//设定喂狗时间
private void Feed_Click(object sender, System.Windows.RoutedEventArgs e)
{
//WDT的可编程超时范围为1~65535秒/分
ushort time = 60;
try
{
time = Convert.ToUInt16(time_val.Text);
if (time < 10 || time > 65535)
{
MessageBox.Show("请输入10~65536之间的整数！");
return;
}
}
catch (Exception)
{
MessageBox.Show("请输入10~65536之间的整数！");
return;
}
if (watchdog == null)
{
MessageBox.Show("未选择迷你电脑型号！");
return;
}
interval.Text = "喂狗间隔：" + time + "s";
feedTime = time;
wtimer = Convert.ToUInt16(Math.Ceiling(time * 0.8));//定时器必须提前喂狗
Console.WriteLine("feedTime:{0} wtimer:{1}", feedTime, wtimer);
watchdog.InitSuperIO();
watchdog.InitLogicDevice();//LDN 07
if (watchdog.MinipcType.Equals("Q500"))
{
//SMI# Control Register 2 (Index=F1h, Default=00h)
//bit 6:触发方式 0边沿触发/1电平触发
//bit 2 SMI# WDT功能开关 1开/0关
if (timeUint == 0)
{
watchdog.EnableWatchDog(0xf1, 0x44);//0100 0100
}
}
else
{
//Watch Dog Timer Configuration Register (Index=72h, Default=001s0000b)
//bit 7:喂狗时间单位 1秒/0分
//bit 4:WDT功能开关 1开/0关
if (timeUint == 0)
{
watchdog.EnableWatchDog(0x72, 0x90);//1001 0000
}
}
watchdog.ExitSuperIo();
//看门狗管理器
//先清除已存在的看门狗，如果存在
WatchDogManager tm = WatchDogManager.Instance;
if (tm.Timer != null)
{
Console.WriteLine("关闭之前的定时器！");
tm.Timer.Stop();
tm.Timer = null;
tm.WatchDog = null;
}
//设定喂狗时间，即在设定时间内必须喂狗，否则会自动重启
watchdog.FeedDog(feedTime);
if (!wdttimer.IsEnabled)
{
wdttimer.Interval = TimeSpan.FromMilliseconds(wtimer * 1000);
wdttimer.Start();
}
tm.Timer = wdttimer;
tm.WatchDog = watchdog;
}