方法1 interrupt 3 IntFunc1()
{
…/*code*/
}
Means that the third entry in the vector table is initialized with the address of IntFunc1().
方法2
In the C file:
interrupt IntFunc2()
{
…..
}
In the PRM file:
VECTOR ADRESS 0xFFF2 IntFunc2
Means that the address of IntFunc2 is written at address 0xFFF2. | 
