Digital System Projects Using HDL Questions and Answers

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Showing 10 of 58 questions
Q11
In an HDL stepper motor design, why is there more than one mode?
  • A To change the speed of the stepper motor
  • B To change the direction of the stepper motor
  • C To direct drive the stepper motor
  • D All of the above
Answer: Option D
Q12
Which is not a major block of an HDL frequency counter?
  • A Display register
  • B Decoder/display
  • C Timing and control unit
  • D Bit shifter
Answer: Option D
Q13
In a full-step sequence involving two flip-flops driving four coils of a stepper motor, how far will the stepper motor step?
  • A 90°
  • B 45°
  • C 30°
  • D 15°
Answer: Option D
Q14
Which is not a step used to define the scope of an HDL project?
  • A Are the inputs and outputs active HIGH or active LOW?
  • B A clear vision of how to make each block work
  • C What are the speed requirements?
  • D How many bits of data are needed?
Answer: Option B
Q15
In the digital clock project, what is the frequency of the MOD-6 counter in the minutes section?
  • A 1 pulse per minute
  • B 6 pulses per minute
  • C 10 pulses per minute
  • D 1 pulse per hour
Answer: Option D
Q16
Why should a real hardware functional test be performed on the HDL stepper motor design?
  • A To check the speed of the software
  • B To check the current levels in the motor
  • C To check the voltage levels of the real outputs
  • D To provide a fully operational system
Answer: Option A
Q17
What does the major block of an HDL code emulation of a keypad include?
  • A A sequencer
  • B A clock
  • C A multiplexer
  • D A ring counter
Answer: Option D
Q18
The accuracy of the frequency counter depends on the:
  • A system clock frequency.
  • B number of displayed digits.
  • C sampling rate.
  • D display update rate.
Answer: Option A
Q19
In the frequency counter, if the clock generator produces a 100 kHz system clock signal, how many decade counters are required to measure 1 Hz?
  • A 6
  • B 5
  • C 4
  • D 3
Answer: Option B
Q20
What must a stepper motor HDL application include?
  • A Variables and processes
  • B Types and bits
  • C Counters and decoders
  • D Sequencers and multiplexers
Answer: Option C

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