美国著名IT设备供应制造商凹凸电子软件笔试题
1. Select ONE of the following projects to discuss:
a. Signal Filtering: You are given a sampled realtime waveform consisting
of a sensor reading mixed with highly periodic impulses and high frequency
noise.The desired output is the realtime filtered sensor signal with the
impulses and noise removed, and a readout of the impulse period. The FFT
may not be used.
b. Interrupt Processing.A headware register consisting of eight independent
edge triggered latches is used to record external asynchronous interrupt
requests. When any of the request bits are latched, a software interrupt
is generated. The software may read the latch to see which interrupt(s)
occurred. Writing a one to any latch bit will clear the latch. How does
that software assure that no interrupt request is ever missed?
c. User Interface: a prototype MP3 player interface consisting of a
playlist display and a few control buttons is given to you. How would you
make the interface “skinnable ”,with user selected graphics, options,
and control button placement?
Each project description is incomplete. What questions would you ask
to completely specify the project? What development tools would you prefer
to use? What algorithm /data structures/design would you use?
2. What program(s) have you coded for you own enjoyment (not part of
a school project,not for pay). What type of software project would you most
enjoy working on?
3. Have you participated in a team programming project? What is the
hardest part of programming as a team, as opposed to programming alone?
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