安信可 udp_server示例
======

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=========
udp_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 UDP_SERVER_PORT 7878

The current project supports simultaneous access of `4 clients`, you are at `src/udp_ 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
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Server started successfully
:::::::::

 .. code-block:: c
   
   (other log)...
   [WF][SM] Exiting connecting state
   [WF][SM] State Action ###connecting### --->>> ###wifiConnected_ipObtaining###
   [WF][PF] Using profile, idx is @0
   [WF][SM] Entering wifiConnected_ipObtaining state
   [WF][SM] DHCP Starting...0x42014a5c
   [APP] [EVT] connected 4488
   -----------------> 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: 0
   tid 0
   IP:192.168.1.100
   MASK: 255.255.255.0
   Gateway: 192.168.1.1
   [lwip] netif status callback
   IP: 192.168.1.100
   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 5093
   [SYS] Memory left is 156144 Bytes
   udp server start ip:192.168.1.100:7878

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

 .. code-block:: c

   (other log)...
   [     10402][INFO: main.c:  65] 192.168.1.106:hellc
   [     12005][INFO: main.c:  65] 192.168.1.106:hellc
   [     12758][INFO: main.c:  65] 192.168.1.106:hellc
   [     17812][INFO: main.c:  65] 192.168.1.107:Hello Server
   [     18516][INFO: main.c:  65] 192.168.1.107:Hello Server
   [     19070][INFO: main.c:  65] 192.168.1.107:Hello Server
   [     19874][INFO: main.c:  65] 192.168.1.107:Hello Server
   [     20428][INFO: main.c:  65] 192.168.1.107:Hello Server
   [     20832][INFO: main.c:  65] 192.168.1.107:Hello Server
   [     21286][INFO: main.c:  65] 192.168.1.107:Hello Server
   [     52940][INFO: main.c:  65] 192.168.1.107:close

When a `close` is received, the current connection is closed.

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.