stm32 触发 pendSV 异常中断

1万 · 2020-9-28 09:24

#define  NVIC_INT_CTRL 0xE000ED04 //系统控制状态寄存器
#define  NVIC_SYSPRI2    0xE000ED20 //系统优先级寄存器2
#define  NVIC_PENDSV_PRI  0x000000FF //PendSV优先级设置为最低
#define  NVIC_PENDSV_SET  0x10000000 //触发PendSV的值

// PendSV异常
void ProductPendSV()
{
*(volatile unsigned long *)NVIC_SYSPRI2 = NVIC_PENDSV_PRI;
*(volatile unsigned long *)NVIC_INT_CTRL = NVIC_PENDSV_SET;
}