Hi,
I am supposed to make a counter that makes this pattern:
0, 8, 9, 10, 11, 12, 13, 7, 8, 9....
Starts at 0, jumps to 8, counts until 13 and then goes to 7, and so forth.
Here is the design I come up with in Microcap
This was the truth table:
and the equations I came up with are:
B3= S3.S2.S0 + !S3.!S0
B2 = 0
B1 = S3.S2.S0
B0 = S3.!S0 + S3.!S2 + S1
Here is what happens when I put it to test
I suppose this is a bug in Microcap or something, since the same thing happened when I tested the reference design given by the professor.
I have yet to build it since I am missing a par components that I'll buy tomorrow, but since I'm time constrained I'm asking now whether someone can see an error in the design.
For reference, here's the reference given:
Starts 0, goes to 9, counts to 10, goes back to 7 and so forth. 0, 9, 10, 7, 8, 9 ,10, 7...
I'm also supposed to make a decade counter, but Ive yet to design it, but I'd guess that making it so that when it reaches 10(1010) it lights up the clear, therefore starting again at 0, am I right?
Thank you for your help
I am supposed to make a counter that makes this pattern:
0, 8, 9, 10, 11, 12, 13, 7, 8, 9....
Starts at 0, jumps to 8, counts until 13 and then goes to 7, and so forth.
Here is the design I come up with in Microcap
This was the truth table:
and the equations I came up with are:
B3= S3.S2.S0 + !S3.!S0
B2 = 0
B1 = S3.S2.S0
B0 = S3.!S0 + S3.!S2 + S1
Here is what happens when I put it to test
I suppose this is a bug in Microcap or something, since the same thing happened when I tested the reference design given by the professor.
I have yet to build it since I am missing a par components that I'll buy tomorrow, but since I'm time constrained I'm asking now whether someone can see an error in the design.
For reference, here's the reference given:
Starts 0, goes to 9, counts to 10, goes back to 7 and so forth. 0, 9, 10, 7, 8, 9 ,10, 7...
I'm also supposed to make a decade counter, but Ive yet to design it, but I'd guess that making it so that when it reaches 10(1010) it lights up the clear, therefore starting again at 0, am I right?
Thank you for your help