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12 hours digital clock again.. (am/pm indicator)

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seyraj

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hi to all i'm new here..

i need your help..

my clock is already working.. it reset to 00:00:00 after 11:59:59..
my only problem is how can i put an indicator of am/pm??
i am using the logic gates or the 74lsxx ics (47, 93, 08, 32).
 
you can put a toggle flip-flip clocked by the reset signal you mentioned. The flipflop output is the am/pm.
 
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