SOS : 4-bit binary divider circuit PLEASE!!!!!!!

[kpk]

Can anyone send me a 4-bit binary divider circuit in this email :
kkaranasos@in.gr ? I must make this homework for my university and i
am late.
I have to make this circuit only with NAND gates.

PLEASE HELP !!!!!!!!!

Thanks a lot

 

[Charles M. Elias]

kkaranasos@in.gr (kpk) wrote in message news:<f2753b28.0312310022.7c2153f6@posting.google.com>...

Can anyone send me a 4-bit binary divider circuit in this email :
kkaranasos@in.gr ? I must make this homework for my university and i
am late.
I have to make this circuit only with NAND gates.

PLEASE HELP !!!!!!!!!

Thanks a lot

Sorry,

I don't mind helping someone with homework if they have made a effort
and are stuck. I draw the line when the student submits nothing to
show that he/she has even tried to do the work. The purpose of school
is not to turn in someone else's work--what do you learn from that? I
also have to question the utility of assigning such a problem. I
think the professor is out of touch with reality or is a sadist.
Also, without considerable research, I cannot design such a counter
using only NAND gates--not that I would want to.

Charles

 

[Jim Thompson]

On 31 Dec 2003 09:24:02 -0800, charles.elias@wpafb.af.mil (Charles M.
Elias) wrote:

kkaranasos@in.gr (kpk) wrote in message news:<f2753b28.0312310022.7c2153f6@posting.google.com>...
Can anyone send me a 4-bit binary divider circuit in this email :
kkaranasos@in.gr ? I must make this homework for my university and i
am late.
I have to make this circuit only with NAND gates.

PLEASE HELP !!!!!!!!!

Thanks a lot

Sorry,

I don't mind helping someone with homework if they have made a effort
and are stuck. I draw the line when the student submits nothing to
show that he/she has even tried to do the work. The purpose of school
is not to turn in someone else's work--what do you learn from that? I
also have to question the utility of assigning such a problem. I
think the professor is out of touch with reality or is a sadist.
Also, without considerable research, I cannot design such a counter
using only NAND gates--not that I would want to.

Charles

You can't? Sheeeesh! I'm an analog designer and I can. Ever heard
of master-slave. Takes 9 2-in-nands (one used as an inverter) to make
a D-flop.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

 

[Peter Alfke]

If your homework is too tough,
and the time just flies away,
thinking hard is not enough,
click: comp.arch.fpga.

There you find those friendly souls,
Austin, Philip, Peter, Ray
filling in your knowledge holes,
making problems go away.

But learning is for you to do,
even if it hurts the brain.
The one that has to learn is you.
There is no substitute for pain.

If you want to learn design
don't treat homework just as play.
Real life is not benign,
and you'll have to earn your pay!

sooner or later...

Peter Alfke
(originally posted a few months ago, but bears repeating.)



kpk wrote:

Can anyone send me a 4-bit binary divider circuit in this email :
kkaranasos@in.gr ? I must make this homework for my university and i
am late.
I have to make this circuit only with NAND gates.

PLEASE HELP !!!!!!!!!

Thanks a lot

 

[Peter Alfke]

More constructively,
your professor wants you to:
1. realize that you need four cascaded flip-flops,
2. then "re-invent" the master/slave flip-flop,
which you can also find in old TTL databooks (7474).

Maybe an interesting learning experience,
kind of like the boy-scout test of starting a fire without matches...
Have fun !

Peter Alfke
==============================
Peter Alfke wrote:

If your homework is too tough,
and the time just flies away,
thinking hard is not enough,
click: comp.arch.fpga.

There you find those friendly souls,
Austin, Philip, Peter, Ray
filling in your knowledge holes,
making problems go away.

But learning is for you to do,
even if it hurts the brain.
The one that has to learn is you.
There is no substitute for pain.

If you want to learn design
don't treat homework just as play.
Real life is not benign,
and you'll have to earn your pay!

sooner or later...

Peter Alfke
(originally posted a few months ago, but bears repeating.)

kpk wrote:

Can anyone send me a 4-bit binary divider circuit in this email :
kkaranasos@in.gr ? I must make this homework for my university and i
am late.
I have to make this circuit only with NAND gates.

