MicroPython Forum

There is no need to store the password in a file. Once you entered the password it will be stored 'somewhere' in the esp. So after reboot it will use that stored password.

That could be tricky. If for example in an interrupt occurs which calls 'ets_loop_iter', in the middle of 'mp_hal_ticks_ms', then 'system_time_high_word' may be incremented 2 times. I think you should protect the code with ets_intr_lock();/ets_intr_unlock(); just as in 'ets_loop_iter'. Or 'mp_hal_ti...

MICROPY_PY_UTIME_TICKS_PERIOD = 2^30.
So MICROPY_PY_UTIME_TICKS_PERIOD-1 is used as a mask of 30bits (0b111111111111111111111111111111)

@pythoncoder, Your suggested mp_hal_ticks_ms will not work because system_get_time() will roll-over after 1:11H. Your assumption that the compiler truncate is true. The result of the 64bit-counter/1000 will just return the lower 32bits as a unsigned int. @kevinkk525, 1. MICROPY_PY_UTIME_TICKS_PERIOD...

I Think you are right that only one coroutine is blocking. (in fact it is not blocking it is just scheduled with a much to long delay) You know why I concluded that the whole uasyncio was blocked? Look at my test program (first post) I had one coroutine 'time_loop' that updates self.second. The othe...

@pythoncoder, @kevinkk525, I think I found the bug. In ports/esp8266/ets_alt_task.c there is a function 'ets_loop_iter'. This function is called in the main loop/during idle I think. This function implements a 64 bits counter that represents the system time in uSeconds. A snippet of the code is as f...

@pythoncoder, all time functions are more or less derived from the esp-sdk call 'system_get_time()' this is just a 32 bits counter that counts from 0 -> 2^32-1 and then rolls over to 0. I hardly can believe that this call would block. I have not found any reports of this. Also my non-uasyncio versio...

uasyncio imports and uses utimeq. If I look at the source of utimeq I see the following code: STATIC bool time_less_than(struct qentry *item, struct qentry *parent) { mp_uint_t item_tm = item->time; mp_uint_t parent_tm = parent->time; mp_uint_t res = parent_tm - item_tm; if (res == 0) { // TODO: Thi...

Thanks kevinkk525 for reporting the problem. @pythoncoder, I have added a coroutine with await asyncio.sleep(0) in my "test" program as you suggested. It is running now. If the testprogram blocks I will report the results. Added code: @asyncio.coroutine def pythoncoder(self): print("Start coroutine ...

UPDATE may 22: Cause found. The blocking is caused by a bug in mp_hal_ticks_ms. Under certain conditions uasyncio is blocked for exactly 1 hour, 11 minutes. This was first reported in topic https://forum.micropython.org/viewtopic.php?f=16&t=4706. I have been running several esp8266 (ESP-12) units t...