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- 7th January 1994
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- Support Group Application Note : Pocket Book General Hints and Tips
- Number: 246
- Issue: 1.03
- Author: Dean Murphy
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-
- Pocket Book General Hints and Tips
-
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- Applicable Hardware: Acorn Pocket Book
-
-
- Related Application Notes: None
-
-
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- Copyright (C) 1994 Acorn Computers Limited
-
- Every effort has been made to ensure that the information in this leaflet is
- true and correct at the time of printing. However, the products described in
- this leaflet are subject to continuous development and improvements and
- Acorn Computers Limited reserves the right to change its specifications at
- any time. Acorn Computers Limited cannot accept liability for any loss or
- damage arising from the use of any information or particulars in this
- leaflet. ACORN, ECONET and ARCHIMEDES are trademarks of Acorn Computers
- Limited.
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- Support Group
- Acorn Computers Limited
- Acorn House
- Vision Park
- Histon
- Cambridge
- CB4 4AE
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- Using the A-Link with the Acorn Pocket Book
-
- Starting an A-Link session
-
- When connecting the Pocket Book to an Archimedes machine via the A-Link, it
- is important to follow the guidelines below to ensure a proper connection
- between the two.
-
- NOTE: When Using the A-Link it is advisable that a mains adaptor be used as
- using the A-Link places a very heavy load on the batteries and can seriously
- reduce their expected life time. The A-Link will not work if there less than
- 50K free memory on the Pocket Book. To find out how much memory you have
- free, press Acorn-M when in the desktop. More memory can be made available
- by quitting applications which are currently running in the background or by
- deleting files from the RAM disk. For details on how to do this, please
- refer to the User Guide supplied with the Pocket Book.
-
- 1. Ensure that both the Pocket Book and the Archimedes are switched off
- 2. Connect A-LINK to Archimedes
- 3. Switch on Archimedes
- 4. Load A-Link software
- 5. Connect A-Link to Pocket book
- 6. Switch on Pocket Book
- 7. On the Pocket Book, set the Remote Link to On (press Acorn-L)
- 8. On the Archimedes, click on PocketFS icon
-
- At the end of an A-Link session, it is important to remember to dismount the
- A-Link correctly. Following the procedure below will help to prevent any
- future problems with the A-Link and Pocket Book.
-
- 1. Using the option in the PocketFS menu, Dismount the A-Link
- 2. On the Pocket Book, set the Remote Link to OFF (press Acorn-L)
- 3. Quit PocketFS software
- 4. Switch off Pocket Book
- 5. Remove A-Link from Pocket Book
-
- If problems persist, reset the pocket book by pressing gently on the reset
- button via the reset hole using an unfolded paper clip. The reset hole is
- located just above the ON/Esc key.
-
- < FIG 1 HERE >
-
- Transferring Write, Abacus and Card files
-
- Although the Acorn A-Link can be used to transfer any type of file between
- the Archimedes and Pocket Book (and vice-versa) the most common use of the
- A-Link is to transfer files to and from the applications that are supplied
- with the Pocket Book as standard i.e. Write, Abacus and Cards.
-
- Because Write, Abacus and Cards files cannot directly be understood by
- Archimedes applications, it is necessary for the A-Link to convert them to a
- standard which they can. Below is a table of which format the files from the
- standard applications will be converted to by the A-Link software
-
- Application Name Write Abacus Cards
-
- A-Link file format ASCII CSV CSV
-
- What does ASCII and CSV mean?
-
- An ASCII document is one which contains only plain text. It does not contain
- control codes, or document formatting information, therefore, any documents
- which are converted to ASCII format will loose any font, style or layout
- information that was in the original. An ASCII file can be read by almost
- all word processors and desktop publishing packages available for any
- machine.
