Questions tagged [edge-detection]
The edge-detection tag has no summary.
22 questions
0 votes
0 answers
24 views
TPL5111 System timer questions regarding to edge detection
I'm using the TI TPL5111 in one-shot mode to enable an LDO for about 30Min. My mission is to start counting 30Min when I detect falling of signal EXT_IND. According to the TPL5111 datasheet, the ...
- 553
3 votes
2 answers
510 views
Usage of edge-triggering constructs in Verilog
I want to know if following code is syntactically, synthesiszably correct? Is it a recommended practice, if not, why? Assuming that count is a register which is ...
- 631
0 votes
2 answers
133 views
1 input signal, two edge detectors
I have a simple rising edge detector on the top and a falling edge detector at the bottom. The switches represent low-side switched sensor. In fact, I only have one sensor. How do I use one sensor ...
- 7
1 vote
4 answers
279 views
Dual edge detector with binary counter doesn't count correctly
I want to build a circuit that counts the on and off of a reed switch in a CD4040 binary counter. I wired the circuit below in a breadboard. This has a debounced switch connected to a 74HC86 that when ...
- 13
1 vote
2 answers
108 views
SCLK : 50 [MHz] Rising Edge vs 25 [MHz] Dual Edge : Tradeoffs
TI manufacturers two near-identical drivers for matrixed LEDs, LP5890 and TLC6983. I was only able to determine the following ...
- 457
0 votes
4 answers
304 views
How to detect digital edge after "long time" steady 0 or 1?
Given 1 hall sensor. It can be in: State 1: Static 0 (no oscillations) State 2: Static 1 (no oscillations) State 3: Edging 0/1 at different frequencies Given also an MCU which counts the positive ...
- 335
0 votes
1 answer
498 views
I designing a pulse generation circuit using capacitor and resistor but my output is not coming as expected
I am designing a pulse circuit which I will be feeding to a comparator. I am using a combination of resistor capacitor and diode for generating positive edge triggered pulse as shown in the below ...
- 15
10 votes
1 answer
1k views
Falling edge detector sometimes doesn't work
I have a falling edge detector built based on a D flip-flop as shown in the following figure: Components: 74hc74, 74ls04n, 74hc08 A sample output is shown below (I ...
- 153