03-08-2013, 02:43 PM
INTERFACING DAC WITH 8085
AIM:
To interface DAC with 8085 to demonstrate the generation of square, saw tooth and
triangular wave.
APPARATUS REQUIRED:
8085 Trainer Kit
DAC Interface Board
THEORY:
DAC 0800 is an 8 – bit DAC and the output voltage variation is between – 5V and +
5V.The output voltage varies in steps of 10/256 = 0.04 (appx.). The digital data input and
the corresponding output voltages are presented in the Table1.
ALGORITHM:
(a) Square Wave Generation
Load the initial value (00) to Accumulator and move it to DAC
Call the delay program
Load the final value(FF) to accumulator and move it to DAC
Call the delay program.
Repeat Steps 2 to 5
RESULT:
Thus the square, triangular and saw tooth wave form were generated by interfacing
DAC with 8085 trainer kit.