feat: add CAN board test tool and timing safeguards
This commit is contained in:
shenlefengnai-rgb
@@ -0,0 +1,194 @@
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using System.Collections.ObjectModel;
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using System.Globalization;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Threading;
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using SDCAcqDacTester.Can;
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namespace SDCAcqDacTester;
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public partial class MainWindow : Window
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{
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private const uint HeartbeatId = 0x6A0;
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private const uint AdcId = 0x6A1;
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private const uint PwmId = 0x6A2;
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private const uint DacCommandId = 0x6A3;
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private const uint DacAckId = 0x6A4;
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private const uint AssiCommandId = 0x6A5;
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private const uint GpioId = 0x6A6;
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private readonly ObservableCollection<LogRow> _rows = [];
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private readonly DispatcherTimer _holdTimer;
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private ControlCanTransport? _can;
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private bool _holdDac1;
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private bool _holdDac2;
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public MainWindow()
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{
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InitializeComponent();
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LogGrid.ItemsSource = _rows;
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_holdTimer = new DispatcherTimer { Interval = TimeSpan.FromMilliseconds(50) };
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_holdTimer.Tick += HoldTimer_Tick;
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}
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private void ConnectButton_Click(object sender, RoutedEventArgs e)
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{
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try
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{
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if (!uint.TryParse(DeviceIndexBox.Text, out uint index)) throw new InvalidOperationException("设备索引必须为非负整数。");
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_can = new ControlCanTransport();
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_can.FrameReceived += Can_FrameReceived;
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_can.ReceiveError += Can_ReceiveError;
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_can.Open(index, (uint)ChannelBox.SelectedIndex);
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ConnectionText.Text = $"已连接：USBCAN-II / CAN{ChannelBox.SelectedIndex + 1}";
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ConnectionText.Foreground = System.Windows.Media.Brushes.LightGreen;
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ConnectButton.IsEnabled = false;
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DisconnectButton.IsEnabled = true;
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AddLog("SYS", "-", [], "已连接，500 kbit/s 正常模式。");
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}
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catch (Exception ex) { ShowError(ex.Message); }
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}
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private void DisconnectButton_Click(object sender, RoutedEventArgs e) => Disconnect();
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private void SendDac1Once_Click(object sender, RoutedEventArgs e) => SendDac(1, ReadVolts(Dac1Box));
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private void SendDac2Once_Click(object sender, RoutedEventArgs e) => SendDac(2, ReadVolts(Dac2Box));
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private void HoldDac1Button_Click(object sender, RoutedEventArgs e)
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{
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_holdDac1 = !_holdDac1;
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HoldDac1Button.Content = _holdDac1 ? "停止保持" : "开始保持";
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UpdateHoldTimer();
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}
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private void HoldDac2Button_Click(object sender, RoutedEventArgs e)
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{
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_holdDac2 = !_holdDac2;
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HoldDac2Button.Content = _holdDac2 ? "停止保持" : "开始保持";
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UpdateHoldTimer();
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}
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private void HoldTimer_Tick(object? sender, EventArgs e)
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{
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try
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{
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if (_holdDac1) SendDac(1, ReadVolts(Dac1Box));
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if (_holdDac2) SendDac(2, ReadVolts(Dac2Box));
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}
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catch (Exception ex)
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{
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_holdDac1 = _holdDac2 = false;
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HoldDac1Button.Content = HoldDac2Button.Content = "开始保持";
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UpdateHoldTimer();
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ShowError(ex.Message);
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}
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}
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private void Assi_Click(object sender, RoutedEventArgs e)
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{
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if (sender is not Button { Tag: string value } || !byte.TryParse(value, out byte state)) return;
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Send(AssiCommandId, [state], $"ASSI 状态={state}");
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}
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private void SendRaw_Click(object sender, RoutedEventArgs e)
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{
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try
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{
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uint id = uint.Parse(RawIdBox.Text.Trim().Replace("0x", "", StringComparison.OrdinalIgnoreCase), NumberStyles.HexNumber, CultureInfo.InvariantCulture);
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byte[] data = string.IsNullOrWhiteSpace(RawDataBox.Text) ? [] : RawDataBox.Text.Split([' ', ',', ';'], StringSplitOptions.RemoveEmptyEntries)
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.Select(x => byte.Parse(x.Replace("0x", "", StringComparison.OrdinalIgnoreCase), NumberStyles.HexNumber, CultureInfo.InvariantCulture)).ToArray();
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Send(id, data, "手工帧");
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}
