I have designed - well at least in my head - a cmos version of what I
proposed to do with the oopic ...
I'll use three 4017 decade counters - input the 625 Hz into 4017#1
which will count 0-9 and its /10 output will be the input for 4017#2
...
output '0' of both 4017 #1 and 4017#2 will feed an '&' operator that
will give the first division - also output '3' of 4017#1 and output
'1' of 4017#2 will feed another '&' operator for the second division -
then output '5' of 4017#1 and output '2' of 4017#2 will feed yet
another '&' operator which will reset the two units - hence I get my
1-13 (or 13-25 if you want) division 12-13-12-13-
The first two '&'s (not the reset one) will feed an 'or' gate that
feeds yet another 4017 (#3)whose '4' output resets itself - hence the
4 part fan-out/division
I hope that makes sense ! and yeh, I've need to draw it to get my
0-9 vs. 1-10 numbers sorted properly and not confused as they probably
are at this stage...
fizz,
Nick
(cheers for your help so far)
go team biopace!
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