P18WEB v2.21: ChipWeb Wireless source-code
------------------------------------------

Welcome to the second release of the ChipWeb Wireless source code package for
the PIC18F452 microcontroller. This release includes:

 - Support for CCS and Hi-Tech compilers
 - UDP and TCP client functionality
 - Wireless card power saving (power management)

Installation
------------

If you have obtained this version as an upgrade, you must already have P18WEB
v2.17 installed; earlier versions will be incompatible.

If you have a zipfile, unzip the files into a new directory; \ChipWeb\p18Web is
recommended. The relative directory structure must be preserved, so that a
sub-directory called ROMDOCS is automatically created.

When installing from CD-ROM, copy the files into the new directory, preserving
the directory structure.

Two binary images are provided: P18WEB.HEX, which is compatible with the ER21,
and P18PNET.HEX, which has no wireless interface and is compatible with the 
Microchip PICDEM.net and Crownhill Proton-Net boards.

A new serial console prompt has been added; after the channel number and SSID,
there is a Y/N prompt for enabling power management. If you respond N, the
PCMCIA card will operate without power management, so will run at maximum speed.
If power management is enabled, there is a significant saving in power consumption,
but the network response time is increased.

Documentation
-------------

The file ER21SW2.PDF contains the software documentation. The full hardware
documentation is only available to purchasers of the ER21 development board,
and is supplied in printed form with the board; a truncated version is
available on-line at www.iosoft.co.uk.

Licensing
---------

The software may be used for personal experimentation by the purchaser of the
package, without any additional license being required.

Commercial usage of the software must be covered by a license; see the Iosoft
Web site www.iosoft.co.uk for details.

V2.21 release notes
-------------------

Full TCP & UDP client functionality is now available - see the PDF documentation
for details.

This release is compatible with CCS and Hi-Tech compilers; PCH version 3.110
and PICC18 v8.20PL4 have been used for testing.

Only 1 WEP key (key 1) can be used; attempting to use keys 2-4 will result
in an error message being displayed.

FAQ and updates
---------------

Keep an eye on the Iosoft Ltd. Web site (www.iosoft.co.uk).

JPB 4/3/02