[time-nuts] Shera code

Arnold Tibus arnold.tibus at gmx.de
Sat May 25 16:27:17 EDT 2013

Thank you for these additional informations, Bert !


Am 25.05.2013 21:58, schrieb EWKehren at aol.com:
> Questions have come up on the recent release of the Shera  code. All 
> software commands with the exception of Auto N get lost in case of  power failure. 
> Auto N is stored in EEPROM. After power fail Dip switches take  over. Alpha 
> filter can be activated with software commands or switch #5. #5 can  be DAC 
> Hold or Alpha present compiled code is Alpha. An open switch on #5 is  
> Alpha on. In manual or auto N Alpha is first engaged in filter 4 position. If  
> auto N is enabled and there is a power fail and #5 is open code will run up 
> to  the value selected by the Dip switches and once it reaches 4 enables 
> Alpha  filter. Also some status commands have been added listed below
> Bert Kehren
> ;Status bits  (RS232):
> ;   bits  
> ;   0-7     N value as always
> ;    +10     glitch detected 
> ;    +20     alpha filter actually used 
> ;    +50     alpha filter enabled 
> ;    +100    "unlock" LED on 
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