AnsweredAssumed Answered

how to trace the sleep time of K24

Question asked by david sun on May 26, 2017
Latest reply on May 31, 2017 by Kerry Zhou

Hi Dear supporter, 

I have a simple question which I was told hard to solve. I am a hardware designer, got a new assignment to design a hardware feature to measure how long the K24 in sleep mode. the assumption is K24 use a IO pin tell me when it is going to sleep, then I use a hardware solution to count, and when K24 wake up, the hardware stop count. 

is there a software way to solve this problem? 

I was told that when the K24 wake up, the low power real time clock will get reset or clear, so it can't be used to record how long it has been in sleep. please give me some suggestion. need a little detail for software solution, because I am a hardware engineer. 

Appreciate your help.


David Sun