CameraMachine/python/mcu/DeviceControl.py

import serial.tools.list_ports
import time
# mcu命令
class DeviceControl:

    def scan_serial_port(self) -> dict:
        # 获取所有可用串口列表
        ports_dict = {}
        ports = serial.tools.list_ports.comports()
        # 遍历所有端口并打印信息
        for port in ports:
            if "CH340" in port.description:
                ports_dict[port.name] = {
                    "name": port.name,
                    "device": port.device,
                    "description": port.description,
                    "hwid": port.hwid,
                    "manufacturer": port.manufacturer,
                    "product": port.product,
                    "serial_number": port.serial_number,
                }
        if len(ports_dict) <= 0:
            return {}
        return ports_dict

    def add_port(self, port_name, port_value=None):
        # port_value :串口基础信息
        # todo 根据prot_value 信息自动进行连接
        print("add", port_name)
        # 对没有连接的设备进行尝试连接
        self.sign_data.emit(
            {
                "_type": "show_info",
                "plugins_mode": "auto_select_com",
                "data": {"text": "开始识别接口：{}".format(port_name)},
            }
        )
        time.sleep(1)
        """
        步骤：
        1、进行临时连接，并发送命令，成功后，自动连接对应设备
        """
        try:
            # 尝试使用115200波特率链接
            serial_handle = serial.Serial(port=port_name, baudrate=115200, timeout=0.5)
        except:
            self.sign_data.emit(
                {
                    "_type": "show_info",
                    "plugins_mode": "auto_select_com",
                    "data": {"text": "串口：{} 被占用,或无法识别".format(port_name)},
                }
            )
            print("串口：{} 被占用".format(port_name))
            return

        time.sleep(2)
        print("开始发送命令")
        data = [90, 1]
        try:
            serial_handle.flushInput()  # 尝试重置输入缓冲区
        except serial.SerialTimeoutException:
            print("超时错误：无法在规定时间内重置输入缓冲区。")
            serial_handle.close()
            return
        print("尝试写入数据")

        buf = bytearray(b"")
        buf.extend([0x55, 0x55, (0xFF & len(data))])
        buf.extend(data)
        buf.extend([0xFF & ~sum(data)])
        try:
            self.receive_data = b""
            serial_handle.write(buf)
        except serial.SerialTimeoutException:
            print("写入数据错误")
            serial_handle.close()
            return

        time.sleep(0.3)
        print("尝试接收命令")
        receive_data = self.read_cmd(serial_handle)
        device_id = 0

        if receive_data:
            print("receive_data", receive_data)
            if receive_data[0] == 90:
                connect_flag = receive_data[1]
                device_id = receive_data[2]

        print("关闭串口：{}".format(port_name))
        serial_handle.close()

        if device_id > 0:
            if device_id == 1:
                self.windows.mcu.to_connect_com(port_name, is_test=False)
                self.sign_data.emit(
                    {
                        "_type": "show_info",
                        "plugins_mode": "auto_select_com",
                        "data": {"text": "MCU开始连接"},
                    }
                )
                self.connected_ports_dict[port_name] = "MCU"
            if device_id == 2:
                self.windows.remote_control.to_connect_com(port_name, is_test=False)
                self.sign_data.emit(
                    {
                        "_type": "show_info",
                        "plugins_mode": "auto_select_com",
                        "data": {"text": "开始连接遥控器"},
                    }
                )
                self.connected_ports_dict[port_name] = "有线遥控器"

            # RemoteControlV2 新版遥控器 2024-12-02
            if device_id == 4:
                self.windows.remote_control_v2.to_connect_com(port_name, is_test=False)
                self.sign_data.emit(
                    {
                        "_type": "show_info",
                        "plugins_mode": "auto_select_com",
                        "data": {"text": "开始连接遥控器V2"},
                    }
                )
                self.connected_ports_dict[port_name] = "无线遥控器V2"

            self.sign_data.emit(
                {
                    "_type": "select_port_name",
                    "plugins_mode": "auto_select_com",
                    "data": {
                        "device_name": "mcu" if device_id == 1 else "remote_control",
                        "port_name": port_name,
                    },
                }
            )
        else:
            print("串口无法识别")
            # 走其他途径处理

        # 检查当前MCU链接是否正常
        # 正常跳过；记录为其他列表
        # 不正常进行尝试连接
        # 连接不上，记录为其他列表