Introduction

has been making PDA's for years. This document will concentrate on the Series 5* models, e.g. Series 5, and Series 5mx PRO and the 32 bit EPOC operating system they come with, but there will be some crossover to older models such as the Series 3* and newer models such as the Series 7. There is also a little information about other at the end of this document. This Document

The latest version of this document can be found at , but the main repository is the Linux Documentation Project (). Please send updates, corrections or suggestions to . Mailing List

There is a mailing list dedicated to using Psions with Linux and developing tools to enhance communication between them. To subscribe, send a message to . John Schrader has put up a of messages from Oct 1998 through Feb 1999. There is also a mailing list dedicated to porting Linux to the Psion 5* models at . An archive beginning 04Dec1999 is available at . Both mailing lists can be searched through the SourceForge interface. Copyright notice and disclaimer

(c) 1999-2000 Hans Kugler This document may be distributed under the terms set forth in the LDP license at . The author reserves the right to release the document and all submissions under a different license in addition to the LDP license. This document is provided ``AS IS'', with no express or implied warranties. Use the information in this document at your own risk. General Information

What is a Psion

Psion is a powerful Personal Digital Assistant (PDA) with pen-based touch screen as well as keyboard. There are several models. This HOWTO currently only covers the Series 5* models, e.g. Series 5, Series 5mx and Series 5mxPro. Psion models

There are several models of Psion PDAs. All have a foldout case where the screen is in the cover and opening the Psion causes the keyboard to jut out to a more usable position. They also feature the instant on and instant off capabilities of the EPOC operating system. Psion 3* are older PDAs that still have a lot of functionality and still get sold new due to their meeting needs and being lower cost. This HOWTO doesn't currently cover the Psion 3* series. Psion 5* has two main product lines with each having two models. The Psion series 5 has a green limited edition counterpart with no functional difference between itself and the standard Series 5. The series 5mxPro, however, has some fundamental differences from the Series 5mx. All four of the Series 5* products have: compact flash, serial port, keyboard and stylus (for the touchscreen). They all operate on 2 AA batteries and have a backup battery to maintain state when changing out the main batteries. Check out to take a tour of a dissected Series 5 classic. Both of the Series 5 models as well as the Series 5mx have system ROMs where the EPOC operating system is stored. After boot they operate out of the RAM (8MB for the Series 5 models and 16MB for the Series 5mx). The Series 5mxPro, however, has no ROM and operates entirely out of its 24MB of RAM. This enables software upgrades to the Series 5mxPro, whereas the other 3 models must exchange hardware to update EPOC. Psion has also released the Series 7, which is set to compete against the subnotebook class of PC, but running EPOC. They also have a Revo, which is smaller than the Series 5*. Psion Availability

Psion products are no longer available at retail stores in the US. They are available from retail shops in Europe as well as through mail order. Psion maintains a list of firms by country on their web site. Sharing data between the Psion and Linux

Hardware connectivity options

The Psions have both serial and infra red ports. Either can be used for connectivity, but most connectivity programs currently only have features for the serial port connection. Serial cable

Armin Podtschaske x-rayed the "honda" connector. Pin 1 is on the top and pin 15 is on the bottom. Only pins 2 through 8 and 15 are connected. Pin 2: RTS Pin 3: DTR Pin 4: TXD Pin 5: DSR Pin 6: DCD Pin 7: CTS Pin 8: RXD Pin 15: GND - Signal and Power ground Frame: GND - Shield frame ground IrDA

See Werner Heuser's for information about using the Linux IrDA driver with a Psion. It is possible to beam files from Psion 5 (mx) via Linux-IrDA to a Linux System. The irda-utils include a special client psion5.c which can beam files between them. Builtin programs

There are two builtin software methods to use the communications ports. The first is the remote link, <ctrl>-l from the main file menu, which can be set to serial, infrared or off. EPOC also provides the program comms. The remote link must be set to off for the comms program to have access to the serial port. Programs for connectivity

plptools

Description was originally developed by Fritz Elfert, who had merged plp and . plptools is currently being worked on by members of the PLP Tools project. plptools comprises of 3 different programs. ncpd provides a socket connection to the Psion. plpnfsd provides mounted filesystem access to the Psion and plpftp provides ftp access to the Psion. Usage ncpd [-V] [-v logclass] [-d] [-p <port>] [-s <device>] [-b <baudrate>] plpnfsd [-v] [-V] [-p port] [-d mountdir] [-u user] First start ncpd get it to listen on a port (7501 by default) for connection requests. Then, start either plpnfsd or plpftp. plpnfsd defaults to mount the Psion under /mnt/psion. p3nfs/p5nfs

