问答题
中断向量地址=(100010001B)<<9+(10011)<<2=88CCH
STM #SPCR20, SPSA0 ORM #01000001B, BSP0
STM #SPCR20, SPSA0 STM #0081H, BSP0
STM #SPCR10, SPSA0 STM #0001H, BSP0