Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics 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.

seven segment display

Status
Not open for further replies.

dayal

Member level 3
Joined
Aug 26, 2007
Messages
54
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,629
Hi ,

i am using 4 seven segment display along with 8051 microcontroller, and i am using port 0 for display, how i can display 4 digit value instantely,using Embedded c program ,now i can display single 7 segment display only for one digit,using 74LS145 AND 74LS245, would like to display multiple digit at time,,can anyone help me.
 

hamed_sotoudi

Full Member level 3
Joined
Aug 1, 2007
Messages
158
Helped
15
Reputation
30
Reaction score
4
Trophy points
1,298
Location
Germany Hamburg
Activity points
2,207
Hi
u should use a shift register fir every seven segment then shift your data to them.

Added after 3 minutes:

and u can use your decoder with 4 parallel registers every time u should select one of the registers with your decoder and put your data from port 0 to that register.in this way connect port 0 to every register.
 

RDRyan

Full Member level 2
Joined
May 24, 2007
Messages
133
Helped
20
Reputation
40
Reaction score
3
Trophy points
1,298
Location
China
Activity points
1,976
This condition refers to dynamic displaying. the display step is like this:
1. for one time, you can select one seven segment, and put your digit to it, then wait for a moment (< 0.1/4 s)
2.and then, you can select another seven segment, and do the same thing as the first one.
3. repeat the same operation for the remain two.
4. After 3, repeat the hole step from 1 to 3. and Loop.


Ryan
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top