CH9121搜索配置协议.pdf

CH9121 索配置协议 一、通讯方式 CH9121 通过UDP 广播方式进行网络配置功能。 CH9121 广播本地接收端口：50000，上位机广播本地接收端口：60000。 二、通讯结构体 CH9121 和上位机通讯数据包格式为： typedef struct NET_COMM { unsigned char flag [16]; //通信标识，CH9121_CFG_FLAG unsigned char cmd; //命令头 unsigned char id[6]; //CH9121MAC 地址 unsigned char pcid [6]; //PC 的MAC 地址 unsigned char len; //数据区长度 unsigned char data [NET_MODULE_DATA_LENGTH]; //数据区缓冲区 }net_comm,*pnet_comm; 其中在配置和获取配置阶段data[NET_MODULE_DATA_LENGTH]结构如下： __packed typedef struct _NET_DEV ICE_CONFIG { DeviceHWConfigS HWCfg; /*网络参数结构体*/ DevicePortConfigS PortCfg[2]; /*透传通道参数*/ }NetDev iceConfigS,*pNetDev iceConfigS; 其中 PortCfg[1]为默认开启的透传通道，并且支持手册全部功能，建议使用单通道的时候 默认使用此透传通道。 PortCfg[0]为辅助端口，仅支持基本透传功能。 详细结构体定义参 文件：ModuleConfig.h 三、通讯过程 CH9121 上位机配置功能主要包括：1、搜索，2、获取配置 3、配置 4、恢复出厂设置。 下文结合通讯数据包解析设置流程： 1、搜索 ‡PC 下发的 索包 43 48 39 31 32 31 5F 43 46 47 5F 46 4C 41 47 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 flCH9121 回复的应答包 （应答包括：IP地址，设备名，芯片版本） 43 48 39 31 32 31 5F 43 46 47 5F 46 4C 41 47 00 84