Hi, I'll take that link a look. I probably should have stated sooner that I'm using CCS version 6. I'm porting to a SimpleLink CC2650 , the old compilation method was using IAR and the intrinsic functions were called with __intrinsic void __no_operation(void)... etc... Here is what CCS is claiming: undefined first referenced symbol in file --------- ---------------- __disable_interrupt ./filepath1.obj __enable_interrupt ... __no_operation ... This document has been pretty useful so far: www.ti.com/.../spru187u.pdf It seems to indicate that the same intrinsic functions are handled by the compiler, but that's a good point you make that they may not be supported on the device. Thanks!
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