How to put the system in off mode nrf51822

[SumitS]

Hello,

I want to measure the current in system off mode. I am flashing the S110 softdevice and bootloader in the nrf51822 chip. Using BLE i am flashing an application code which does nothing but calls the function sd_power_system_off(). When we measure the current the it is about 1mA. We are using the Insight SIP evaluation kit. Also after flashing the code we restarted the system and removed the debugger.

Could you please guide us as to where we are wrong.

Thanks & Regards, Sumit Singhal

[Susheel Nuguru]

I am not so familiar with this evaluation kit, but are there any LED's on? i see that you do some pin clear, but on some devkits here the latches are inverted and the pin clear would light a LED.

Another thing is that you can try to flash your app without softdevice and bootloader (clear the chip and flash your app to ROM address 0). Then make measurements and see if the current consumption drops. We can then isolate the softdevice and bootloader from this.