Parameters: ui32Interrupt specifies the interrupt in question. ui8Priority specifies the priority of the interrupt.
Description: This function is used to set the priority of an interrupt. When multiple interrupts are asserted simultaneously, the ones with the highest priority are processed before the lower priority interrupts. Smaller numbers correspond to higher interrupt priorities; priority 0 is the highest interrupt priority. The hardware priority mechanism only looks at the upper N bits of the priority level (where N is 3 for the Tiva C and E Series family), so any prioritization must be performed in those bits. The remaining bits can be used to sub-prioritize the interrupt sources, and may be used by the hardware priority mechanism on a future part. This arrangement allows priorities to migrate to different NVIC implementations without changing the gross prioritization of the interrupts.
请问是这个吗?这个还是不很明白ui8Priority怎么用。例子好像是
// The interrupt handler function.
// extern void IntHandler(void); //
// Register the interrupt handler function for interrupt 5.
// IntRegister(5, IntHandler); //
// Enable interrupt 5.
// IntEnable(5); //
// Enable interrupt 5.
// IntMasterEnable();
我的是SW-TM4C-DRL-UG-2.0.1.11577这个版本,莫非孙工的2.1.0.12573有中断优先级的描述?