TI 提供的Example 中：
interrupt void cpu_timer0_isr(void)
{
CpuTimer0.InterruptCount++;
// Acknowledge this interrupt to receive more interrupts from group 1
PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;
}
interrupt void cpu_timer1_isr(void)
{
CpuTimer1.InterruptCount++;
// The CPU acknowledges the interrupt.
EDIS;
}
interrupt void cpu_timer2_isr(void)
{ EALLOW;
CpuTimer2.InterruptCount++;
// The CPU acknowledges the interrupt.
EDIS;
}
1、为什么0没有EALLOW/EDIS语句，而1中只有EDIS,2中有EALLOW/EDIS语句？？？
2、TCR寄存器中的中断标志位TIF是否需要在中断服务函数中软件清零？？
谢谢解答 |
|
楼主
发表于 2014-1-22 17:27
