NTP 4.x for Windows NT

Introduction

The NTP 4 distribution runs as service on (i386) Windows NT 4.0 and Windows 2000. The binaries work on dual processor systems. This port has not been tested on the Alpha platform.

Refer to System Requirements and Instructions for how to compile the program.

Reference Clocks

Refernce clock support under Windows NT is tricky because the IO functions are so much different. The following reference clocks are supported by Windows NT:

Type 1 Undisciplined Local Clock (LOCAL)
Type 29 Trimble Navigation Palisade GPS (GPS_PALISADE)

Functions Supported

All NTP functions are supported with some constraints. See the TODO list below.

Accuracy

Greg Brackley has implemented a fantastic interpolation scheme that improves the precision of the NTP clock using a realtime thread (is that poetic or what!) which captures a tick count from the 8253 counter after each OS tick. The count is used to interpolate the time between operating system ticks.

On a typical 200+ MHz system NTP achieves a precision of about 5 microseconds and synchronizes the clock to +/-500 microseconds using the Trimble Palisade as UTC reference. This allows distributed applications to use the 10 milliseconds ticks available to them with high confidence.

Binaries

Recent InstallShield based executable versions of NTP for Windows NT (i386) are available from:
http://www.trimble.com/oem/ntp and http://www.five-ten-sg.com/

ToDo

NMEA refclock support is in development.
See if precision can be improved by using CPU cycle counter for tick interpolation.
Make precision time available to applications using NTP_GETTIME API

Compiling Requirements

Windows NT 4.0 or 5.0 (2000)
Microsoft Visual C++ 6.0
Some version of the archiving program ZIP.

Compiling Instructions

Unpack the NTP-4.x.tar.gz
Open the .\ports\winnt\ntp.dsw Visual C workspace
Batch build all projects

Configuration File

The default NTP configuration file path is %SystemRoot%\system32\drivers\etc\.(%SystemRoot% is an environmental variable that can be determined by typing "set" at the "Command Prompt" or from the "System" icon in the "Control Panel").
Refer to your system environment and create your ntp.conf file in the directory corresponding to your system installation.
The older <WINDIR>\ntp.conf is still supported but you will get a log entry reporting that the first file wasn't found.

Installation Instructions

The instsrv program in the instsrv subdirectory of the distribution can be used to install 'ntpd' as a service and start automatically at boot time. Instsrv is automatically compiled with the rest of the distribution if you followed the steps above.

Start a command prompt and enter "instsrv.exe <pathname_for_ntpd.exe>"
Clicking on the "Services" icon in the "Control Panel" will display the list of currently installed services in a dialog box. The NetworkTimeProtocol service should show up in this list. Select it in the list and hit the "Start" button in the dialog box. The NTP service should start.
View the event log by clicking on the "Event Viewer" icon in the "Administrative Tools" group, there should be several successful startup messages from NTP. NTP will keep running and restart automatically when the machine is rebooted.

You can change the start mode (automatic/manual) and other startup parameters corre't found. <4000000000000000000000566306201167154017100 0ustar rootrootCompilation: Usual thing: rm -f Config.local ; make for vanilla make refconf for reference clock (e. g. DCF77) Directory contents: hints/PARSE - this file xntpd/refclock_parse.c - reference clock support for DCF77/GPS in xntp parse/parse.c - Reference clock data parser framework parse/parse_conf.c - parser configuration (clock types) parse/clk_meinberg.c - Meinberg clock formats (DCF U/A 31, PZF 535, GPS166) parse/clk_schmid.c - Schmid receiver (DCF77) parse/clk_rawdcf.c - 100/200ms pulses via 50 Baud line (DCF77) parse/clk_dcf7000.c - ELV DCF7000 (DCF77) parse/clk_trimble.c - Trimble SV6 GPS receiver If you want to add new clock types please check with kardel@informatik.uni-erlangen.de. These files implement the conversion of RS232 data streams into timing information used by refclock_parse.c which is mostly generic except for NTP configuration constants. parse/Makefile.kernel - *SIMPLE* makefile to build a loadable STREAMS module for SunOS 4.x / SunOS 5.x systems parse/parsestreams.c - SUN Streams module (loadable) for radio clocks This streams module is designed for SunOS 4.1.X. parse/parsesolaris.c - SUN Streams module (loadable) for radio clocks. This streams module is designed for SunOS 5.x Beware this is still new - so it might crash your machine (we have seen it working, though). parse/parsetest.c - simple test program for STREAMS module. Its so simple, that it doesn't even set TTY-modes, thus they got to be correct on startup - works for Meinberg receivers parse/testdcf.c - test program for raw DCF77 (100/200ms pulses) receivers include/parse.h - interface to "parse" module and more include/parse_conf.h - interface to "parse" configuration include/sys/parsestreams.h - STREAMS specific definitions scripts/support - scripts (perl & sh) for statistics and rc startup the startup scripts are used in Erlangen for starting the daemon on a variety of Suns and HPs and for Reference Clock startup on Suns These scripts may or may not be helpful to you. Supported clocks: Meinberg DCF U/A 31 Meinberg PZF535/TCXO (Software revision PZFUERL 4.6) Meinberg PZF535/OCXO (Software revision PZFUERL 4.6) Meinberg GPS166 (Software version for Uni-Erlangen) ELV DCF7000 (not recommended - casual/emergency use only) Conrad DCF77 receiver (email: time@informatik.uni-erlangen.de) + level converter TimeBrick (email: time@informatik.uni-erlangen.de) Schmid Receiver Kit Trimble SV6 GPS receiver Addresses: Meinberg Funkuhren Auf der Landwehr 22 31812 Bad Pyrmont Germany Tel.: 05281/20 18 FAX: 05281/60 81 80 ELV Kundenservice Postfach 1000 26787 Leer Germany Tel.: 0491/60 08 88 Walter Schmidt Eichwisrain 14 8634 Hombrechtikon Switzerland If you have problems mail to: time@informatik.uni-erlangen.de We'll help (conditions permitting) ./usr/share/doc/ntp-doc/html/hints/winnt.htm0100644000000000000000000003101507054647674017723 0ustar rootroot NTP on Windows NT