-
- CSV stands for Comma Seperated Value file. A CSV file will contain items or
- information seperated by the ',' symbol e.g. a database record in a database
- is normally made up of several fields, see below;
-
- NAME: Mr. Smith
- ADDRESS: Normal Street
- TEL: 0123 456789
- FAX: 0987 654321
-
- If a record such as the one above were to be exported as a CSV file, it
- would look something like this;
-
- "Mr. Smith","Normal Street","0123 456789","0987 654321"
-
- Most Database and Spreadsheet applications on the Archimedes will import a
- CSV file without difficulty but again, it is necessary to realise that only
- the data will be transferred, any formatting or layout information will be
- lost in the transition.
-
- With Spreadsheets, another fact to bear in mind when using a CSV file is
- that formula or calculations will not be transferred, only the results
- obtained from using these formulae.
-
- Possible Errors when using the A-Link
-
- Already opened by another process
-
- The file which you are attempting to transfer is currently being used
- (or held open) by an application on the Pocket Book. In order to make this
- file available for transfer, it will be necessary to quit the application
- which is using the file. An application can be quit by highlighting its icon
- on the desktop and pressing Acorn-Q. If this fails, try resetting the Pocket
- Book. For details on how to reset the Pocket Book see the paragraph above.
-
- Please insert Pocket Book
-
- The A-Link can no longer find the Pocket Book, this may be a result of a bad
- connection between the machine and the Pocket Book. Check connections and
- start again.
-
-
- Backing up files from the Pocket Book
-
- When backing up files from the Pocket Book, it is possible that the files,
- once stored on an Archimedes formatted disk will have their names truncated
- e.g. 'Application' will be truncated to 'Applicatio'. This can make
- re-installing the backed up files quite awkward.
-
- As the structure of a PC formatted disc matches more closely that of the
- Pocket Book, files which are backed up to a DOS formatted disk on the
- Archimedes will not be truncated or renamed. For this reason, it is
- recommended that Pocket Book files be backed up to DOS Formatted floppy
- disks.
-
- Please refer to the Archimedes User Guide for details on formatting DOS
- disks.
-
- NOTE: This section only applies to users of PocketFS 2 and greater. Earlier
- versions of the PocketFS software, when re-installing backups, added the
- .ris extension to file names which had a DATA file type on the Archimedes.
-
-
- Expanding the Pocket Books Storage Capacity
-
- There are two different options available when upgrading Pocket Book memory,
- by using either Flash or RAM disk SSDs (Solid State Disks).
-
- Both Flash and RAM SSDs are storage devices similar to floppy or hard disks
- on the Archimedes. Flash disks are available in several sizes, 128K, 256K,
- 512K, 1 Megabyte and 2 Megabytes. RAM SSDs are available only in sizes of
- 128K, 256K and 1 Megabyte.
-
- Flash and RAM SSDs differ in several areas. A Flash disk cannot re-allocate
- storage space once it has been used so it is therefore inevitable that
- reformatting the disk will be necessary after heavy usage. RAM disks, have
- an on-board battery which provides power for reading or writing data where
- as Flash disks depend on the Pocket Books main batteries for power. Flash
- disks do not however, require any power to retain their data when removed
- from the Pocket Book. Due to the nature of RAM SSDs, the Pocket Book can
- access these disks much quicker than a Flash disk. Access times are in fact
- really only worth considering in speed critical environments.
-
- Prices for RAM and Flash disks vary according to size and type. RAM Disks
- are however, generally more expensive than Flash disks. All of these
- devices can be plugged directly into either of the expansion slots in the
- Pocket Book.
-
-
- Battery Low Warnings
-
- It is not necessary to replace the Pocket Books main batteries when the
- first Battery Low warning is given. It is in fact, quite safe to continue to
- use the Pocket Book until it no longer switches on due to dead batteries. All
- files stored on the Pocket Book are protected by a backup battery which is
- used only when the main batteries are dead. The backup battery can keep files
- safe for up to two months but will not power the Pocket Book itself.
-
-
- Replacing the Backup Battery
-
- Before removing the Backup Battery, you must ensure that the main batteries
- are installed and charged, otherwise, all files will be lost!
-
-