current drawing of nrf52832 before programmed

[david]

Hello, Dear friends, I am new to Nordic, just have nrf52832 board come back, seems the current is higher than I expected before I program it. does anybody know what is the current draw by nrf52832 before it is been programmed.

Thanks,

David Sun

[Roger Clark]

Hi David,

I think the current taken by a blank device is a pointless thing to measure.

In that state the ARM processor will be executing random instructions, so will be running and taking current.

You need to load valid binary file into the device, before you take current measurements.

You also need to remember to power cycle after upload (and potentially disconnect your programmer), otherwise the current drain will be higher than normal operation as the device will be in debug mode after uploading

[david]

thank you very much for answering my question. I will load the chip and measure the current. David Sun