived from the Iosoft source (i.e. an 'unlimited incorporation' license). There is no restriction on the number of products, or product types, incorporating this executable code. The Iosoft source code, or linkable libraries derived from it, may not be redistributed.

The commercial license includes 6 months email support from Iosoft Ltd.

See the License FAQ for more information.

Microcontroller licensing

There are two main versions of the ChipWeb microcontroller software

  • VERSION 1.xx The software in 'TCP/IP Lean' ch. 9-11, or the 2nd edition ch. 12, or supplied with the PICDEM.net™ kit, or v1.xx updates purchased on-line from Iosoft Ltd.
  • VERSION 2.xx The software in 'TCP/IP Lean' 2nd edition ch. 13-16, or v2.xx updates purchased on-line from Iosoft Ltd.

To check the version number, see the Iosoft revision header at the top of the main 'C' source file (e.g. P16WEB.C).

Unlimited-incorporation licenses are available for

  • Version 1.xx only
  • Versions 1.xx and 2.xx
  • Version 1.xx license upgrade to include version 2.xx

The wireless driver software is not included in these licenses; see the next section for details of wireless licensing.

Unlimited-incorporation license Price
Purchase now
ChipWeb v1.xx code (TCP/IP Lean ch 9-12 & PICDEM.net) 700.00 £ buy $ buy
ChipWeb v1.xx & v2.xx (TCP/IP Lean ch 9-16 & PICDEM.net) 950.00 £ buy $ buy
v1.xx license upgrade to include v2.xx 250.00 £ buy $ buy

GBP 700 is approximately 1000 US dollars; click on the appropriate 'buy' link to see the current e-commerce dollar price.

The software may be used on PIC16xxxx, PIC18xxxx, or any other microcontroller devices.

Wireless drivers

The ChipWeb Wireless 802.11b driver software is not covered by the standard ChipWeb licenses; an additional driver license must be purchased if the wireless software is being used commercially.

Unlimited-incorporation license Price
Purchase now
802.11b driver 700.00 £ buy $ buy

PC code licensing

The PC code in 'TCP/IP Lean' chapters 1-8 may be licensed for unlimited-incorporation, or on a per-copy (label) basis.

Unlimited-incorporation license Price
Purchase now
PC code (TCP/IP Lean ch.1-8) 2500.00 £ buy $ buy

A label-based license scheme is also available for the PC code. Each label should be affixed somewhere within the product (preferably to a PCB) and covers a single incorporation of executable code derived from the source code in chapters 1-8 of the book.

License labels for PC code (TCP/IP Lean ch.1-8) Price (GBP)
Block of ten license labels 120.00
Block of one hundred license labels 500.00


Licenses may be purchased by credit card using the Iosoft Ltd. e-commerce site, Iosoft Online. Alternative payment is by bank transfer; contact sales@iosoft.co.uk and we will fax you a pro-forma invoice.

Purchase of an unlimited-incorporation license entitles the purchaser to six months' support from Iosoft by email. Further support may be obtained; contact the sales office (sales@iosoft.co.uk) for details.

License conditions

The software carries the following statement:

Copyright (c) Iosoft Ltd. 2001. This source code is only licensed for distribution in the Iosoft ChipWeb package, and the purchaser of that package is granted the non-exclusive right to use the software for personal experimentation only, provided that this copyright notice is retained. All other rights are retained by Iosoft Ltd. Redistribution of this source code is not permitted. Binary images derived from the source code may only be redistributed if a commercial license is obtained; see www.iosoft.co.uk or email license@iosoft.co.uk.

The software is supplied 'as-is' for development purposes, without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for purpose. In no event will Iosoft Ltd. be liable for damages, including any general, special, incidental or consequential damages arising out of the use or inability to use the software, including, but not limited to, loss or corruption of data, or losses sustained by the developer or third parties, or failure of the software to operate with any other software or systems. This license shall be governed by the laws of England.

PICmicro® is a registered trademark of Microchip Technology Inc., PICDEM.net™ is a trademark of Microchip Technology Inc.