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HCOM

Source: https://web.archive.org/web/20120221051431/http://huskyhunter.wiki.zoho.com/HUSKY-File-Transfer-Utility.html

HUSKY File Transfer Utility

Syntax

HCOM

Description

The HCOM programs allow the Husky Hunter 2 to communicate with the HCOM for Windows or HCOM for MS-DOS program. HCOM is a file transfer utility designed for use with the full range of Husky rugged hand-held computers. It uses an interface similar to File Manager and will operate on MS-DOS and all Windows platforms including Windows 3.1x, Windows 95, Windows NT (3.51 and 4.x) and Windows XP.

Note: Transferring files from the Husky Hunter 2 to the Windows PC does not appear to work when running under Windows XP.

Features

HCOM for Windows offers the following features:

Ability to communicate with all Husky hand-held computers.
Transmit and receive files using a point and click user interface.
Easy file management of connected hand-held computers.
Compatible with MS-DOS and Windows 3.1x, 95, NT 3.51 and NT 4.x
The use of channels allows multiple file transfers simultaneously.
Command-line parameters provide compatibilty with MSDOS version.
Synchronisation of hand-held clock with PC calendar.
Programmers API available for seamless application integration.

Download

hcomw.zip - HCOM for Windows and MS-DOS

hcomw.zip - HCOM can also be found on my GitHub

Installing HCOM on the Husky Hunter 2

If the HCOM program is not installed on the Husky Hunter 2, it must be downloaded and installed from the PC running HCOM for Windows/DOS.

Connect the Hunter to a serial port on the PC.
Open a channel using HCOM for Windows/MS-DOS using the same serial port.
Select the Session / Software Download option and choose Hunter from the list of machines.
On the Hunter ensure that the communications parameters are set as follows (type COMS at the DEMOS prompt to start the serial port configuration program):

Transmission Parameters
Rate - 2400 Prtcl - none Pty - 8bit
CTS - n DTR - n LF - n Echo - n T/O - n Null - 0

Receiving Parameters
Rate - 2400 Prtcl - none Pty - 8bit
RTS - off DSR - n DCD - n T/O - n Serig - off

On the Hunter, type the command ''INP 999 HCOM.COM''. The screen should now display ''Waiting''.
On the PC select the OK button to start the transfer. The Hunter screen should now display ''Loading''.
When the transfer is complete press ESC (Shift-BRK) on the Hunter to save the software to disk. The Hunter screen should now display ''Aborted''.
Run HCOM on the Hunter and select the Reconnect option on the PC. The directory of the Hunters disk should now be displayed.

Using HCOM

Start HCOM on the Husky Hunter 2 by running the HCOM command. The following screen will be displayed:

:========================================:
: HUSKY File Transfer Utility V1.0.1 :
: (C) Copyright Husky Computers Ltd :
:========================================:

press ESC to exit.

You can now connect to the Husky Hunter 2 using HCOM for Windows.

To exit the HCOM program press the ESC key (Shift-BRK).

Husky Serial Cable

While the Husky computers use standard RS-232 serial ports, their communication cables are not your usual NULL-MODEM or peripheral cable. The schematic is not out on the web, however I have been given a whole load of scanned documents I have uploaded here that have the communications cable layout in one of them.

Now I can communicate with my FS2, FS3 & MP2500 computers without having to take them apart to read memory directly.

Documentation: https://archive.org/details/tn-554-1-fex-21-dial-up-instructions/TN559-2%20Com%20Port%20Pin%20Outs%20and%20Cable%20Specifications.PDF

The main snippet that has the information is here, screenshot to the left. With my 9-pin cable I used the shield as the GND as the DB9 had no GND in the standard. Aside from that both the RX & TX are flipped. The RTS & CTS are also flipped. No other pins are needed for the cable & it is really simple to put together a custom able for communicated with any Husky computer.

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