Quiz3F06sol - EE319K Fall 2006 Quiz 3A Solution Page 1...

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EE319K Fall 2006 Quiz 3A Solution Page 1 Jonathan W. Valvano December 1, 2006 10:00am-10:50am First:________________ Middle Initial: _____ Last:____ Solution _____ This is a closed book exam. You must put your answers on this piece of paper only. You have 50 minutes, so allocate your time accordingly. Please read the entire quiz before starting. (5) Question 1. $56 (5) Question 2. $3900 wrap (5) Question 3. X=> 0 data 0 1 Old X 3 Return address 5 in (5) Question 4. 5 (5) Question 5. R1 = (5-2.5-0.5V)/0.001A = 2000 Ω = 2 k Ω (5) Question 6. C) The I bit in the CCR is clear D) The software arms the interrupt (e.g., RTIE=1) G) The hardware sets the flag bit (e.g., RTIF=1) (5) Question 7. Resolution = range/precision = 20V/1023 20mV (5) Question 8. The first guess is half way in between 0 and 5V E) 2.5 V (5) Question 9. C) This ISR did not acknowledge the interrupt (clear RTIF), so it will interrupt over and over continuously. (15) Question 10.
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Quiz3F06sol - EE319K Fall 2006 Quiz 3A Solution Page 1...

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