[CLOSED] GPIO interrupt from buttons not always triggering
Posted: Sat Apr 25, 2020 8:41 pm
Hi,
I attached interrupts to GPIO32/GPIO33 with internal pull-up to detect button presses (NEGEDGE) similarly to the gpio_example (https://github.com/espressif/esp-idf/bl ... ple_main.c).
However, the ISR is not always triggered. In fact, it is triggered ~1 out of 4 button presses (more or less randomly). Do ISRs only trigger on fast edges?
I attached interrupts to GPIO32/GPIO33 with internal pull-up to detect button presses (NEGEDGE) similarly to the gpio_example (https://github.com/espressif/esp-idf/bl ... ple_main.c).
- odroid-go-gpio.png (44.82 KiB) Viewed 3264 times
I correctly set pull up but forgot to initialize pull_down_en to 0.