Re: Need to generate sequence 001, 010, 100, 001, 010, 100, ...

On Mon, 28 Apr 2008 12:38:37 -0700 (PDT), "jalbers@xxxxxxx"
<jalbers@xxxxxxx> wrote:

I am looking for the simplest collection of logic chips that would
produce the sequence 001, 010, 100, 001, 010, 100, ...

I know that a PIC could be programemd to do this.

Any help would be greatly appreciated. Thanks


If you don't care about startup states, I think this clears itself in
3 clocks max: (View in Courier)

B-------------+----------->B
+-------Y NOR |
| A--+----------|----------->A
| | |
| +----+ | +----+ | +----+
+-----|D Q|--+--|D Q|--+--|D Q|--->C
| | | | | |
CLK>--+--|> | +--|> | +--|> |
| +----+ | +----+ | +----+ C B A
+----------+----------+ --+-+--
0 0 1
0 1 0
1 0 0
0 0 1

JF
.