I am test the gpio interrupt on linux kernel driver, gpio77 as a output pin, gpio79 as a interrupt. I measured 336493ns latency. It seems too long. How I can improve it.
Trumany
2
Hi, can you capture the rising/falling edge waveform of them? If no external capacitors attached, then it is the default latency and no way to improve from hardware side.
Related topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| What is GPIO interrupt latency in C++ app and how to minimize | 1 | 611 | September 6, 2021 | |
| GPIO Interrupt latency | 5 | 1541 | December 14, 2021 | |
| Low Latency IO GPIO interrupt | 3 | 1109 | March 26, 2023 | |
| What GPIO output latency is typical on a Jetson Nano? What can affect this latency? | 1 | 1151 | March 21, 2022 | |
| Jetson Orin Nano (DevKIT) - latency of GPIOs | 2 | 712 | June 29, 2023 | |
| Jetson Nano GPIO interrupt lagging | 10 | 1025 | July 5, 2023 | |
| GPIO interrupt | 1 | 886 | August 12, 2021 | |
| GPIO(CAM1_PWDN) Latency | 5 | 198 | October 10, 2025 | |
| Want nanosecond delay in Jetson nano board | 4 | 494 | August 5, 2021 | |
| Jetson nano gpio enable and interrupt enable | 1 | 597 | March 22, 2021 |