Arduino UP2 Blink - LED not flashing


I have followed tutorials and checked and double checked all connections, but LED is still not flashing.
I have set up Arduino connector for Intel Generic Platforms and have connected Grove Pi Board to the UP2 board, but somehow LED is not flashing.

I am attaching screenshot of sketch running, nut no LED is flashing.

Please help me to get started with this.


could you reverse led ( check for correct polarity of LED ), or try another LED, it works for me after reversing LED connections