安信可 tcp_server Example示例
======

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=========
tcp_server Example
=========

Configuration project
>>>>>>>>>
By default, the connected wifi AP in this project is `ssid="ssid"` and `password="password"`.
You need to modify it according to your own AP configuration.

 .. code-block:: c

    #define ROUTER_SSID "ssid"
    #define ROUTER_PWD "password"

**Server default configuration**

- IP Address: station IPv4 addr
- Port: `7878`

 .. code-block:: c
   #define TCP_SERVER_PORT 7878

The current project supports simultaneous access of `4 clients`, you are at `src/tcp_ Server.c` can modify the following macro definitions to modify the maximum number of connections.

 .. code-block:: c
   #define MAX_CLIENT_NUM 4

build and download
>>>>>>>>>

Compile with instructions and download firmware.

make -j16 flash p=/dev/ttyUSB0 b=921600

**j16 is the number of cores in the system**

Example Output
>>>>>>>>>

 Server started successfully
 :::::::::

 .. code-block:: c
   
   (other log)...
   [WF][PF] Using profile, idx is @0
   [WF][SM] Entering wifiConnected_ipObtaining state
   [WF][SM] DHCP Starting...0x42014b74
   [APP] [EVT] connected 4448
   -----------------> AABA Request:
   A-MSDU: Permitted
   Block Ack Policy: Immediate Block Ack
   TID: 0
   Number of Buffers: 64
   -----------------> AABA Response:
   A-MSDU: Not Permitted
   Block Ack Policy: Immediate Block Ack
   TID: 0
   Number of Buffers: 8
   ssn: 0
   timeout: 1
   tid 0
   IP:192.168.1.105
   MASK: 255.255.255.0
   Gateway: 192.168.1.1
  [lwip] netif status callback
  IP: 192.168.1.105
  MK: 255.255.255.0
  GW: 192.168.1.1
  [WF][SM] Exiting wifiConnected_ipObtaining state
  [WF][SM] State Action ###wifiConnected_ipObtaining### --->>> ###wifiConnected_IPOK###
  [WF][SM] Entering wifiConnected_IPOK state
  [APP] [EVT] GOT IP 5594
  [SYS] Memory left is 155872 Bytes
  tcp server start ip:192.168.1.105:7878
  tcp server listening.....

Message Receiving and Sending
 :::::::::

When the client access succeeds, the server forwards the message to the client when it receives it：

 .. code-block:: c

   (other log)...
   client:192.168.1.106:1,id:0
   client:192.168.1.106:2,id:1
   192.168.1.106:Jdkdj
   192.168.1.106:Jdkdj
   192.168.1.106:Jdkdj
   192.168.1.106:Jdkdj
   192.168.1.106:Jdkdj
   192.168.1.106:Jdkdj
   ...

   
Troubleshooting
:::::::::
For any technical queries, please open an [issue](https://github.com/Ai-Thinker-Open/Ai-Thinker-WB2/issues) on GitHub. We will get back to you soon.