 

[Pete Fraser]

"Peter Alfke" <Peter.Alfke@xilinx.com> wrote in message
news:3FF318F1.DA8D8FF3@xilinx.com...

More constructively,
your professor wants you to:
1. realize that you need four cascaded flip-flops,
2. then "re-invent" the master/slave flip-flop,
which you can also find in old TTL databooks (7474).

Maybe an interesting learning experience,
kind of like the boy-scout test of starting a fire without matches...

I got thrown out for that.

Potassium Permanganate and glycerine which spontaneously
combusts and gets hot enough to light the Magnesium, which
is hot enough to light the thermite.

I thought it was impressive.

 

[Mac]

On Wed, 31 Dec 2003 00:22:06 +0000, kpk wrote:

Can anyone send me a 4-bit binary divider circuit in this email :
kkaranasos@in.gr ? I must make this homework for my university and i
am late.
I have to make this circuit only with NAND gates.

PLEASE HELP !!!!!!!!!

Thanks a lot

Everbody is assuming that this is a clock divider. But it could be an
arithmetic divider.

Just thought I'd point that out.

Mac

 

[Luhan Monat]

Pete Fraser wrote:

"Peter Alfke" <Peter.Alfke@xilinx.com> wrote in message
news:3FF318F1.DA8D8FF3@xilinx.com...

More constructively,
your professor wants you to:
1. realize that you need four cascaded flip-flops,
2. then "re-invent" the master/slave flip-flop,
which you can also find in old TTL databooks (7474).

Maybe an interesting learning experience,
kind of like the boy-scout test of starting a fire without matches...


I got thrown out for that.

Potassium Permanganate and glycerine which spontaneously
combusts and gets hot enough to light the Magnesium, which
is hot enough to light the thermite.

I thought it was impressive.


Hey, how about amonium-tri-iodide? 15 molar amonia and iodine crystals.

Make a slurry but dont let it dry out until you want it to explode.
(we had a lot of fun painting this stuff in dorm-room locks)

--
Luhan Monat, "LuhanKnows" At 'Yahoo' dot 'Com'
http://members.cox.net/berniekm
"The future is not what it used to be."

 

[Ben Bradley]

Jim Thompson <invalid@invalid.invalid> responded to a deperate
crosspost initiated by kkaranasos@in.gr (kpk) involving:
comp.lang.vhdl,
comp.arch.arithmetic,
comp.arch.fpga,
sci.electronics.design, and
comp.lang.verilog thusly:

On 31 Dec 2003 09:24:02 -0800, charles.elias@wpafb.af.mil (Charles M.
Elias) wrote:

kkaranasos@in.gr (kpk) wrote in message news:<f2753b28.0312310022.7c2153f6@posting.google.com>...
Can anyone send me a 4-bit binary divider circuit in this email :
kkaranasos@in.gr ? I must make this homework for my university and i
am late.

An honest request for the answer to a homework assignment - I don't
think I've ever seen this before!

I have to make this circuit only with NAND gates.

PLEASE HELP !!!!!!!!!

Thanks a lot

Sorry,

I don't mind helping someone with homework if they have made a effort
and are stuck. I draw the line when the student submits nothing to
show that he/she has even tried to do the work. The purpose of school
is not to turn in someone else's work--what do you learn from that?

He learns, at a low level, how to cheat the system. Of course if
there's anywhere that the phrase "you're only cheating yourself"
totally applies, it's in school.

I
also have to question the utility of assigning such a problem.

Perhaps it reinforces the concept that you can build any logic
device out of a sufficient number of NAND (or NOR) gates?

I
think the professor is out of touch with reality or is a sadist.

That's surely true of some professors, but how can you tell that
just from what the OP said?

Also, without considerable research, I cannot design such a counter
using only NAND gates--not that I would want to.

As Jim said, it's not a big deal at all. Would you rather use
LM339's?

Charles

You can't? Sheeeesh! I'm an analog designer and I can. Ever heard
of master-slave. Takes 9 2-in-nands (one used as an inverter) to make
a D-flop.

