The stepper motor controller will run in full step mode. That means the clockwise sequence will be

The counterclockwise sequence will be

Design a stepper motor controller for half step mode in VHDL using Xilinx Vivado.

The following will be your inputs:

               CLOCK

               RESET

               DIRECTION – An input that determine the direction. HIGH for clockwise and LOW for counterclockwise.

Find the simpli?ed expression for x[n] where x[n] = cos(0.6?n+ ?/6 )+?3cos(1.4?n+ ?/3 )?2cos(0.6?n? ?/6 ). ?

Some process has the following transfer function:

Gp(s)= (s+8)/[(s+3)(s+6)(s+10)]

We need to conrol this process very accurately so we add negative feedback and a controller. Design a suitable controller to meet the following specifications:

Maximusm Overshoot is approximately 20%

Settling time is 0.8s or smaller

Steady-State error for a step input is zero

when sampling analog inputs, the input should be sampled at no more than twice the maximum frequency of the signal being sampled.for an n bit analog to digital converter the input is converted to one of 2*n possible values (True or False?) Clarify

Consider the discrete-time LTI system characterized by the following difference equation with input and initial conditions specified: y[n] - 2 y[n-1] – 3 y[n-2] = x[n] , with y[0] = -1 and y[1] = 0, x[n] = (-1/2)n u[n-2]. ? Write a MATLAB program to simulate this difference equation. You may try the commands ‘filter’ or ‘filtic’ or create a loop to compute the values recursively. ? Printout and plot the values of the input signal, x[n] and the output signal, y[n] over the range 1 ? n ? 10. ? Solve this difference equation by hand using the classical method. ? Verify that the values of the output signal, y[n] produced by MATLAB are the same as those calculated by hand for the values of n = 2, 3, 4.

Draw and analyze a four resister BJT (CE) bias circuit with the following values:

      R₁=10 kΩ, R₂=12 kΩ, R_C=5 kΩ, R_E=3 kΩ and V_CC=12 V,

      Find the operating points   I_CQ and V_CEQ

            Assume a BJT transistor (npn) with β=100 and V_BE=0.7V

Create a matlab program that calculates equivalent cpacitance and charge by asking the user whether the circuit is in paraller , series or combination and then asks for the values of capacitances and voltage. After that it calculates the equivalent capacitance.

You are to design a 24-V, all-DC, stand-alone PV system to meet a 2.4 kWh/d demand for a small, isolated cabin. You want to size the PV array to meet the load in a month with average insolation equal to 5.0 kWh/m 2/d

Great care is taken to ensure that silicon boules are single crystalline with the highest possible purity. Describe how some adverse effects might manifest themselves if the processing was not handled with enough care; i.e., what makes single crystallinity and high purity so important?

Write a program that reads in characters until end of file. The program should count and print the number of characters, printable characters, vowels, digits, and consonants in the input. Use functions to check whether a character is a vowel, a consonant, or a printable character. Define and use macros to test if a character is a digit or a letter.

Use "do...while" loops to write a program that finds all prime numbers less than a specified value.

Use a switch statement to write a function that returns TRUE if a character is a consonant and returns FALSE otherwise.

Typical ultrasound consists of about 25 images extracted from a full-motion ultrasound examination. Each of these images consists of 512 by 512 pixels, each with 8 bit intensity information. a) What is the total number of bits in the 25 images?

b) Ideally the doctors would like to playback the ultrasounds at 30 frames per second. Assuming that when playing back each ultrasound frame is compressed by a factor of 0.8, what is the data rate required to play the ultrasound?

c) Consider now that this ultrasound needs to be viewed in real-time at a remote location using wireless communication. If the communication system has a signals to noise ration of 30dB and an overhead of 15%, what is the minimum bandwidth required for this communication.

d) Assume a practical error correction method is able to achieve a 75% of the above data rate. How many signal levels are required to achieve this data rate?

Can you explain the difference between overlapping and nonoverlapping in a moore sequence recognizer and mealy sequence recognizer?

Post a one paragraph summary about the way in which the limits of the speed of data transmission with Public Telephone Network System can affect you. ( please don't copy from the internet)