diff options
Diffstat (limited to 'watch-library/watch/watch_extint.h')
| -rw-r--r-- | watch-library/watch/watch_extint.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/watch-library/watch/watch_extint.h b/watch-library/watch/watch_extint.h index e3084371..9c810534 100644 --- a/watch-library/watch/watch_extint.h +++ b/watch-library/watch/watch_extint.h @@ -59,16 +59,15 @@ void watch_disable_external_interrupts(); * want to detect both rising and falling conditions (i.e. button down and button up), use * INTERRUPT_TRIGGER_BOTH and use watch_get_pin_level to check the pin level in your callback * to determine which condition caused the interrupt. - * @param pin One of pins BTN_LIGHT, BTN_MODE, BTN_ALARM, or A0-A5. If the pin parameter matches one of + * @param pin One of pins BTN_LIGHT, BTN_MODE, BTN_ALARM, or A0-A4. If the pin parameter matches one of * the three button pins, this function will also enable an internal pull-down resistor. If - * the pin parameter is A0-A5, you are responsible for setting any required pull configuration + * the pin parameter is A0-A4, you are responsible for setting any required pull configuration * using watch_enable_pull_up or watch_enable_pull_down. * @param callback The function you wish to have called when the button is pressed. * @param trigger The condition on which you wish to trigger: rising, falling or both. * @note The alarm button and pin A2 share an external interrupt channel EXTINT[2]; you can only use one * or the other. However! These pins both have an alternate method of triggering via the RTC tamper - * interrupt, which for A2 at least has the added benefit of being able to trigger in the low-power - * BACKUP mode. + * interrupt, which has the added benefit of not requiring the external interrupt controller at all. * @see watch_register_extwake_callback */ void watch_register_interrupt_callback(const uint8_t pin, ext_irq_cb_t callback, watch_interrupt_trigger trigger); |