I don't know if I'd have the patience to spend three minutes doing
it when I know I could get a schematic that I could easily convert to
all-NAND-all-the-time off a (don't tell the OP) "d-a-t-a s-h-e-e-t" in
less time than that.

...Jim Thompson

Bonus question(s): How many 74(xxx)00's (quad nand gate) does it
take to make the 4-bit divider using Jim's solution, and why is "12"
an incorrect answer?
-----
http://mindspring.com/~benbradley

 

[Brian Inglis]

On Wed, 31 Dec 2003 11:26:14 -0800 in comp.arch.arithmetic, "Pete
Fraser" <pete@rgb.com> wrote:

"Peter Alfke" <Peter.Alfke@xilinx.com> wrote in message
news:3FF318F1.DA8D8FF3@xilinx.com...
More constructively,
your professor wants you to:
1. realize that you need four cascaded flip-flops,
2. then "re-invent" the master/slave flip-flop,
which you can also find in old TTL databooks (7474).

Maybe an interesting learning experience,
kind of like the boy-scout test of starting a fire without matches...

I got thrown out for that.

Potassium Permanganate and glycerine which spontaneously
combusts and gets hot enough to light the Magnesium, which
is hot enough to light the thermite.

I thought it was impressive.

The establishment doesn't always like creative types -- did you demo
it or just explain it?

--
Thanks. Take care, Brian Inglis Calgary, Alberta, Canada

Brian.Inglis@CSi.com (Brian dot Inglis at SystematicSw dot ab dot ca)
fake address use address above to reply

 

[Wouter van Ooijen (www.vo]

I draw the line when the student submits nothing to
show that he/she has even tried to do the work. The purpose of school
is not to turn in someone else's work--what do you learn from that?

How to be a manager?

I

also have to question the utility of assigning such a problem. I
think the professor is out of touch with reality or is a sadist.
Also, without considerable research, I cannot design such a counter
using only NAND gates--not that I would want to.

counter? the OP asked for a multiplier. I could very well imagine
asking a sketch of a multiplier with an estimate of the amount of
gates involved. An easy solution would be a total 8->256 decoder
followed by a 256->5 encoder.


Wouter van Ooijen

-- ------------------------------------
http://www.voti.nl
PICmicro chips, programmers, consulting

 

[Tweetldee]

"Wouter van Ooijen (www.voti.nl)" <wouter@voti.nl> wrote in message
news:3ff3c9cd.1463913656@news.xs4all.nl...

I draw the line when the student submits nothing to
show that he/she has even tried to do the work. The purpose of school
is not to turn in someone else's work--what do you learn from that?

How to be a manager?

I also have to question the utility of assigning such a problem. I
think the professor is out of touch with reality or is a sadist.
Also, without considerable research, I cannot design such a counter
using only NAND gates--not that I would want to.

counter? the OP asked for a multiplier. I could very well imagine
asking a sketch of a multiplier with an estimate of the amount of
gates involved. An easy solution would be a total 8->256 decoder
followed by a 256->5 encoder.

Wouter van Ooijen

Ummm take a look at the subject line of this thread.. the OP asked for a
4-bit binary divider... 4 R-S flipflops in a chain.. no need for decoders
(or maybe I missed something in a later post).
--
Tweetldee
Tweetldee at att dot net (Just subsitute the appropriate characters in the
address)

Never take a laxative and a sleeping pill at the same time!!

 

[Wouter van Ooijen (www.vo]

Ummm take a look at the subject line of this thread.. the OP asked for a
4-bit binary divider... 4 R-S flipflops in a chain.. no need for decoders
(or maybe I missed something in a later post).

Sorry, I mixed multiply and divide But are you sure he meant a
clock divider? It could also be a binary ALU-style divider.


Wouter van Ooijen

-- ------------------------------------
http://www.voti.nl
PICmicro chips, programmers, consulting

 

[DJ]

On 31 Dec 2003 00:22:06 -0800, kkaranasos@in.gr (kpk) wrote:

Can anyone send me a 4-bit binary divider circuit in this email :
kkaranasos@in.gr ? I must make this homework for my university and i
am late.
I have to make this circuit only with NAND gates.

PLEASE HELP !!!!!!!!!

