Writing your code Your code should continuously read from the Arduino in an infinite loop. The code will stop when you press CTRL-C. Create an uint8_t array of 512 elements. For every iteration of the loop, read in 512 bytes into the array - as before, the read function may not return 512 bytes at once, so you will need to keep track of how many bytes you have received and keep calling read until you get 512 bytes. When you get to 512 bytes, call the dft function to calculate and display the DFT as histogram. I have also provided this dift function in the dftlib.c file. Note, that it is called dft not fft because it doesn't actually use the Fast Fourier Transform algorithm to calculate the DFT. This dft function expects three arguments - the array of uint8_t data items which you read from the Arduino, an array of double items into which dft puts the frequency values, and the size of the array. After calling dft, you should call dft_print, which will display the frequency spectrum. This dft_print function expects two arguments - the array of double items that was filled in by dft and the size of the array. The skeleton code can be downloaded from Compile and run your program as follows. Use the -03 option to enable maximum optimization. Otherwise, the DFT calculations may be too slow. $ gcc -03 -o dataread dataread.c dftlib.c $ ./dataread /dev/ttyS2 000 *** 022 ****** 047 ***** 071 096 **** 120 *** 142 ** 167 ** 191* 216* 240* 262 + 287* 311+ 336- 360- 382- 407 -- 431 + 456+ The numbers on the left represent the frequency and the bars that go the right represent the intensity of the frequency in the received signal. When you run the code, you should be able to see what frequencies are in the signal. If you press and hold down the button, you will see the frequencies change. #include #include #include #include #include #include void dft(uint8_t*, double*, int); void dft_print(double*, int, double); #define N 512 int main(int argc, char **argv) { char *port = argv[1]; /* Open the file */ int fd = open(port, O_RDONLY); // code to set communication rate to 9600 bits per second struct termios tio; tcgetattr(fd, &tio); cfset speed(&tio, B9600); tcsetattr(fd, 0, &tio); // reopen the serial port so that the speed change takes effect close(fd); fd = open(port, O_RDONLY); if (fd < 0) { } perror("Could not open port"); exit(-1); uint8_t data[N]; double dftdata[N]; // TODO create a loop that continuously // // reads N bytes from fd into the data array calls the dft function to create the frequency values calls the dft_print function to print the DFT close(fd); }

A digital counter is a device that generates binary numbers in a specified count sequence. The counter progresses through the specified sequence of numbers when triggered by an incoming clock waveform, and it advances from one number to the next only during the occurrence of a clock pulse. The counter cycles through the same sequence of numbers continuously so long as there is an incoming clock pulse. You are to build a 3-bit synci. us count-down counter, which is a counter that counts down goes throug.. Linnni states 111 to 000 and back to 111 to repeat the cou. are to use a positive-edge-tgered JK flip-flops. In the first step of the design, you ecu .- Flop inputs (1 column for each flip-flop input) The present state pur uv.. design and should enumerate the count sequence. The next state columns should specif wnicn slale wn cuo next, given the present state. For example, if circuit is in a present state of the nevt ate in a down-count sequence would be 0. You should design the FF…

Implement a program to do a bitwise complement (NOT) of an integer number entered by the user. You should use the XOR operator to implement the NOT, do not use the NOT operator. Your program should include a proper and useful prompt for input, and print the results in a meaningful manner. use assembly language to code

Task 4: Application of 7-Segment Display Controller: You are to design a combinational circuit that displays the 7-segment display outputs triggered by the following 2 input combinations. The block diagram of the required design is shown below. Combinational Circuit a) Complete the table below. Inputs Y 7-segments Output (small letter) a e 1 b) Plot the truth table entries in the K-map matrix and simplify. Y X X a = b = C= Y Y X X X d = e = f = g = c) Draw and build the combinational logic circuit below.

How many clocks does it take for a change in Datain to be reflected on DataOut? module BitReverser ( (); input logic clk, input logic Rst, input logic [7:0] DataIn, output logic [7:0] Dataout assign Dataout [7] = DataIn[0]; assign DataOut [6] = DataIn[1]; assign Dataout [5] = DataIn[2]; assign Dataout [4] = DataIn[3]; assign DataOut [3] = DataIn[4]; assign Dataout [2] = DataIn[5]; assign DataOut [1] = Dat n[6]; assign DataOut[e] = DataIn[7]; endmodule Pick one of the choices 00 01 04 08

Design a circuit that takes three bits, X2, X1, X0 as input and produces one output, F. F is 1 if and only if 2<=X<=5 when X = (X2, X1, X0) is read as an unsigned integer. For example, if X2=1, X1=0, and X0=0, then the unsigned binary value is 100, which is 4, so the output would be 1.   Your Assignment For This Problem Includes the Following Design the necessary circuit using Logisim to implement the situation described above. Use Kmaps for simplification. Be VERY careful to get the correct functions for your output before simplifying and designing the circuit with Logisim. You should minimize the circuit. Your circuit should have three inputs and one LED output. All inputs (X2, X1, X0) and output (F) should be labeled (in Logisim, not by hand). Please use these names to indicate the inputs and output so all projects are consistent. You should also include your name as a label on the circuit. Test your circuit to be sure it is working correctly.