1. 2. 3. N-bit LED display, which continuously displays a light pattern using a clock syn-...
1. 2. 3. N-bit LED display, which continuously displays a light pattern using a clock syn- chronous sequential circuit. For example, a 4-bit LED pattern will be 1000 → 0100 → 0010 → 0001 → 0010 → 0100 → 1000 → 0100 ···
Design of the LED display. Design a synchronous sequential circuit that can output the 4-bit LED pattern 1000 → 0100 → 0010 → 0001 → 0010 → 0100 → 1000 → 0100 ··· Briefly justify your design methodology. Explain the design procedure, give the logic diagram, the flip-flop input equations and output equations.
Homework Answers
for 4 bit display with patterns 1000,0100,0010,0001,0010,0100,1000
state diagram:
'using binary encoding
s0=000
s5=101
state table with outputs:
here A, B, C are present state variables
An,Bn,C_n are next state variables
LED are 4 output LED's
each state represents an output pattern sequence value
design using D flip flops:
hence the final circuit is a 3 bit MOD-6 counter with each count represent an output pattern.
the output of the counter is decoded to generate the output sequence.
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1. 2. 3. N-bit LED display, which continuously displays a light
pattern using a clock syn-...
1 Simulations to verify a 4-bit Register Simulate and verify a 4-bit Register using behavioral VHDL...
1 Simulations to verify a 4-bit Register Simulate and verify a 4-bit Register using behavioral VHDL code in ModelSim. Recall that sequential circuits depend on both present and past state. Sequential circuits are in contrast to combinational circuits, which depend on input values from only the present state. Fur- thermore, recall that a flip-flop is a fundamental circuit used to create more complex sequential circuits. A register is an array of storage components, such as flip-flops. For example, a 4-bit...
Q1) If R0 and R1 are both 16-bit serial shift registers, each with a single serial input (S_IN) and a single serial output (S_OUT), clock and reset. Design using R0 and R1 additional logic, a circuit...
Q1) If R0 and R1 are both 16-bit serial shift registers, each with a single serial input (S_IN) and a single serial output (S_OUT), clock and reset. Design using R0 and R1 additional logic, a circuit that would store the output S_OUT of either R0 or R1 into a D-FF based on input CH. If CH is 0, S OUT of R0 will be stored in the D-FF (at the edge of the clock) and if CH is 1, S_OUT...
solve 1 2 and 3 Problems 1 and 2 require a 7-segment display. You may want to re-use the display driver you developed in Lab 3. Use a push-button as the clock - the pushbuttons are debounced, whereas...
solve 1 2 and 3
Problems 1 and 2 require a 7-segment display. You may want to re-use the display driver you developed in Lab 3. Use a push-button as the clock - the pushbuttons are debounced, whereas the slide switches are not. Remember to provide columnsfor lest data in your state lables (use the observed next state as the test data in problems I and 2, and the observed next state and preseni output as the lest data in...
Consider the circuit in Figure 1. It is a 4-bit (QQ2Q3) synchronous counter which uses four T-typ...
Consider the circuit in Figure 1. It is a 4-bit (QQ2Q3) synchronous counter which uses four T-type flip-flops. The counter increases its value on each positive edge of the clock if the Enable signal is asserted. The counter is reset to 0 by setting the Clear signal low. You are to implement an 8-bit counter of this type Enable T Q Clock Clear Figure 1. 4-bit synchronous counter (but you need to implement 8-bit counter in this lab) Specific notes:...
Objective: In this lab, we will learn how we can design sequential circuits using behavioral mode...
Just need the code for the
random counter,Thanks
Objective: In this lab, we will learn how we can design sequential circuits using behavioral modelling, and implementing the design in FPGA. Problem: Design a random counter with the following counting sequence: Counting Sequence: 04 2 9 168573 Design Description: The counter has one clock (Clock), one reset (Reset), and one move left or right control signal (L/R) as input. The counter also has one 4bit output O and one 2bit output...
1 Simulations to verify a 4-bit Register Simulate and verify a 4-bit Register using behavioral VHDL code in ModelSim. Recall that sequential circuits depend on both present and past state. Sequential circuits are in contrast to combinational circuits, which depend on input values from only the present state. Fur- thermore, recall that a flip-flop is a fundamental circuit used to create more complex sequential circuits. A register is an array of storage components, such as flip-flops. For example, a 4-bit...
solve 1 2 and 3
Problems 1 and 2 require a 7-segment display. You may want to re-use the display driver you developed in Lab 3. Use a push-button as the clock - the pushbuttons are debounced, whereas the slide switches are not. Remember to provide columnsfor lest data in your state lables (use the observed next state as the test data in problems I and 2, and the observed next state and preseni output as the lest data in...
Consider the circuit in Figure 1. It is a 4-bit (QQ2Q3) synchronous counter which uses four T-type flip-flops. The counter increases its value on each positive edge of the clock if the Enable signal is asserted. The counter is reset to 0 by setting the Clear signal low. You are to implement an 8-bit counter of this type Enable T Q Clock Clear Figure 1. 4-bit synchronous counter (but you need to implement 8-bit counter in this lab) Specific notes:...
Just need the code for the
random counter,Thanks
Objective: In this lab, we will learn how we can design sequential circuits using behavioral modelling, and implementing the design in FPGA. Problem: Design a random counter with the following counting sequence: Counting Sequence: 04 2 9 168573 Design Description: The counter has one clock (Clock), one reset (Reset), and one move left or right control signal (L/R) as input. The counter also has one 4bit output O and one 2bit output...
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