![]() ![]() So be clear : In the circuit, there must be at least the existence of sequential logic circuit to realize the comparison between the front and back states of the input. Our design goal is to be able to ( Between the two rising edges ) The rising edge of the input signal is detected ( by 0 To 1 The jump of ). Detection method of rising edge ( The falling edge method analogizes itself ) (1) Design thinking ***** ** Detection circuit focuses on circuit design rather than code writing ability ** ***** Two 、 Detection method of rising edge and double edge 1. If the input signal is an ideal signal without burr and jitter, Edge detection is particularly important, Of course, the optimized detection circuit that can filter burr and jitter is also within the scope of this blog. When the key is pressed, Input signal key There's a falling edge, After lifting, it becomes a rising edge. We usually use edge detection for key input detection, This test is not the only one ( SCM can also achieve ). One 、 Brief introduction of edge detection (3) Improvement and code implementation.(2) Implementation and function evaluation.Detection method of rising edge ( The falling edge method analogizes itself ) Two 、 Detection method of rising edge and double edge.One 、 Brief introduction of edge detection.
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