安信可 tcp_server Example示例

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.

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

Server default configuration

  • IP Address: station IPv4 addr

  • 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.

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

 (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：

(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.