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Rtc module on serial com3 port

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  • Chuck(G)
    replied
    There are tons of text editors around. QEDIT and VEDIT were particularly good, but even non-document mode in Wordstar works fine.

    Leave a comment:


  • Robin4
    replied
    i can confirm that the RTC working great..

    I red the included manual, the guy has wroten it. But he mentioned it that that clock file have a name that is called clock.com
    But there isnt a clock.com file. So thats made me confused a little bit, what file to use to program the clock..
    It is indeed the clock.exe file..

    Its programmed if you use:

    mm/dd/yy for the date HH:MM:SS for the time and you also can set the day: MO, TU, WE, TH, FR, SA, SU..

    It can be configured seperaly.. (the year is optional, and not needed to set if it was set good)

    I only think, diagnostic programs cant detect this RTC clock upgrade. But need to test that.. Now iam going to check EDLIN program would work..

    Isnt there any norton utility that could edit autoexec.bat and config.sys, because i dont like to swap the files from computer to computer.. I only want to edit it on the same NEC V20 computer.. that is more easier for me..

    Leave a comment:


  • Chuck(G)
    replied
    Originally posted by paul.brett View Post
    Instead of Edit, you would edit the autoexec with the Edlin program. It is not intuitive, and if you can it might be easier to edit the file on your modern machine (assuming once again, that you can copy back and forth).
    Alternatively, you might try:

    ECHO C:\MYCLOCK\CLOCK >>AUTOEXEC.BAT

    Which would append the line to the end of the AUTOEXEC.BAT file.

    Leave a comment:


  • paul.brett
    replied
    The clock.exe (not .com) is in the zip file on the webpage linked above - http://www.brutman.com/PCjr/DS1216E.html.

    You will need a way to copy this file from a modern machine to your vintage one.

    Instead of Edit, you would edit the autoexec with the Edlin program. It is not intuitive, and if you can it might be easier to edit the file on your modern machine (assuming once again, that you can copy back and forth).

    Leave a comment:


  • Robin4
    replied
    I have runned TESTCLK.com and it seems to working..

    But i dont have the CLOCK.COM program that mentioned here. Because iam using Compaq MS-DOS 3.31 REV G and it seems it doesnt have clock.com in it.. Maybe on the installation diskettes, but not in the C:\DOS directory.. Its only have clock.sys file / program..

    And i dont have EDIT.COM in COMPAQ DOS 3.31.. So i dont know how the edit does..

    Leave a comment:


  • Chuck(G)
    replied
    Easy.

    I don't know where on your hard drive you copied CLOCK.COM, but let's say you put it in C:\MYCLOCK

    You simply add a line (using EDIT or whatever text editor you have handy) to AUTOEXEC.BAT that says:

    C:\MYCLOCK\CLOCK

    That's it!

    Leave a comment:


  • Robin4
    replied
    I received the RTC unit.. I want to try it out..

    Software Installation
    Here is the link to DS1216E.ZIP.

    Boot the machine to DOS and run the TESTCLK.EXE program. This will ensure that the DS 1216E can be found and programmed.

    Next, use the DOS software to set the current date and time on the DS 1216E chip, and add the software to your AUTOEXEC.BAT file. The program is called CLOCK.COM, and it does not stay resident in memory.

    If you change the date and time using the DOS DATE and TIME commands, it will *not* update the DS1216E - you need to use CLOCK.COM to update the DS 1216E. However, you should not have to do this often.

    An alternative design for the software would have been a device driver that stays resident and integrates with the DOS DATE and TIME commands. I generally don't like that approach, as you rarely want to set the date and time - you are more interested in reading it at bootup.
    It says i need to use TESTCLOCK.COM the see if it could work and been programmed..

    But

    Next, use the DOS software to set the current date and time on the DS 1216E chip, and add the software to your AUTOEXEC.BAT file. The program is called CLOCK.COM, and it does not stay resident in memory.

    How do i setup it in the autoexec.bat?? What line do i need to add to autoexec.bat..?

    Leave a comment:


  • Robin4
    replied
    No problem. Ill try that one from ebay out. Few month later i always can buy from maxim..
    First want to know if this device is the solution iam looking for.. I only can try it out and hoping is the right solution..

    Leave a comment:


  • Chuck(G)
    replied
    Maybe more than a few yeaars, from Maxim AN505:

    In addition, many of the Maxim modules incorporate a "Sleep Mode" function that isolates the battery until system power is first applied. This feature allows the module products to be assembled and fully tested; the electrical load is then removed from the battery. Thus, the parts can be left in inventory for an extended period without removing any charge from the battery.
    And, from the DS1216 datasheet:

    Each DS1216 is shipped from Maxim with its lithium energy source disconnected, ensuring full energy
    capacity. When VCC is first applied at a level greater than the lithium energy source is enabled for battery-
    backup operation.
    The biggest danger is that you're not buying a "new" module. But the listing says "new", so if the seller is telling the truth, you're fine.

    Leave a comment:


  • ibmapc
    replied
    Originally posted by Robin4 View Post
    EDIT:

    YOU GUYS ARE FREAKIN GOOD!! RTC problem solved i hope.. I ordered it on ebay.. (was much easier then buy it from a foreign company..)
    OOPS, I guess I was to slow. I didn't see your last edit untill after I left my previous post. Hopefully you have at least a few years of battery life in that one.

    Leave a comment:


  • ibmapc
    replied
    Yes, That's the same thing. But if you zoom in on the date code, it reads 9112, which means that it was made the 12th week of 1991. Now the device is designed so that the battery is not "connected" untill the first time it is powered up. So, if the unit is brand new, as the seller say's, the battery probably isn't dead. But after sitting around for 21 years, I don't think it would have a whole lot of life left in it. That's why I bought mine from Maxim (on Chuck(G)'s recomendation). The one that I bought recently was a replacement for one that I bought in 1985 or 86. So that one's battery lasted 24 or 25 years!
    Last edited by ibmapc; February 1, 2012, 05:11 PM.

    Leave a comment:


  • Robin4
    replied
    Is this the item on ebay? http://www.ebay.com/itm/250447134773...84.m1438.l2649

    Because he call it Smartwatch..

    EDIT:

    YOU GUYS ARE FREAKIN GOOD!! RTC problem solved i hope.. I ordered it on ebay.. (was much easier then buy it from a foreign company..)

    Leave a comment:


  • ibmapc
    replied
    Originally posted by Robin4 View Post
    Is this the same device:

    http://www.brutman.com/PCjr/DS1216E.html

    Only one IC chip??
    Yes, That's the one. Although, the software that he refers to is somewhat touchy. I believe the software that I use is a little easier to work with, because it doesn't care which ROM socket the "No-SLot-Clock" is in.

    Leave a comment:


  • MikeS
    replied
    Originally posted by Robin4 View Post
    Is this the same device:

    http://www.brutman.com/PCjr/DS1216E.html

    Only one IC chip??
    Yup, one chip in a special pass-through socket.

    FWIW, I think the Juko board (and most, if not all, the clones) uses 28-pin ROMs so you should be OK, but in a PC (or XT?) with 24-pin ROMs you'd need an adapter and a replacement EPROM; I don't think the SmartWatch comes in a 24-pin version.

    Leave a comment:


  • Robin4
    replied
    Is this the same device:

    http://www.brutman.com/PCjr/DS1216E.html

    Only one IC chip??

    Leave a comment:

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