将数据发送到串口时的异步数字时钟
将数据发送到串口时的异步数字时钟
提问于 2015-05-20 03:21:06
我有一个WPF应用程序和一个用动态开发平台制作的数字时钟。WPF发送一个初始时间和5个警报。但是，当digital发出警报已被激活的通知时，WPF应用程序将其读取并显示为消息框，但当消息框被激活时，应用程序中的数字时钟会停止。我怎样才能保持时钟正常运转呢？
政务司司长
public partial class MainWindow : Window
{
SerialPort sp;
public MainWindow()
{
InitializeComponent();
}
void timer_Tick(object sender, EventArgs e)
{
lblTime.Content = Convert.ToDateTime(lblTime.Content).AddSeconds(1).ToLongTimeString();
int btr = sp.BytesToRead;
if (btr != 0)
{
string alarma = char.ConvertFromUtf32(sp.ReadChar());
MessageBoxResult result = MessageBox.Show("La alarma " + alarma + " se activo", "Alarma", MessageBoxButton.OK, MessageBoxImage.Exclamation);
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
int intHoras = Convert.ToInt32(Horas.Text == "" ? "-1" : Horas.Text);
int intMinutos = Convert.ToInt32(Minutos.Text == "" ? "-1" : Minutos.Text);
int intHoras1 = Convert.ToInt32(Horas1.Text == "" ? "-1" : Horas1.Text);
int intMinutos1 = Convert.ToInt32(Minutos1.Text == "" ? "-1" : Minutos1.Text);
int intHoras2 = Convert.ToInt32(Horas2.Text == "" ? "-1" : Horas2.Text);
int intMinutos2 = Convert.ToInt32(Minutos2.Text == "" ? "-1" : Minutos2.Text);
int intHoras3 = Convert.ToInt32(Horas3.Text == "" ? "-1" : Horas3.Text);
int intMinutos3 = Convert.ToInt32(Minutos3.Text == "" ? "-1" : Minutos3.Text);
int intHoras4 = Convert.ToInt32(Horas4.Text == "" ? "-1" : Horas4.Text);
int intMinutos4 = Convert.ToInt32(Minutos4.Text == "" ? "-1" : Minutos4.Text);
int intHoras5 = Convert.ToInt32(Horas5.Text == "" ? "-1" : Horas5.Text);
int intMinutos5 = Convert.ToInt32(Minutos5.Text == "" ? "-1" : Minutos5.Text);
if ((intHoras <= 24) && (intMinutos <= 60) && (intHoras >= 0) && (intMinutos >= 0) &&
(intHoras1 <= 24) && (intMinutos1 <= 60) && (intHoras1 >= 0) && (intMinutos1 >= 0) &&
(intHoras2 <= 24) && (intMinutos2 <= 60) && (intHoras2 >= 0) && (intMinutos2 >= 0) &&
(intHoras3 <= 24) && (intMinutos3 <= 60) && (intHoras3 >= 0) && (intMinutos3 >= 0) &&
(intHoras4 <= 24) && (intMinutos4 <= 60) && (intHoras4 >= 0) && (intMinutos4 >= 0) &&
(intHoras5 <= 24) && (intMinutos5 <= 60) && (intHoras5 >= 0) && (intMinutos5 >= 0))
{
sp = new SerialPort("COM3");
sp.BaudRate = 19200;
sp.Open();
WriteTime(sp, intHoras, intMinutos);
WriteTime(sp, intHoras1, intMinutos1);
WriteTime(sp, intHoras2, intMinutos2);
WriteTime(sp, intHoras3, intMinutos3);
WriteTime(sp, intHoras4, intMinutos4);
WriteTime(sp, intHoras5, intMinutos5);
DateTime date = new DateTime();
TimeSpan ts = new TimeSpan(0, intHoras, intMinutos + 2);
date = date + ts;
lblTime.Content = date.ToLongTimeString();
DispatcherTimer timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromSeconds(1);
timer.Tick += timer_Tick;
timer.Start();
}
else
{
MessageBoxResult result = MessageBox.Show("Ingresaste datos incorrectos", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void WriteTime(SerialPort sp, int intHoras, int intMinutos)
{
List<byte[]> horas = getVectorNumber(intHoras);
List<byte[]> minutos = getVectorNumber(intMinutos);
foreach (byte[] item in horas)
{
sp.Write(item, 0, 1);
}
foreach (byte[] item in minutos)
{
sp.Write(item, 0, 1);
}
}
private List<byte[]> getVectorNumber(int number)
{
List<byte[]> result = new List<byte[]>();
result.Add(Encoding.ASCII.GetBytes(Convert.ToString(number / 10)));
result.Add(Encoding.ASCII.GetBytes(Convert.ToString(number % 10)));
return result;
}
#region NumericValidation
private void textBoxValue_PreviewTextInput(object sender, TextCompositionEventArgs e)
{
e.Handled = !TextBoxTextAllowed(e.Text);
}
private void textBoxValue_Pasting(object sender, DataObjectPastingEventArgs e)
{
if (e.DataObject.GetDataPresent(typeof(String)))
{
String Text1 = (String)e.DataObject.GetData(typeof(String));
if (!TextBoxTextAllowed(Text1)) e.CancelCommand();
}
else e.CancelCommand();
}
#endregion
private Boolean TextBoxTextAllowed(String Text2)
{
return Array.TrueForAll<Char>(Text2.ToCharArray(),
delegate(Char c) { return Char.IsDigit(c) || Char.IsControl(c); });
}
}XAML
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