How to make a divider which takes input from a keypad, decodes it, performs division?

Status
Not open for further replies.

MSRA

Full Member level 2
Joined
Nov 18, 2006
Messages
130
Helped
3
Reputation
6
Reaction score
0
Trophy points
1,296
Location
NED Pakistan
Activity points
2,207
how to make a divider which takes input via keypad decode it perform division and display the result.

Without using mcu and any sort of interfacing..

all from gates,adders,encoder,multiplexer..

Thanks in Advance
 

Re: Divider

Without mcu it will be very hard to read keyboard, and display the result. Lots of logics. The rest is not very hard...
 

Re: Divider

the_edge said:
Without mcu it will be very hard to read keyboard, and display the result. Lots of logics. The rest is not very hard...
Click to expand...

yes i knew that .... and that's b/c i post it here ......
 

Divider

Is this a student project for learning digital design?
Are you inputting and outputting decimal integers, fractions, hex, or what?
How many digits input and output?
What type of hardware chips are you allowed to use?
Wiring up TTL/CMOS chips could be torture. How about implementing your logic in an FPGA, using Verilog or VHDL?
 

Re: Divider

echo47 said:
Is this a student project for learning digital design?
Click to expand...
yes,it is...

Are you inputting and outputting decimal integers, fractions, hex, or what?
Click to expand...
decimal number no fraction just deciamal...

How many digits input and output?
Click to expand...
min 8 bit input ,so there will be max. 17 bit output

What type of hardware chips are you allowed to use?
Click to expand...
just gates,adders,decoder etc all what you have in digital deisign

Wiring up TTL/CMOS chips could be torture. How about implementing your logic in an FPGA, using Verilog or VHDL?
Click to expand...
no not allowed
 

Re: Divider

As far as keypad decoding is concerned, i think it is nearly impossible without using microcontroller....
U can find divider algorithms in digital design books and implement it.... Refer "HDL Chip Design" By Douglas Smith.....
for the display make tables solve maps... not easy but possible.....
 

Divider

Thaks fr yur concern after one one month
 

Re: Divider

Thaks fr yur concern after one one month
Click to expand...
Sir,u r welcome .... i was searching on edaboard when i saw this post thought might be helpful..... so u have solved yr problem...isn't it? would u like to share with us what have u done for the keypad and display.... i m interested in it since i think it's impossible....
waiting for yr reply
 

Divider

so far it is pending still searching for the right way....
as far as divider is concerned i used an algorithm ....
if you are intrested then tell me it will b my pleasure to tell you...
n e wayz thanks for your concern..
 

Re: Divider

yeah sure...
 

Re: Divider

you shoud concern with microcontroller
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…