Disable Pin Wakeup RT1062 P11

Heolstor · April 6, 2025, 10:45am

Hi all!

I’m just getting to grips with a new RT1062 - so much functionality out of the box! One quick q: is it possible to disable the wakeup interupt on P11 before entering deep sleep? It seems like it’s configured by default. I’d like to be able to put the unit to sleep with the choice of this either armed whilst the system is active or to preclude waking until the RTC timer kicks in during an inactive ‘wait’ mode.

Many thanks,
H

kwagyeman · April 6, 2025, 8:44pm

Hi Heolstor…

No, you’d need to edit the MicroPython code. We arm it right before going to sleep:

github.com/openmv/micropython

ports/mimxrt/modmachine.c

03775bdcb


      
          }
          
          static void mp_machine_idle(void) {
              MICROPY_EVENT_POLL_HOOK;
          }
          
          static void mp_machine_lightsleep(size_t n_args, const mp_obj_t *args) {
              mp_raise_NotImplementedError(NULL);
          }
          
          NORETURN static void mp_machine_deepsleep(size_t n_args, const mp_obj_t *args) {
              if (n_args != 0) {
                  mp_int_t seconds = mp_obj_get_int(args[0]) / 1000;
                  if (seconds > 0) {
                      machine_rtc_alarm_helper(seconds, false);
                      #ifdef MIMXRT117x_SERIES
                      GPC_CM_EnableIrqWakeup(GPC_CPU_MODE_CTRL_0, SNVS_HP_NON_TZ_IRQn, true);
                      #else
                      GPC_EnableIRQ(GPC, SNVS_HP_WRAPPER_IRQn);
                      #endif
                  }

…

You can create your own version of the deepsleep method in pure python though by using the machine module and writing to the register from Python.

import machine
machine.mem32[0x400D4000 + 0x38] |= 0x40
while True: pass

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Disable Pin Wakeup RT1062 P11

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