引用 6 楼 reallyu 的回复: // 初始化外部按键中断: 注册中断事件, 允许外部中断 if (!(InterruptInitialize(g_TIMER2SysIntr, TimerEvent, 0, 0))) { RETAILMSG(1, (TEXT("ERROR: TIMER2TIM: InterruptInitialize failed.\r\n"))); CloseHandle(TimerEvent); return 0; } // 从 OAL 请求一个 SYSINTR 值 ? ? if (!KernelIoControl(IOCTL_HAL_REQUEST_SYSINTR, &g_TIMER2Irq, sizeof(UINT32), &g_TIMER2SysIntr, sizeof(UINT32), NULL)) ? ? { ? ? ? ? RETAILMSG(1, (TEXT("ERROR: TIMER2: Failed to request sysintr value for EINT interrupt.\r\n"))); ? ? ? ? return(0); ? ? } ? ? RETAILMSG(1,(TEXT("INFO: TIMER2: Mapped Irq 0x%x to SysIntr 0x%x.\r\n"), g_TIMER2Irq, g_TIMER2SysIntr)); 这两个顺序反了吧, 先请求 sysIntr 的值 然后再绑定事件