10
DESIGN PROBLEMS
This chapter includes a number of design problems that utilize external hardware. The systems are based on typical microprocessors such as the 8085, 8086, and 68000.
The concepts presented can be extended to other microprocessors.
10.1 Design Problem No. 1
10.1.1 Problem Statement
An 8085-based digital voltmeter is designed which will measure a maximum of 5 V DC via an A/D converter and then display the voltage on two BCD displays. The upper display is the integer part (0 to 5 V DC) and the lower display is the fractional part (0.0 to 0.9 V DC).
10.1.2 Objective
A digital voltmeter capable of measuring DC voltage up to and including 5 V will be built and tested. The voltmeter is to be implemented using the Intel 8085 ...
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