RTC

MR

Please explain the following code to me so that I can better understand the operation of the RTC.

Also how can I add a 4 digit year instead of a two digit year?

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If it Stinks it is Chemistry
If it is Mushy its Biology
If it doesn't work its Physics

Franklin

What is it you don't understand? you need to store the year as a word to use 4 digits.

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- Stephen

MR

said...
What is it you don't understand? you need to store the year as a word to use 4 digits.

I have tried making year a word it has no effect. The Highbyte is nothing more than zeroes. For example if I want say 2009, only the lowbyte of the word is stored, "09" but the Century and Millennia are never stored in the highbyte portion of the word variable.

said...
LOW 6
DIRD=hours.LOWBYTE.HIGHNIB 'Send Year to Display
PAUSE 1/1200
HIGH 6
GOSUB cl

LOW 5
DIRD=year.LOWBYTE.HIGHNIB 'Send Decade to Display
PAUSE 1/1200
HIGH 5
GOSUB cl

LOW 4
DIRD=year.HIGHBYTE.LOWNIB 'Send Century to Display
PAUSE 1/1200
HIGH 4
GOSUB cl

LOW 3
DIRD=year.HIGHBYTE.HIGHNIB 'Send Millenia to Display
PAUSE 1/1200
HIGH 3
GOSUB cl

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If it Stinks it is Chemistry
If it is Mushy its Biology
If it doesn't work its Physics

Chris Savage

It seems you have multiple threads on this subject which is not allowed on the forums. Please do not cross-post.

http://forums.parallax.com/showthread.php?p=793172

Three other duplicate posts have been removed.

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Chris Savage
Parallax Engineering