Meinberg GPS167PC Скачать руководство пользователя страница 17 | Manualshive

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Meinberg GPS167PC Скачать руководство пользователя страница 17

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The resident driver for DOS/Windows

The resident driver PCPSDRV.COM runs with DOS version 2.11 or greater, Win-
dows 3.x, or Windows 9x. It uses only about 1500 bytes of memory and periodically
synchronizes the computer´s system time to the board time. Additionally, the driver is
able to display the board´s time continuously in a window on the text screen. This
feature can be enabled and controlled by some of the utility programs (see next
chapter).

In order to avoid conflicts accessing the board the driver should not be installed or

be temporarily disabled using the utility DRV.EXE if user-written software accesses
the board.

If the driver has to be installed every boot time, it should be called from the

AUTOEXEC.BAT which should reside in the root directory of the boot drive. Assu-
ming the driver file can be found in the directory MEINBERG on drive C:, a
command line like that shown below should be added to the AUTOEXEC.BAT using
any text editor:

C:\MEINBERG\PCPSDRV [port] [U:xxxx] [I] [R]

The parameter

port

is only needed for clocks with ISA bus, if the I/O port base

address does not match the default I/O address (300 hex). If a clock with PCI bus or
Microchannel bus is installed then the program will automatically retrieve the I/O
address from the computer's BIOS.

The optional parameter

U:xxxx

can be used to set the time span to be used for the

periodical update of the system time. Valid numbers for xxxx are 1 to 3600 (seconds).
If this parameter is omitted the time span defaults to 1800 seconds (= 30 minutes).

By default the driver will adjust the computer´s system time only if the clock has

synchronized at least once after power-up (Status: Synchronized after last Reset). If
the clock is installed in an environment where the RF signal can not be received
properly the parameter

I

may be given on the command line to let the driver ignore

that status flag and adjust system time even if the clock has not synchronized after
power-up.

The last parameter

R

tells the resident driver to set the real time clock in AT

compatible computers directly. This is only required if the DOS/BIOS interrupts
which modify the computer´s time are redirected by other applications as on Novell
Netware 2.xx file servers. In the default case this parameter should not be used in
order to minimize the execution time of the resident driver.

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Содержание GPS167PC

Страница 1: ...GPS167PC Technical Information Operating Instructions FUNKUHREN...

Страница 2: ...Impressum Werner Meinberg Auf der Landwehr 22 D 31812 Bad Pyrmont Phone 49 52 81 9309 0 Fax 49 52 81 9309 30 Internet http www meinberg de Email info meinberg de October 30 2001...

Страница 3: ...ver 9 Installing the Radio Clock 9 Setting The Port Base Address 9 Configuring the 9 pin Connector 11 Mounting the Board 11 Mounting the Antenna 11 Powering Up the System 12 Files on the Diskette ship...

Страница 4: ...nical Specifications GPS167PC 21 Technical Specifications of Antenna 23 Assembly with CN UB E CN UB 280DC 24 Format of the Meinberg Standard Time String 25 Format of the Meinberg Capture String 26 Ass...

Страница 5: ...on of 24 satellites together with some active spares in six orbital planes 20000 km over ground provides a minimum of four satellites to be in view 24 hours a day at every point of the globe Four sate...

Страница 6: ...tile memory at power up Optionally the clock is also available with a higher precision time base A monitoring software shipped with the board can be used to check the clock s status and configure some...

Страница 7: ...me events A falling TTL slope at one of these inputs lets the microprocessor save the current real time in its capture buffer From the buffer an ASCII string per capture event can be transmitted via C...

Страница 8: ...n below M Start of Minute 0 R RF Transmission via secondary antenna 0 A1 Announcement of a change in daylight saving Z1 Z2 Time zone identification Z1 Z2 0 1 Daylight saving disabled Z1 Z2 1 0 Dayligh...

Страница 9: ...DIL switch on the board can be used to wire some TTL inputs or outputs 0 5V to some connector pins In this case absolute care must be taken if another device is connected to the port because voltage...

Страница 10: ...er 7 is assigned to A8 A9 is hard wired to logical 1 Any switch in the ON position ties the corresponding address line to logical 0 Some common port base addresses and the corresponding DIL switch set...

Страница 11: ...ny ISA slot not used yet The rear slot cover must be removed before the board can be carefully plugged in The computer s case should be closed again and the antenna can be connected to the coaxial plu...

Страница 12: ...elevation and doppler might not match those values expected by the receiver thus forcing the receiver to start scanning for satellites This mode is called Warm Boot because the receiver can obtain ID...

Страница 13: ...manent date time window on the screen COLOR EXE sets the screen attribute of the permanent date time window Support for other Operating Systems Drivers for the operating systems listed below are optio...

Страница 14: ...rameters is described below P xxx This parameter is only needed for clocks with ISA bus if the I O port base address does not match the default I O add ress 300 hex If a clock with PCI bus or Micro ch...

Страница 15: ...t RTC direct enables the driver to write directly to the computer s real time clock This feature is required in some special environments only see the description of PCPSDRV COM below The Tick Counter...

Страница 16: ...r daylight saving is currently in effect or not Time zone and daylight saving parameters can be viewed or modified by a dialog window which comes up if the key F5 is pressed The example below shows th...

Страница 17: ...rt base address does not match the default I O address 300 hex If a clock with PCI bus or Microchannel bus is installed then the program will automatically retrieve the I O address from the computer s...

Страница 18: ...ow only when special applications are run Firmware Updates Whenever the on board software must be upgraded or modified the new firmware can be downloaded to the internal flash memory via the radio clo...

Страница 19: ...e of inadequate replacement of the lithium battery Only identical batteries or batteries recommended by the manufacturer must be used for replacement The waste battery must be disposed as pro posed by...

Страница 20: ...20...

Страница 21: ...Antenna TIME TO SYNCHRO NIZATION one minute with known receiver position and valid almanac 12 minutes if invalid battery buffered memory PULSE OUTPUTS change of second P_SEC TTL level change of minute...

Страница 22: ...1 10 9 10 sec free running 3 10 9 Temperature drift free running 2 10 7 SSB phase noise 10 kHz beside carrier 101 dB Hz 1 kHz beside carrier 76 dB Hz 100 Hz beside carrier 60 dB Hz SERIAL PORTS 2 asyn...

Страница 23: ...575 42 MHz bandwidth 9 MHz CONVERTER local oscillator to converter frequency 10 MHz first IF frequency 35 4 MHz POWER REQUIREMENTS 12V 18V 100mA provided via antenna cable CONNECTOR coax type N female...

Страница 24: ...24 Assembly with CN UB E CN UB 280DC Type N BNC male Type N male Type N male CN UB E 1 5m max Type N male GPS167 Antenna Meinberg GPS As short as possible...

Страница 25: ...hours 00 23 mm minutes 00 59 ss seconds 00 59 or 60 while leap second uv clock status characters u clock has not synchronized after reset space 20h clock has synchronized after reset v different for D...

Страница 26: ...efined below x 0 or 1 corresponding on the number of the capture input _ ASCII space 20h dd mm yy the capture date dd day of month 01 31 mm month 01 12 yy year of the century 00 99 hh mm ss fffffff th...

Страница 27: ...27 Component Layout GPS167PC...

Страница 28: ......

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