Help!my apollo3 blue cant use deepsleep example!

i am learning how to use apollo3 blue from https://learn.sparkfun.com/tutorials/us … troduction and all is going well, but while I use its deepsieep example something wrong. The program goes well at the beginning but the result of current is 1mA. However I cant found any problem in the code.Also I can see the code run correct by the prinf on UART.

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I think it is working, but the rusult is not into deep sleep obviously.

I think I maybe did wrong in makefile or bsp building?