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exit from debug mode (S110)

Hi,

I'm using the softdevice s110. The power consumption is sometimes a little weird (around 1 mA). I think that the chip is in debug mode. How can I know if the chip is really in this mode ? In this case, is it possible to disable this mode by using NRF_POWER->RESET?

Thanks

0 ta2 over 10 years ago

What are you using as your programmer/debug device? Is it connected to your device when you are seeing the ~1mA current draw?

The little J-Link Lite boards that ship with some of the developer kits draw power from the nRF51 VDD. That confused me at one point since the Segger "black box" style J-Link devices don't do that.
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0 Susheel Nuguru over 10 years ago
Try to perform the exit procedure assuming that the system is in Debug mode and see if the current consumption decreases, if not something else is drawing the current. With this we can atleast eliminate the the device is not in debug mode. below is the procedure to do it.

Normal mode can always be resumed by performing a "hard-reset" through the SWD interface:

Enable reset through the RESET register in the POWER peripheral.

Hold the SWDCLK and SWDIO/nRESET line low for a minimum of 100 μs.
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0 Susheel Nuguru over 10 years ago

Hi ting, do you have more info on this thead?
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0 ting² over 10 years ago

Hello, Sorry for the late answer. We found out it is a hardware problem on our system. Thank you for all your answers.
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0 Jason over 9 years ago in reply to ting²

Hi, ting, what does the "hardware problem" mean ? a pull down register on the SWDCLK pin?
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