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modpybrtc.c

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    • puuu's avatar
      cafdfb7a
      esp8266/modpybrtc: Handle RTC overflow. · cafdfb7a
      puuu authored 
      ESP-SDK system_get_rtc_time() returns uint32 and therefore overflow
about every 7:45h.  Let's write the last state of system_get_rtc_time()
in RTC mem and use it to check for overflow. This commit require running
pyb_rtc_get_us_since_2000() at least once within 7 hours to avoid
overflow.
      cafdfb7a
      History
      esp8266/modpybrtc: Handle RTC overflow.
      puuu authored 
      ESP-SDK system_get_rtc_time() returns uint32 and therefore overflow
about every 7:45h.  Let's write the last state of system_get_rtc_time()
in RTC mem and use it to check for overflow. This commit require running
pyb_rtc_get_us_since_2000() at least once within 7 hours to avoid
overflow.
    compile.c 140.14 KiB