NRF51822 NRF_POWER-> RESETREAS = NRF_POWER-> RESETREAS = 0x00010000

[tsy19950218]

When I use the battery to power on, I get NRF_POWER-> RESETREAS = 0x00010000. I check the register manual to see that it is GPIO wake-up. But I didn't configure GPIO wake-up. Is this normal?The first NRF_POWER-> RESETREAS gets 0x00010000, the second gets 0x00000000.

[tsy19950218]

实验7：串口.rar

Use keil_V4.Chip version is nrf51822qfaac0

[Susheel Nuguru]

It works normally on my side.

I am doing a pin reset the first time and i can see that correctly and the second one is cleared since your program clear it explicitly.

[tsy19950218]

Does this mean that my IC must have entered the system off mode and then woke up? But I did not enter the system of mode in my program. Which ways may it enter

[Susheel Nuguru]

The system will enter system off only if explicitly done in the application. There is no other way the chip goes into system off by itself. I am not sure why you see a different output than me with the exact same project. Or are you testing it with a different project?

[tsy19950218]

It's the same project as the uploaded project. At present, C0 version has been abandoned and the latest IC version is used. Thank you for your reply.