Hello Everyone,
I'm working on a few projects and I'm trying get some extra functionality from a single button.
I've written my code so that pressing and releasing the button fires an interrupt. When the button is pressed it starts a timer this timer is used to detect a long hold timeout trigger there are so flags saved so that the button release code doesn't fire in the event of the time out.
This all works exactly like I want but I need to figure out how to do double press or a long press. I was thinking another timer that starts on key up when you press it gets cancelled. and I save the press time and release time to determine a short vs long press. but is this the right way to do things?
Any advice here would be helpful,
Thanks
I'm working on a few projects and I'm trying get some extra functionality from a single button.
I've written my code so that pressing and releasing the button fires an interrupt. When the button is pressed it starts a timer this timer is used to detect a long hold timeout trigger there are so flags saved so that the button release code doesn't fire in the event of the time out.
Code:
int64_t force_power_off(alarm_id_t id, void *user_data){ set_power(PWR_OFF); context.forced = true; return 0;}void button_isr() { if (context.forced) { context.F_tmr = -1; context.forced = false; return; } cancel_alarm(context.F_tmr); context.button_state = gpio_get(POWER_BUTTON); if (context.button_state) { // button up switch (context.state) { case PWR_OFF: set_power(PWR_ON); break; case PWR_ON: pifo_write(context.pifo, EVENT_BTN | 0x01); break; default: break; } } else { // button pressed context.F_tmr = add_alarm_in_ms(15000, force_power_off, NULL, true); }}Any advice here would be helpful,
Thanks
Statistics: Posted by DarkElvenAngel — Tue Jun 11, 2024 12:35 am