Up counter - Shift register - Electronic Circuits Projects Diagrams Free

ico2 · 19th February 2007, 12:00 PM

How would I transfer a number from an up-counter into a shift register?
(shift register made from D types).

I need the number in a shift register as I do some wierd stuff to it next to compare it with another.

I don't know how to use a microcontroller yet, so I cannot use one in this project.

ericgibbs · 19th February 2007, 12:46 PM

hi ico,

Assuming the Up counter has parallel outputs of the 4/8 bits and assuming the Shift register has a parallel load option.
If its made up of 'D' type FF's then it has the equivalent, the 'D' inputs.

Just connect the outputs from the Counter to the respective input 'D' bits of the Shift register.
Generate a clock/para load pulse into the Shift reg to load the Counter into the Shift reg.

Is this what you mean ico ?
Do you have a drawing of your circuit?

EricG

ico2 · 19th February 2007, 01:07 PM

Thanks, I think I can do that. Trying it out in croc clips now

ico2 · 19th February 2007, 02:13 PM

dwg?
sorry, acronym not understood :s

ico2 · 19th February 2007, 03:14 PM

Got this circuit working now

Thanks !!!

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19th February 2007, 12:00 PM	(permalink)
ico2	Up counter - Shift register How would I transfer a number from an up-counter into a shift register? (shift register made from D types). I need the number in a shift register as I do some wierd stuff to it next to compare it with another. I don't know how to use a microcontroller yet, so I cannot use one in this project.

19th February 2007, 12:46 PM	(permalink)
ericgibbs	hi ico, Assuming the Up counter has parallel outputs of the 4/8 bits and assuming the Shift register has a parallel load option. If its made up of 'D' type FF's then it has the equivalent, the 'D' inputs. Just connect the outputs from the Counter to the respective input 'D' bits of the Shift register. Generate a clock/para load pulse into the Shift reg to load the Counter into the Shift reg. Is this what you mean ico ? Do you have a drawing of your circuit? EricG Last edited by ericgibbs; 19th February 2007 at 02:23 PM.

19th February 2007, 01:07 PM	(permalink)
ico2	Thanks, I think I can do that. Trying it out in croc clips now

19th February 2007, 02:13 PM	(permalink)
ico2	dwg? sorry, acronym not understood :s

19th February 2007, 03:14 PM	(permalink)
ico2	Got this circuit working now Thanks !!!