Require circuit diagram

[csr1981]

Hello All,

I have mod-60 counter. Using this circuit i want to generate a waveform.For example when the counter in counting 0 i should get out put as 1 when it counting 1 the output should be 0 when it is counting 2 the output should be 1 when it is counting 3 the output should be 0 ......when it is counting 56 the output should be 1 when it is counting 57 the out put should be 0 whe it is counting 58 output should be 1 when it is counting 59 the output should be 1,
as per the table attached below.

I am planning to use EEPROM but not able to know how to start. Shall i interface the counter output to the address line of the EEPROM? But then how to write the data in the EEPROM?

Request help of you guys.

 

[John Connor]

Not sure if I'm getting it right....
You have a mod-60 counter with 6 output lines b5 b4 b3 b2 b1 b0
if u connect the line b0 to a NOT gate and follow it up with a OR gate
with the other input of OR gate being provided by AND'ing of b1 b3 b4 b5.

 

[csr1981]

Thanks John for the circuit.
However the output of the circuit is not working for me as i want the output to be like the file attached below.

 

[John Connor]

Try this one, might work if you have mod-60 asynchronous counter...

 

[csr1981]

Thanks again John.
The logic worked.
Can you give me the logic to implement the ouput as attached below.

 

[csr1981]

Hello John

Here is the circuit diagram.

 

[John Connor]

You will require a mod 24 counter ,you can make it by using a mod 4 followed by mod 6 counter, and then by selectively gating the input signal every time the counter counts 4 you can get the desired signal.

 

[csr1981]

Well that way i will get only 6 pulses. However i want 6+1 pulses that is 7 pulses. Out of which 6 are equidistant and the +1 is equidistant from 6th pulse.