Two switches SWI and SW2 are connected to port E pins PE1 and PE2, respectively as shown in Figure 8.22. Pressing switch SW1 each time toggles red LED connected to PF1, while pressing SW2 toggles blue LED connected to PF2. witea Biogram that performs the desired operation. Configure all the necessary GPIO registers.

Nov are free to write your program using either poling or interrupt based approach.

Figure 8.22: LCD write operation timing for 4-bit data bus interface. ise 8.7. Consider the case where a multi-digit seven-segment display is construtt 6 single digit seven segment displays. Assuming we have two common anode ant ommon cathode digits to construct a four digit display. Redraw the connection diagen imilar to Figure 8.14, for this case. Exercise 8.8. Consider an n digit, time-multiplexed, seven-segment display. Since one: digit is turned on at a time in this case, what is the minimum possible number of GP10 pins required to interface this display