Frequency Counter Design

Thread Starter

IEEE

Joined Oct 27, 2007
4
hi all

i have a homework to design a frequency counter as follows:

1- The design must have a keypad as an input,and seven segment to display the frequency on it(output).
2-The input wave could be square,sin wave....
3- I must use concepts of 8088,8255,8254 in designing the counter
4-Microcontrollers or ready IC's are not allowed in the design
5-In the final report i should show the design with comments,flowchart,and the assembly code used to run it.

I am not too much into microprocessor interface so if anyone can help me it will be great..

THX
 

hgmjr

Joined Jan 28, 2005
9,029
What does your circuit look like so far? Post your diagram here. Maybe we can guide you through the rest of the design.

hgmjr
 

Thread Starter

IEEE

Joined Oct 27, 2007
4
i really didnt make a circuit yet,actually computer engineering is not my major,so i dont know how to start,can you guide me on ideas how to choose a good circuit to work?
thank u for ur fast reply
 

hgmjr

Joined Jan 28, 2005
9,029
The block diagram is a good beginning. Don't forget to account for the power supply.

Now you can begin to take a stab at designing each of the blocks you have indicated in your diagram.

hgmjr
 

beenthere

Joined Apr 20, 2004
15,819
It's pretty simple to make one with a timebase, some logic, and some counters.

School projects are supposed to be instructive, though. This is a not-too-terribly-difficult project that will teach hardware functions, I/O, and programming. Too bad it's a stinky 8088 instead of a 6502 or a 6800.
 
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