m5310模组数据上传至onenet_NB-IoT模块 YNH-M5310A全网通接入OneNET平台MQTT协议实现数据传输...

void ClearRAM(u8* ram,u32 n)

{

u32 i;

for (i = 0;i < n;i++)

{

ram[i] = 0x00;

}

}

//构建MQTT连接包

u16 mqtt_connect_message(char *mqtt_message,char *PROID,char *AUTH_INFO,char *DEVID)

{

//        char HTTP_Buf[400]; //HTTP报文缓存区

char str[500];

char strHEX[500];

u16 PROID_length = strlen(PROID);

u16 DEVID_length = strlen(DEVID);

u16 AUTH_INFO_length = strlen(AUTH_INFO);

u16 MQTT_length = strlen("MQTT");

u16 packetLen;

u16 i,baseIndex;

ClearRAM((u8*)str,200); //清空commandAT数据包缓存，发送命令包含ip端口和长度

ClearRAM((u8*)strHEX,200); //清空locationHex数据包缓存，转换为hex 需要发送的真实数据

packetLen = 12;//固定的数据头长度

if(PROID_length > 0)

packetLen = packetLen + 2 + PROID_length;

if(DEVID_length > 0)

packetLen = packetLen+ 2 + DEVID_length;

if(AUTH_INFO_length > 0)

packetLen = packetLen+ 2 + AUTH_INFO_length;

strncpy((char*)(mqtt_message+strlen((char*)mqtt_message)),"10",2);

sprintf(strHEX,"%02x",(packetLen-2));

strcat(mqtt_message,strHEX);

ClearRAM((u8*)str,200); //清空commandAT数据包缓存，发送命令包含ip端口和长度

ClearRAM((u8*)strHEX,200); //清空locationHex数据包缓存，转换为hex 需要发送的真实数据

strcat(mqtt_message,"00044D51545404C00100");

//装载设备ID到数据包

sprintf(str, "%02x%02x",((0xff00&(DEVID_length))>>8),(0xff&DEVID_length));

strcat(mqtt_message,str);

ClearRAM((u8*)str,200);

sprintf(str, "%s",DEVID);

Str2Hex((char*)str,(char*)strHEX);

strcat(mqtt_message,strHEX);

ClearRAM((u8*)str,200);

ClearRAM((u8*)strHEX,200);

//装载产品ID到数据包

sprintf(str, "%02x%02x",((0xff00&(PROID_length))>>8),(0xff&PROID_length));

strcat(mqtt_message,str);

ClearRAM((u8*)str,200);

sprintf(str, "%s",PROID);

Str2Hex((char*)str,(char*)strHEX);

strcat(mqtt_message,strHEX);

ClearRAM((u8*)str,200);

ClearRAM((u8*)strHEX,200);

//装载产品ID到数据包

sprintf(str, "%02x%02x",((0xff00&(AUTH_INFO_length))>>8),(0xff&AUTH_INFO_length));

strcat(mqtt_message,str);

ClearRAM((u8*)str,200);

sprintf(str, "%s",AUTH_INFO);

Str2Hex((char*)str,(char*)strHEX);

strcat(mqtt_message,strHEX);

ClearRAM((u8*)str,200);

ClearRAM((u8*)strHEX,200);

Str2Hex((char*)str,(char*)strHEX);

strcat(mqtt_message,strHEX);

strcat(mqtt_message,"rn");

return packetLen;

}

//构建MQTT数据包

u16 mqtt_SendData_message(char *mqtt_messageHEX,char *SendData,short length)

{

char str[200];

char strHEX[200];

u16 packetLen=length+8;

u16 SendData_length = strlen(SendData);

strncpy((char*)(mqtt_messageHEX+strlen((char*)mqtt_messageHEX)),"30",2);

sprintf(strHEX,"%02x",(packetLen));

strcat(mqtt_messageHEX,strHEX);

ClearRAM((u8*)str,200); //清空commandAT数据包缓存，发送命令包含ip端口和长度

ClearRAM((u8*)strHEX,200); //清空locationHex数据包缓存，转换为hex 需要发送的真实数据

strcat(mqtt_messageHEX,"01000324647001");

//装载json数据到数据包

sprintf(str, "%02x%02x",((0xff00&(SendData_length))>>8),(0xff&SendData_length));

strcat(mqtt_messageHEX,str);

ClearRAM((u8*)str,200);

sprintf(str, "%s",SendData);

Str2Hex((char*)str,(char*)strHEX);

strcat(mqtt_messageHEX,strHEX);

ClearRAM((u8*)str,200);

ClearRAM((u8*)strHEX,200);

return packetLen;

}