In Embedded C, we can measure the interrupt latency with the help of the oscilloscope. Follow the steps given below:
* Take two GPIOs first. Configure one GPIO to generate the interrupt and the second for the toggling (you can attach an LED also).
* Use the oscilloscope or analyzer to monitor the PIN, which is already configured to generate the interrupt.
* Now, monitor the second pin, which is toggled at the beginning of the interrupt service routine by using the oscilloscope or analyzer.
* When you generate the interrupt, the signal of both GPIOs will change.
* Now, you can easily read the instrument's interval between the two signals (interrupt latency).
