I am reading conflicting information on what valid values are for NVIC interrupt priorities. Some resources say only 4 bits (0-15), others say 0-256. I am using the K64 processor.
Example usage: NVIC_SetPriority(PORTB_IRQn, 16);
I am using values: 0, 8, 16, 32, 64, and 128 for different interrupts. I am not getting errors, but I also cannot tell if the priorities are actually working correctly either.
Any insight would be helpful.