Help on simple project with 8086 microprocessor using ppi chip and 7-segment display

Thread Starter


Joined Dec 14, 2008
I am trying to come up with a simple project using the ppi chip and the 7-segment display. Thought of doing just a 60sec countdown timer using two 7-segment display and a ppi chip. Can i get help with the assemble code for that. thanks


Joined Jul 17, 2007
Nothing's simple with an 8086 uP. You'd need a whole host of support IC's.

If you want something simple, you need to go to a microcontroller like a PIC, Atmel AVR, Basic Stamp, or whatever floats your boat.

"PPI chip" isn't very helpful.


Joined Apr 20, 2004
If it's an 8086, you will need all kinds of support to get it to run - RAM and ROM memory, several interface IC's. For what you're after, a PIC or AVR microcontroller would be way less trouble.

For a countdown timer, a 555 plus a couple of counters would be the simplest way to go.