第一个PIC32MX ISR未触发，代码挂起

我刚刚开始使用PIC32 MX340F12和MPLABX。我的第一次尝试是编写一个定时器中断，所以我使用了数据表、编译器手册和例子，并提出了下面的内容。但它不起作用…中断从不触发，事实上，如果我同时离开定时器中断使能（T1IE＝1）和一般中断使能激活（“EI”），它运行几秒钟，然后挂起（在调试模式下说“目标停止”）。如果我删除其中任何一个，它只是无限期地运行，但仍然没有计时器中断。因此，我的ISR语法中的某个地方出现了一个非常糟糕的问题。它跳到任何人身上吗？就像我说的，我刚刚开始，所以我确信这是一个愚蠢的疏忽。正如你可能注意到的，我喜欢用寄存器和编译器指令尽可能直接地工作（而不是制造商提供的函数），我觉得我学到的东西最多。谢谢！



      以下为原文

    I'm just getting started with a PIC32MX340F12, and MPLABX. My first attempt was to write a timer interrupt, so I worked with the datasheet, compiler manual, and examples and came up with the below. But it doesn't work... the interrupt never fires, and in fact if I leave both the timer interrupt enable (T1IE=1) and the general interrupt enable active ("ei"), it runs for a few seconds then hangs (says "target halted" in debug mode). If I remove either of those, it just runs indefinitely but still no timer interrupt. So I appear to have a pretty bad problem somewhere in my ISR syntax. Does it jump out at anyone?

Like I said I'm just getting started so I'm sure it's a pretty dumb oversight. And as you may notice I like to work as directly as possible with registers and compiler directives (rather than manufacturer supplied functions), I feel like I learn the most that way.

Thanks!

#include
#include
#include "p32mx340f512h.h"
#include

int x = 0;

int main(int argc, char** argv)
{
    INTCONbits.MVEC = 1; // turn on multi-vector interrupts
    T1CON = 0; // set timer control to 0
    T1CONbits.TCKPS = 1; // set T1 prescaler to 8
    PR1 = 62499; // set t1 period
    TMR1 = 0; // initialize the timer
    T1CONbits.ON = 1; // activate the timer

    IPC1bits.T1IP = 5; // T1 priority to 5
    IPC1bits.T1IS = 0; // T1 secondary priority to
    IFS0bits.T1IF = 0; // clear the T1 flag
    IEC0bits.T1IE = 1; // enable the T1 interrupts

    asm volatile("ei"); // enable interrupts

    while (1)
    {
         x++;

         if (x > 10000)
         {
             x = 0;
         }
    }
    return (EXIT_SUCCESS);
}

bool zzz = false;

void __attribute__((interrupt(IPL5AUTO))) T1Handler(void)
{
    IFS0bits.T1IF = 0;
    zzz = true;
}

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