Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

display 2digit number in 7-segment

Status
Not open for further replies.

mahshid_2011

Newbie level 5
Joined
May 31, 2011
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,327
Hello
i want to add two number that two number is bigger than 20 and I want to display that in the seven segment with proteuse software

my problem is i cant show 2 digit number in seven segment you can help me ?
I dont want to programming !
 

mahshid_2011

Newbie level 5
Joined
May 31, 2011
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,327
my professer want to design this circuit with proteuse software and without code and programing
full.bmp - 4shared.com - partage de photos - télécharger une image
full.html

in this picture I can add to 1digit and show 1digit number in seven segment
now i want to display two digit number in 7-segment
full.html
 
Last edited:

mvs sarma

Advanced Member level 3
Joined
Apr 23, 2006
Messages
789
Helped
121
Reputation
244
Reaction score
80
Trophy points
1,308
Location
Hyderabad, India.
Activity points
5,580
this could be the configuration. the displays are common anode type. for Proteus they run but when in reality you may need pnp transistor buffers for the common anode drive.
the oscillator using Gate A should be around 25HZ or Higher. the R and C values have to be chosen accordingly.
 

Attachments

  • 2digit display.pdf
    20.6 KB · Views: 16
Last edited:

mvs sarma

Advanced Member level 3
Joined
Apr 23, 2006
Messages
789
Helped
121
Reputation
244
Reaction score
80
Trophy points
1,308
Location
Hyderabad, India.
Activity points
5,580
perhaps it is a Homework on digital logic gates and counters /decoders. the O P clearly stated that he/she has to tdo without code or programming.
 

jimmy_tag

Member level 2
Joined
Jul 19, 2010
Messages
49
Helped
8
Reputation
16
Reaction score
8
Trophy points
1,288
Location
India
Activity points
1,609
you should search for bcd to seven seg decoder IC and interface it to seven seg display then.
 

mahshid_2011

Newbie level 5
Joined
May 31, 2011
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,327
Last edited:

grieblm

Member level 4
Joined
May 7, 2011
Messages
75
Helped
18
Reputation
36
Reaction score
18
Trophy points
1,308
Location
Georgetown, Canada
Activity points
1,734
Just tie the carry bit to the least significant bit of the decoder and ground all the other input bits.
 

mahshid_2011

Newbie level 5
Joined
May 31, 2011
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,327
hi grieblm
I drew the circuit that you say As follows on file attachment
fulladder .jpg
but it doesn't answer and for example it doesn't display 20+20

is the my circuit correct??
 
Last edited:

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top