hi,dialog
We know the system has two clock, the 16M clock and the 32k clock . when the MCU(DA14580) go to sleep the 32k clock was enabled and the 16M clock disabled.
when the system wakeup the 16M clock was enabled. Am I right?
Another question : when the MCU sleep has been decided and the 16M clock is disabled . in this time did the watchdog work well ? (when the 16M enabled ,I feed
the dog per second, but if the DA sleep and then the MCU dead ,it can't feed the dog .Did the system reset after 1 sec?)
Thanks liyang.
Device:
Hi liyang,
Yes your are right the 32K clock is used during sleep mode and the 16M is used when the da operates. When the da sleeps all the peripherals including the watchdog are powered off.
Thanks MT_dialog
hi,MT_dialog
As you say When the da sleeps all the peripherals including the watchdog are powered off. Some times my device dead, but after a few hours ,the device is alive . the watchdog is not work, but what wrong with my device ? did it die when it sleep?
Thanks liyang.
Hi liyang,
对不起,我不能和erstand your problem. Your device goes to sleep and cant wake up ? Can you share some extra info ?
Thanks MT_dialog
hi,MT_dialog
As you say,the watchdog can not work when the MCU go to extend sleep. So which way can I find to recover the MCU? (some time the program may break).
Thanks liyang.
Hi liyang,
Please check the following post it might give you some insighthttp://support.dialog-semiconductor.com/testing-watchdog
Thanks