Timer

• FAQ for GPTimer
  • 1. What is the difference between app_tim.c and app_timer.c? Which timers are low power timers? Which ones are not?
  • 2. Using Timer/Dual Timer timing, test the timing accuracy by flipping the IO in interrupt, and found the error is relatively large, what is the reason?
  • 3. Using Timer/Dual Timer timing, test the timing accuracy by flipping the IO in the interrupt, and found that the error of the first cycle is very large, and the later cycles meet the requirement, what is the reason?
• FAQ for RTC
  • 1. What are the reasons for the large RTC timing errors?
  • 2. How to get the system runtime according to RTC?
  • 3. The RTC does not work, or call app_rtc_get_time(&time) and find that the time obtained remains the same, what is the reason?
• FAQ for WDT
  • 1. What are the reasons why the watchdog does not work (or does not feed the dog for a predetermined period of time, but does not generate a reset)?
  • 2. The watchdog reset time is not correct, what is the reason?