We have a laser signal detection system as shown in the figure below. In this system, we want to detect the incoming laser pulse. The MCU will detect the incoming pulse and perform its operations accordingly. That is, the pulse signal is either present or not. I will not take any operation with the time of flight.
The pulse signal is 10ns and ranges from 50-100MHz. An example pulse signal is seen in Figure 2.
Figure 1. Detect System
Figure 2. Pulse
1) I want to detect the incoming pulse signal only with the comparator and read it with the MCU. It's a high frequency signal and I think high MCU speeds would be needed to detect it. Am i wrong? Can I miss pulse signals when I do it this way?
2) When I do it with TDC7201, can I read every incoming pulse signal from interrupt registers?