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Exercise 3 In this exercise, you will make a design using all 4 of the 7-segment displays. Because they share the same segment lines from PORTB, you must display the digits one at a time and continually scan the display. Each digit is enabled by the first 4 bits of PORTA (PA3, PA2, PA1, PA0) where PA3 enables the left-hand digit and PA0 enables the right-hand digit. The scanning will put each digit up and then give a short delay so that the digit is visible, then the next digit is displayed and so on until all 4 digits are displayed. Assuming that you have an integer value \texttt{count} and the 4 digits to display are held in the variables \texttt{dig3}, \texttt{dig2}, \texttt{dig1}, \texttt{dig0} as shown below. \texttt{dig3} = \texttt{count}/ 1000; \texttt{dig2} = (\texttt{count} \% 1000)/100; \texttt{dig1} = (\texttt{count} \% 100)/10; \texttt{dig0} = \texttt{count} \% 10; make the value of \texttt{count} increase from 0 to 9999 and show its values on the 4 7-segment as shown in Figure 4. Simulate your design and see whether the design fully functions as you expected. Figure 4 7-Segment display

          Exercise 3
In this exercise, you will make a design using all 4 of the 7-segment displays.
Because they share the same segment lines from PORTB, you must display
the digits one at a time and continually scan the display.
Each digit is enabled by the first 4 bits of PORTA (PA3, PA2, PA1, PA0)
where PA3 enables the left-hand digit and PA0 enables the right-hand digit.
The scanning will put each digit up and then give a short delay so that the
digit is visible, then the next digit is displayed and so on until all 4 digits are
displayed. Assuming that you have an integer value \texttt{count} and the 4 digits to
display are held in the variables \texttt{dig3}, \texttt{dig2}, \texttt{dig1}, \texttt{dig0} as shown below.
\texttt{dig3} = \texttt{count}/ 1000;
\texttt{dig2} = (\texttt{count} \% 1000)/100;
\texttt{dig1} = (\texttt{count} \% 100)/10;
\texttt{dig0} = \texttt{count} \% 10;
make the value of \texttt{count} increase from 0 to 9999 and show its values on the 4
7-segment as shown in Figure 4. Simulate your design and see whether the
design fully functions as you expected.
Figure 4 7-Segment display

Exercise 3
In this exercise, you will make a design using all 4 of the 7-segment displays.
Because they share the same segment lines from PORTB, you must display
the digits one at a time and continually scan the display.
Each digit is enabled by the first 4 bits of PORTA (PA3, PA2, PA1, PA0)
where PA3 enables the left-hand digit and PA0 enables the right-hand digit.
The scanning will put each digit up and then give a short delay so that the
digit is visible, then the next digit is displayed and so on until all 4 digits are
displayed. Assuming that you have an integer value count and the 4 digits to
display are held in the variables dig3, dig2, dig1, dig0 as shown below.
dig3 = count/ 1000;
dig2 = (count % 1000)/100;
dig1 = (count % 100)/10;
dig0 = count % 10;
make the value of count increase from 0 to 9999 and show its values on the 4
7-segment as shown in Figure 4. Simulate your design and see whether the
design fully functions as you expected.
Figure 4 7-Segment display

Added by Jose Carlos S.

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