This anomaly applies to IC Rev. Engineering A, build codes QFAA-AA0, QFAA-AC0, CGAA-AA0.
The CPU is unexpectedly awoken from System ON Idle.
The FPU has been used.
The CPU is awoken from System ON Idle.
#define FPU_EXCEPTION_MASK 0x0000009F
_set_FPSCR(_get_FPSCR() & ~(FPU_EXCEPTION_MASK));
(void) __get_FPSCR();
NVIC_ClearPendingIRQ(FPU_IRQn);
__WFE();