| T.R | Title | User | Personal Name
 | Date | Lines | 
|---|
| 815.1 | Add-on boards | KALKI::LANG |  | Mon Apr 02 1990 06:02 | 3 | 
|  |     I don't know about modifying a 520ST, however, there are a few vendors
    of add-on boards with lithium battery backup for the clock chips.
    Software loads the "board time" into the atari at boot time.
 | 
| 815.2 | cheap: keyboard processor time | MGOI03::FALKENSTEIN |  | Mon Apr 02 1990 06:48 | 10 | 
|  |     
    You may buffer the clock in your keyboard processor with some 
    rechargable batteries and a small circuit to recharge them when
    power is on. On every power-up the keyboard clock time then must
    be loaded to the system via a little program in the auto-folder.
    This is the cheapest solution, but accuracy isn't that good (good
    for about 3 weeks, then you have to reset the time).
    
    Bernd
    
 | 
| 815.3 |  | PRNSYS::LOMICKAJ | Jeffrey A. Lomicka | Mon Apr 02 1990 11:14 | 3 | 
|  | There's also "Z-TIME" (about $40, U.S.) and the ICD host adaptor for the
hard disk includes a non-volitale clock.
 | 
| 815.4 | FORGET-ME-CLOCK | LYOIS2::FERRAND | de CLERMONT.....(�v�) | Mon Apr 23 1990 11:56 | 6 | 
|  |     Hello BILL,
    
    You have also "FORGET-ME-CLOCK" which plugs in the cartridge port
    and authorizes another cartridge in it . (About 400 FF)
    
    Ren�
 | 
| 815.5 | st schematics required | KERNEL::ROBB |  | Sun May 31 1992 12:47 | 17 | 
|  | Has anyone got a set of atari prints they could let
me have a copy of?
I connected the battery backup as in this
article. (schematic kindly supplied by Bernd)
The problem I have is that the battery only keeps the time
for a day even on fully charged batteries.
I would like to do a little troubleshooting before
I give up on it and spend some money on a plug in
clock.
    
Ken Robb.
    
 | 
| 815.6 | depends... | UFRCS2::FALKENSTEIN |  | Wed Jun 03 1992 16:56 | 6 | 
|  |     
    what Atari is it ?
    
    Bernd
    
    
 | 
| 815.7 | It's an STE | COMICS::ROBB |  | Thu Jun 04 1992 06:41 | 6 | 
|  |     Bernd,
    
    It's an STE but I guess most, including the keyboard, will be the same
    as the ST FM.
    
    Ken 
 | 
| 815.8 | you might be lucky | UFHIS::BFALKENSTEIN |  | Thu Jun 04 1992 07:51 | 7 | 
|  |     
    I'll take a look next week, and if I find STE or keyboard schematics,
    I'll send a copy...
    
    Bernd
    
    
 | 
| 815.9 | thanks | COMICS::ROBB |  | Fri Jun 05 1992 09:55 | 3 | 
|  |     Many thanks Bernd.
    
    Ken
 | 
| 815.10 | Could I have this please? | TIMMII::RDAVIES | An expert Amateur | Mon Jun 22 1992 08:14 | 10 | 
|  |     Bernd, Can you send me the information you have on the Keyboard Clock
    support battery?.
    
    Electronically I'm as above, or you can copy to TIMMII""::
    
    Internal Mail I'm Richard H Davies @REO2 FB2
    FAX I'm on (+44)734 203254
    
    Thanks,
    Richard Davies
 | 
| 815.11 | busy in the moment | UFHIS::BFALKENSTEIN |  | Tue Jun 23 1992 02:38 | 7 | 
|  |     
    Richard, I'm out this week so I'll get you the hardcopies per FAX or
    internal mail next week (sorry, no online stuff...)
    
    Bernd
    
    
 |