The circuit has to hang with fixed current

[Satheeshkumar]

hi all,

I have an issue with hardware in the circuit, which is designed by my self. The PCB has designed a customized   

condition:

I have erased full memory and measure current consumption, it is as 2.45mA

Then I have connected load with pin p0.10, now the current down to 1.1 mA then remove the load from p0.10 it does not settle back to 2.45mA retain in 1.1mA.

Note:

during this issue, there was no any firmware in the chip including soft device also not present in the chip.

[Satheeshkumar]

I have found the issue why it's hanging in 1.154mA. when I was short the pin, it is entering debug mode. can anyone help me to handle the debug interface in the circuit diagram? I have added a 12k resistor in SWDCLK pin with ground and added 10k resistor in SWDIO pin with VDD. This the debugging enable and disable circuit. whether is it correct or any other modification?

[Sigurd]

Hi,

It should generally be enough to add a 1k resistor on SWDCLK to prevent the nRF51 accidentally entering debug mode. You should not need a resistor on SWDIO. See this post.