We have an application with a S132 device, SDK 14 and Softdevice v5.0.0. On some devices, an assert is being thrown in the sleep prepare function. This is the line ASSERT((fpscr & 0x07) == 0);
What could the possible cause of this be? Is there any special PCB support required for this to work? The devices that work have a different PCB revision. Is there chip errata pertaining to this?