Design Verilog RTL module to detect both rising and falling edges on the input and write the testbench to cover two pulses of "signal_in" as follows. clk signal_in output module Det(clk, signal_in, out); input clk; input signal_in; output out; //Your code
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Dual Edge Detector Design: In this lab, we will be designing a dual-edge detector. This kind of circuit is simple but proves to be very useful in many applications. One such application could involve a synchronous system detecting an asynchronous button press. This circuit can detect both high-to-low (falling-edge) and low-to-high (rising edge) signals. The synchronizer portion of the circuit features two D flip flops in a shift-register arrangement. This synchronizer circuit synchronizes the asynchronous input signal so that it is in sync with the rest of the circuit. More specifically, it reduces the potential metastability of the input signal (due to potential input level change during FF's setup and hold time) by introducing a one clock cycle buffer so that the first FF's output can settle by the time it reaches the second FF on the next clock cycle. Dual Edge Detector Block Diagram: Rising Edge Detecting Logic Falling Edge Synchronizer Signal Q CLK Qbar Qbar Qbar Detecting Logic Module Suggested Truth Table: Detecting Logic Truth Table Approach Rising Falling x Y Edge Edge 0 0 1 Hint: Assume that the input Signal (in its stable state) will propagate 1s or 0s to all of the FFs. Then what would be the X and Y sequences for detecting either the rising or falling edge?
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Q19) Write a Verilog code for a positive edge-triggered D-flip flop with reset and (b) asynchronous reset: synchronous.
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