license_plate_recognition/bx/BxCmdState.py

from .BxCmd import baseBxCmd
from .BxCmdCode import CMD_SYSTEM_STATE


class CmdState(baseBxCmd):
    """系统状态命令"""
    def __init__(self):
        super().__init__(CMD_SYSTEM_STATE.group, CMD_SYSTEM_STATE.code)

    def Build(self):
        """构建命令数据"""
        result = bytearray()
        # 写入命令组
        result.append(self.Group())
        # 写入命令
        result.append(self.Cmd())
        # 写入响应标志
        result.append(self.ReqResp())
        # 写入保留字r0 r1
        result.append(0x00)
        result.append(0x00)
        return bytes(result)


# 创建CmdState实例的函数
def NewCmdState():
    """创建系统状态命令实例"""
    return CmdState()