Thanks a lot

If I were your prof, and I caught you blatantly trying to get others to do your
thinking for you, I'd make you design it using nothing but BC547's, resistors
and diodes. That way you might l-e-a-r-n something. That is why you are at uni?

dj

 

[Kolja Sulimma]

kkaranasos@in.gr (kpk) wrote in message news:<f2753b28.0312310022.7c2153f6@posting.google.com>...

Can anyone send me a 4-bit binary divider circuit in this email :
kkaranasos@in.gr ? I must make this homework for my university and i
am late.
I have to make this circuit only with NAND gates.

Your university probably has a synthesis tool for asics installed.
Just write your design in VHDL, remove all gates from the library but
the NAND gates and press the synthesis button.

Kolja Sulimma

Peter:
Applause for the poem....

 

[Ben Bradley]

In sci.electronics.design, wouter@voti.nl (Wouter van Ooijen
(www.voti.nl)) wrote:

Ummm take a look at the subject line of this thread.. the OP asked for a
4-bit binary divider... 4 R-S flipflops in a chain.. no need for decoders
(or maybe I missed something in a later post).

Sorry, I mixed multiply and divide But are you sure he meant a
clock divider? It could also be a binary ALU-style divider.

But you can do that with nothing but NAND gates, too.

Wouter van Ooijen

-- ------------------------------------
http://www.voti.nl
PICmicro chips, programmers, consulting

-----
http://mindspring.com/~benbradley

 

[Jerry]

WOW, your prof let you use NANDs? we had to do this using only
relays. Wish I had an easy prof like yours.

&gt

Jer

"Kolja Sulimma" <news@sulimma.de> wrote in message
news:b890a7a.0401010514.18392ca@posting.google.com...

kkaranasos@in.gr (kpk) wrote in message
news:<f2753b28.0312310022.7c2153f6@posting.google.com>...
Can anyone send me a 4-bit binary divider circuit in this email :
kkaranasos@in.gr ? I must make this homework for my university and i
am late.
I have to make this circuit only with NAND gates.

Your university probably has a synthesis tool for asics installed.
Just write your design in VHDL, remove all gates from the library but
the NAND gates and press the synthesis button.

Kolja Sulimma

Peter:
Applause for the poem....

 

[Bob Perlman]

On Thu, 1 Jan 2004 17:17:38 -0500, "Jerry" <nospam@nowhere.com> wrote:

WOW, your prof let you use NANDs? we had to do this using only
relays. Wish I had an easy prof like yours.

&gt

Jer

Hah! Luxury! When I was a boy, Professor Babbage made us use gears
and levers! Compared to that experience, designing with today's EDA
tools seems...well, pretty much the same, actually.

Bob Perlman
Cambrian Design Works

 

[Spehro Pefhany]

On Thu, 01 Jan 2004 22:53:26 GMT, the renowned Bob Perlman
<bobsrefusebin@hotmail.com> wrote:

On Thu, 1 Jan 2004 17:17:38 -0500, "Jerry" <nospam@nowhere.com> wrote:

WOW, your prof let you use NANDs? we had to do this using only
relays. Wish I had an easy prof like yours.

&gt

Jer

Hah! Luxury! When I was a boy, Professor Babbage made us use gears
and levers! Compared to that experience, designing with today's EDA
tools seems...well, pretty much the same, actually.

Bob Perlman
Cambrian Design Works

You had gears and levers? We would have given our right arms for gears
and levers! Cowrie shells was what we had, and were glad for it.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

 

[Keith R. Williams]

In article <9d99vv0o606si8gvj10cgrsu35k1n011c4@4ax.com>,
bobsrefusebin@hotmail.com says...

On Thu, 1 Jan 2004 17:17:38 -0500, "Jerry" <nospam@nowhere.com> wrote:

WOW, your prof let you use NANDs? we had to do this using only
relays. Wish I had an easy prof like yours.

&gt

Jer

Hah! Luxury! When I was a boy, Professor Babbage made us use gears
and levers! Compared to that experience, designing with today's EDA
tools seems...well, pretty much the same, actually.

Gag, spit, choke. Damn! Don't *do* that! Now I gotta clean of
my monitor, again.

--
Keith