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catch (Exception ex) { ShowError($"手工帧格式错误：{ex.Message}"); }
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}
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private void SendDac(byte dac, ushort millivolts)
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{
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Send(DacCommandId, [dac, (byte)(millivolts & 0xFF), (byte)(millivolts >> 8)], $"DAC{dac}={millivolts} mV");
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}
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private void Send(uint id, byte[] data, string description)
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{
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try
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{
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if (_can is not { IsOpen: true }) throw new InvalidOperationException("请先连接 CAN。 ");
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_can.SendStandard(id, data);
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AddLog("TX", $"0x{id:X3}", data, description);
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}
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catch (Exception ex) { ShowError(ex.Message); }
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}
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private static ushort ReadVolts(TextBox box)
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{
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if (!decimal.TryParse(box.Text, NumberStyles.Number, CultureInfo.InvariantCulture, out decimal volts) &&
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!decimal.TryParse(box.Text, NumberStyles.Number, CultureInfo.CurrentCulture, out volts))
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throw new InvalidOperationException("DAC 电压必须是 0 - 5 V 的数值。");
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if (volts is < 0 or > 5) throw new InvalidOperationException("DAC 电压范围为 0 - 5 V。");
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return (ushort)Math.Round(volts * 1000m, MidpointRounding.AwayFromZero);
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}
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private void Can_FrameReceived(object? sender, CanFrame frame) => Dispatcher.Invoke(() =>
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{
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string description = Decode(frame);
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AddLog("RX", frame.IsExtended ? $"0x{frame.Id:X8}" : $"0x{frame.Id:X3}", frame.Data, description, frame.Timestamp);
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});
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private void Can_ReceiveError(object? sender, string error) => Dispatcher.Invoke(() => ShowError($"接收异常：{error}"));
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private string Decode(CanFrame frame)
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{
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var d = frame.Data;
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switch (frame.Id)
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{
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case HeartbeatId when d.Length >= 8:
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string heartbeat = $"板号=0x{d[0]:X2} 协议={d[1]} 序号={U16(d, 2)} 运行={U32(d, 4)} ms";
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HeartbeatValue.Text = heartbeat; return heartbeat;
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case AdcId when d.Length >= 2:
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string adc = $"{U16(d, 0)} mV ({U16(d, 0) / 1000.0:F3} V)";
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AdcValue.Text = adc; return adc;
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case PwmId when d.Length >= 8:
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string pwm = string.Join(" / ", Enumerable.Range(0, 4).Select(i => $"{U16(d, i * 2)} Hz"));
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PwmValue.Text = pwm; return pwm;
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case DacAckId when d.Length >= 4:
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string ack = $"DAC{d[1]} {(d[0] == 1 ? "OK" : "ERR")} = {U16(d, 2)} mV";
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DacAckValue.Text = ack; return ack;
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case GpioId when d.Length >= 8:
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string gpio = $"状态=0x{U16(d, 0):X4} 变化=0x{U16(d, 2):X4} 时间={U32(d, 4)} ms";
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GpioValue.Text = gpio; return gpio;
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default: return "未定义帧";
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}
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}
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private static ushort U16(byte[] data, int offset) => (ushort)(data[offset] | (data[offset + 1] << 8));
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private static uint U32(byte[] data, int offset) => (uint)(data[offset] | (data[offset + 1] << 8) | (data[offset + 2] << 16) | (data[offset + 3] << 24));
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private void AddLog(string direction, string id, byte[] data, string description, DateTime? timestamp = null)
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{
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_rows.Insert(0, new LogRow((timestamp ?? DateTime.Now).ToString("HH:mm:ss.fff"), direction, id, data.Length.ToString(), BitConverter.ToString(data).Replace('-', ' '), description));
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while (_rows.Count > 500) _rows.RemoveAt(_rows.Count - 1);
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}
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private void UpdateHoldTimer()
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{
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if (_holdDac1 || _holdDac2) _holdTimer.Start(); else _holdTimer.Stop();
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}
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private void Disconnect()
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{
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_holdDac1 = _holdDac2 = false;
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_holdTimer.Stop();
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_can?.Dispose(); _can = null;
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ConnectionText.Text = "未连接"; ConnectionText.Foreground = System.Windows.Media.Brushes.Orange;
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ConnectButton.IsEnabled = true; DisconnectButton.IsEnabled = false;
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}
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private void ShowError(string message)
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{
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AddLog("ERR", "-", [], message);
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MessageBox.Show(message, "SDC-ACQ_DAC 测试工具", MessageBoxButton.OK, MessageBoxImage.Warning);
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}
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private void Window_Closing(object? sender, System.ComponentModel.CancelEventArgs e) => Disconnect();
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}
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public sealed record LogRow(string Time, string Direction, string Id, string Dlc, string Data, string Description);
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