How to control the realtime clock in Mega128

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PaulC
Posts: 100
Joined: 03 Oct 2007 15:15
Location: Ireland

How to control the realtime clock in Mega128

#1 Post by PaulC » 06 Mar 2008 22:24

How to control the realtime clock in Mega128.
I want an interupt every "Real" second
so can setup and read time on glcd display...
does it use interupts..
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milan
mikroElektronika team
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Joined: 04 May 2006 16:36
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#2 Post by milan » 10 Mar 2008 15:26

Hi,

If you use mikroElektronika's RTC extra board
you can use interrupts, see schematics on this page
http://www.mikroe.com/en/tools/rtc/

The schematics wasn't updated, sorry.
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PaulC
Posts: 100
Joined: 03 Oct 2007 15:15
Location: Ireland

hi milan

#3 Post by PaulC » 10 Mar 2008 19:44

hi milan thanks for the reply..
i have already bought four of these rtc...
changed two for atmega i.e. resistors..,.
nicely made...
just wandered if the atmega has a built in clock/counter...
as via 32 khz crystal, and internal 8mhz for program...
just not sure...
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