Exercises
10.1 A 7-segment display is connected, as in Figure 10.2. Write a program to count the odd-numbered integers between 0 and 9 (i.e. 1,3,5,7 and 9) and display these numbers with 1 second intervals on the 7-segment display.
10.2 A 2-digit 7-segment display is connected, as in Figure 10.8. Write a program to count from 0 to 99 with 500 ms intervals and display the count on the 7-segment display.
10.3 Explain why a multiplexed 7-segment display should be refreshed in the timer interrupt service routine.
10.4 A 4-digit 7-segment display is connected, as in Figure 10.16. Write a program to count down from 1000 to 0, and display the count on the 7-segment display with 250 ms intervals.
10.5 A BM08M04N-R type 4-digit 7-segment display is connected to a microcontroller. Write a program to generate a random number between 1 and 1000 and display this number on the 7-segment display.
10.6 It is required to develop a dice program using a single digit 7-segment display. A push-button switch is connected to port pin RA0 of the microcontroller. Write a program to display a dice number between 1 and 6 on the display when the button is pressed. Describe how the program can be modified to display two dice numbers.
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