(a) The step angle of a stepper motor is 1.80. It is required to rotate it two full rotations in the clockwise direction and wait for 2second and continue the process. Assume full stepping mode. Step sequence is given in Table 1. Table 1: The 4-step sequence (i) Draw the interfacing diagram of the stepper motor with port 1 of the 8051 . microcontroller. (ii) Write an ALP for the above process in Q6 (a) (i). [5 Marks] [5 Marks] (b) A student is expected to generate a PWM signal to controt a DC motor. The duty cycle of the PWM signal is may vary 25% or 45% or 50% or 65%. Assume that the frequency of the PWM signal is 50kHz. If the student wants to rotate the motor 41 th of its maximum speed, what is the duty cycle to be selected? Write an ALP to generate the required PWM signal using Timers. [5 Marks]