help needed with a digital clock

Discussion in 'The Projects Forum' started by kautilya, Feb 6, 2009.

Thread Status:
Not open for further replies.
  1. kautilya

    Thread Starter Active Member

    Apr 26, 2007
    39
    0
    Hi there. i am trying to build a digital clock with seven weekly alarms.one way to do it is to use an OOPIC microprocessor. but i want to do it using only non-programmable digital ICs. can u help me out with it?

    regards
    kautilya
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Think counters and some complexity with setting the count per alarm. Gonna use lots of IC's. Basic digital clock designs in the dozens - it's the daily alarm feature that will be complicated.
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    I think Bill Bowden's design has it. It may just be a timer however.

    http://ourworld.compuserve.com/homepages/Bill_Bowden/

    All you need is a second set of registers for the hours/minutes, and XOR gates. (lotsa gates).

    Here is the block diagram of a typical digital clock.

    [​IMG]
     
Loading...
Thread Status:
Not open for further replies.