Description mounts the psion drives over the serial cable at /psion.stand/mnt, by default. ncp

Description Matt Gumbley originally started for use with his Psion Series 3. Now that he's working on , you should use that :). However, ncp might still be of interest to users of a Psion Series 3, which this HOWTO doesn't cover :). Matt's ncp page also has information about the plp protocol. Linux utilities

Psiconv

Description translates Psion Word documents or TextEd files (as used by the OPL editor, for example) to HTML (3.2 or 4.0) or plain text. It can also translate Sketch files and MBM files to almost any graphics format. A description of the Psion files formats is also included. psiontobbdb

Description converts Psion vcard format from the EPOC Contacts application to emacs BBDB format. psiontognomecard

Description converts Psion vcard format from the EPOC Contacts application GnomeCard vcard format. kab2psion

Description is a small utility written in perl to create a CSV file from the KDE addressbook. PsiLin

Description (in French, ) is a GTK-based graphical frontend for many programs which connect Linux to Psion. It also works for Series 3*. Psion SDK

Description The EPOC SDK works on Linux via WINE, see Olaf Flebbe's for instructions on how to get it working. Xmakesys

Description is a perl utilility that parses Psion's .pkg files and outputs .sis files. Psion utilities

hermes

Description is a fully featured vt100 emulator. perl

Description Olaf Flebbe has running under EPOC. python

Description Duncan Booth has running under EPOC. (link currently down) python

Description Otfried Cheong also has a port of for EPOC. BProlog

Description Tim Wentford has gotten working on the Psion 5*. Shell5

Description Nick Murray has created , which is a command line interpreter which allows basic file operations as well as some sophisticated functions such as command history, filename expansion, batch file support, input and output redirection, pipe like feature :), aliases and shell variables, keyboard remapping and macros and UNIX or DOS syntax for pathnames. E_Shell

Description E-shell comes with the SDK and is a DOS-like shell environment from the EPOC SDK. It provides ways to launch programs from a command line; to check for file system corruption; to create, edit and display plain text files; to check on currently active processes and threads. The former link to download the shell itself has been removed. c2f

Description converts the Psion contact file to a comma delimited format. Hardware Info

Hardware Troubleshooting

Pictures of internals

Akaev has disassembled several handhelds and made lots of pictures available as tours.

Disassembly

Further Information

Psion Specs

Psion File Formats

Frodo Looijaard has released information about the he's garnered from reverse engineering various Psion file formats. PLP and NCP

Matt Gumbley has released some about the , Psion Link Protocol, and . SIS and PLP

Alexander Thoukydides has released some information about files as well as the , Psion Link Protocol. Series 3

Further Information

As I said earlier, this HOWTO doesn't cover the Series 3 ( e.g. 3/3a/3c/3mx/Sienna ), however, as I run into information, I will try to place it here anyway. This section will probably never be organized (unless someone else keeps it uptodate), but it still might contain useful information. Programs for connectivity

p3nfs/p5nfs

Description , referenced mounts the psion drives over the serial cable at /psion.stand/mnt, by default. Psion utilities

nfsc

Description is a VT100 emulator from Rudolf König. Shell3a

Description Nick Murray has created , which is a command line interpreter which allows basic file operations as well as some sophisticated functions such as command history, filename expansion, batch file support, input and output redirection, pipe like feature :), aliases and shell variables, keyboard remapping and macros and UNIX or DOS syntax for pathnames. PsiLin

Description , mentioned in the Series 5* sections, also supports Series 3* arb's Psion Software

Description Various for Series 3* from arb. Informational Web Pages

Hardware Info

, e.g. Disassembling a Series 3a (in German only)

Psion Link Protocol (for Psion 3)

Generic FAQs

Series 3 FAQ: , , ,

Revo

Informational Web Pages

Hardware Info