d53c41c300
- 在AndroidManifest.xml中添加USB Host权限和设备过滤器配置 - 新增设备控制国际化词条包括速度档位、吹气时间等 - 重构数据库结构将速度相关字段统一为档位数值存储 - 添加通用KV存储方法用于settings表数据读写 - 优化首页导航实现tab间跳转和状态保持功能 - 更新程序详情页面布局和参数表单界面 - 移除模拟运行器相关测试代码 - 添加USB串口通信依赖包usb_serial
127 lines
3.6 KiB
Dart
127 lines
3.6 KiB
Dart
import 'dart:convert';
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/// 串口奇偶校验
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enum SerialParity { none, odd, even, mark, space }
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/// 串口流控
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enum SerialFlowControl { none, rtsCts, xonXoff, dtrDsr }
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/// 串口配置
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///
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/// 持久化到 settings 表的 `serial_config` key 中；
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/// 打开串口时根据此配置构造底层 `UsbConfig`。
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class SerialConfig {
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/// 设备 Vendor ID（十六进制）
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final int vendorId;
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/// 设备 Product ID（十六进制），0 表示不指定
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final int productId;
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/// 波特率
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final int baudRate;
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/// 数据位 (5/6/7/8)
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final int dataBits;
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/// 停止位 (1/2)
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final int stopBits;
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/// 校验位
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final SerialParity parity;
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/// 流控
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final SerialFlowControl flowControl;
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/// 读超时（毫秒）
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final int readTimeoutMs;
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/// 写超时（毫秒）
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final int writeTimeoutMs;
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const SerialConfig({
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this.vendorId = 0x1A86,
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this.productId = 0x7523,
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this.baudRate = 9600,
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this.dataBits = 8,
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this.stopBits = 1,
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this.parity = SerialParity.none,
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this.flowControl = SerialFlowControl.none,
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this.readTimeoutMs = 2000,
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this.writeTimeoutMs = 2000,
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});
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/// 默认配置
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static const SerialConfig defaults = SerialConfig();
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/// 常用波特率
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static const List<int> commonBaudRates = [
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1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800,
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];
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SerialConfig copyWith({
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int? vendorId,
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int? productId,
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int? baudRate,
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int? dataBits,
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int? stopBits,
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SerialParity? parity,
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SerialFlowControl? flowControl,
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int? readTimeoutMs,
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int? writeTimeoutMs,
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}) {
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return SerialConfig(
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vendorId: vendorId ?? this.vendorId,
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productId: productId ?? this.productId,
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baudRate: baudRate ?? this.baudRate,
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dataBits: dataBits ?? this.dataBits,
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stopBits: stopBits ?? this.stopBits,
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parity: parity ?? this.parity,
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flowControl: flowControl ?? this.flowControl,
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readTimeoutMs: readTimeoutMs ?? this.readTimeoutMs,
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writeTimeoutMs: writeTimeoutMs ?? this.writeTimeoutMs,
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);
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}
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/// 编码为 JSON 字符串（用于持久化）
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String toJsonString() => jsonEncode({
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'vendorId': vendorId,
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'productId': productId,
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'baudRate': baudRate,
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'dataBits': dataBits,
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'stopBits': stopBits,
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'parity': parity.name,
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'flowControl': flowControl.name,
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'readTimeoutMs': readTimeoutMs,
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'writeTimeoutMs': writeTimeoutMs,
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});
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/// 从 JSON 字符串解码；解析失败时返回默认值
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factory SerialConfig.fromJsonString(String? raw) {
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if (raw == null || raw.isEmpty) return defaults;
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try {
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final map = jsonDecode(raw) as Map<String, dynamic>;
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return SerialConfig(
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vendorId: (map['vendorId'] as num?)?.toInt() ?? defaults.vendorId,
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productId: (map['productId'] as num?)?.toInt() ?? defaults.productId,
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baudRate: (map['baudRate'] as num?)?.toInt() ?? defaults.baudRate,
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dataBits: (map['dataBits'] as num?)?.toInt() ?? defaults.dataBits,
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stopBits: (map['stopBits'] as num?)?.toInt() ?? defaults.stopBits,
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parity: SerialParity.values.firstWhere(
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(e) => e.name == map['parity'],
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orElse: () => defaults.parity,
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),
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flowControl: SerialFlowControl.values.firstWhere(
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(e) => e.name == map['flowControl'],
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orElse: () => defaults.flowControl,
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),
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readTimeoutMs:
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(map['readTimeoutMs'] as num?)?.toInt() ?? defaults.readTimeoutMs,
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writeTimeoutMs:
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(map['writeTimeoutMs'] as num?)?.toInt() ?? defaults.writeTimeoutMs,
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);
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} catch (_) {
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return defaults;
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}
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}
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}
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