how-to-test-de-115-with-this-example-for-writing-c-language

https://skydrive.live.com/redir?resid=e0ed7271c68be47c!361

when i open the project to build project again it said RUN_ON_HDL_SIMULAGTOR_ONLY xxxx.elf error 1

then i build BSP again and build project again, it become make all complete then i remember to make clean, it got the error again and then build again

however, no matter what i do, i turn on or off switch, it only light turn on, and never off