[Coco] Clock2 module for LR-Tech Superboard RTC for NitrOS-9

[Gene Heskett]

On Tuesday 05 August 2014 08:09:17 Kip Koon did opine
And Gene did reply:
> Hi NitrOS-9 L2 Experts!
> 
> I'm looking for a Clock2 module to communicate with the Real Time Clock
> on the LR-Tech Superboard.  Has one ever been written?  I'm also
> interested in serial and parallel modules as well.  Any ideas?

Having walked around in that codes precursors a couple decades back, the 
most important bit of info is "which clock chip is it".  Some are ok, some 
are a PITA, and some Just Work(TM).  Two in the PITA category are the ones 
used on the B&B-XT-RTC kits, and the one Tony used on the SC-II+4in1.

The B&B RTC is password protected even just to read the time, and takes 
way too much time since the password is bit shifted into it serially.  
Using it online at 300 baud (and up) caused rzsz to do hundreds of 
restarts and I eventually re-wrote that clock for 2x a day updates from 
the hardware as once a minute was a major PITA.

Then Tony's version is susceptible to powerdown/powerup noises, and needs 
a setime at startup to correct that about half the time.

The clock on the TC^3 is flawless so far in better than a decade.  I think 
I have set it maybe annually, or at DST on/off switches.  Nitros9 needs a 
t-zone file, callable by the clocks alarm function.  But I'd call that one 
as Just Works(TM) anyway.

I have no clue whats on an LR-Tech interface.


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS