WIZnet / Mbed 2 deprecated WizFi310_TCP_Echo_Server_Example

TCP Echo Server Example using WizFi310

Dependencies:   NetworkSocketAPI WizFi310Interface mbed

Prerequisite

This example shows that Wizwiki-W7500 and WizFi310 operates as a TCP server. When receiving data from a TCP client, it returns same data.

To implement this function, you need a Platform board and Wi-Fi board. Below are what we used.

  • WIZwiki-W7500 from WIZnet (Platform board)
  • WizFi310 from WIZnet (Wi-Fi board)

WIZwiki-W7500 Pin map

pin map

  • D0 is for RXD, D1 is for TXD
  • D6 is for CTS, D7 is for RTS
  • D9 is for RESET

WizFi310 Pin map

pin map

  • J1 is for RXD, J3 is for TXD
  • SW6-1 is connected to D6 for RTS, SW6-2 is connected to D7 for CTS
  • SW5-3 is connected to D9 for RESET

Software

Connect to Wi-Fi

wifi.connect(AP_SSID, AP_PASSWORD, AP_SECURITY);

Get information

const char *ip = wifi.get_ip_address();
const char *mac = wifi.get_mac_address();

Receive data and return to TCP client

while (true)
{
    int n = clt_sock.recv(buffer, sizeof(buffer));
    if( n < 0 )
    {
        clt_sock.close();
        srv.close();
    }
    if( n > 0 )
    {
        buffer[n] = '\0';
        printf("length : %d\r\n", n);
        clt_sock.send(buffer, n);
    }
}

Caution

TCP client and server should be in a same network.

Diff: main.cpp

Revision:
1:5981ba4a8323
Parent:
0:50932ef4b276
--- a/main.cpp	Mon Apr 17 06:45:17 2017 +0000
+++ b/main.cpp	Tue Apr 18 00:57:35 2017 +0000
@@ -25,9 +25,9 @@
 
 
 #if defined(TARGET_NUCLEO_F411RE)
-Serial pc(USBTX, USBRX);
+//Serial pc(USBTX, USBRX);
 //WizFi310Internet wifi(PA_11, PA_12, D6, D7, D3, NC, 115200);
-WizFi310Interface wifi(D8, D2, D7, D6, D9, NC, 115200);
+//WizFi310Interface wifi(D8, D2, D7, D6, D9, NC, 115200);
 #endif
 
 #if defined(TARGET_WIZwiki_W7500)
@@ -35,14 +35,14 @@
 WizFi310Interface wifi(D1, D0, D7, D6, D8, NC, 115200);
 #endif
 
-#define AP_SSID "DIR-815_Wiznet"
-#define AP_PASSWORD "12345678"
+#define AP_SSID "wizms1"
+#define AP_PASSWORD "maker0701"
 #define AP_SECURITY NSAPI_SECURITY_WPA2
 
 int main()
 {
     pc.baud(115200);
-    printf("WizFi310 NetworkSocketAPI TCP Client Example\r\n");
+    printf("WizFi310 NetworkSocketAPI TCP Server Example\r\n");
     
     wifi.connect(AP_SSID, AP_PASSWORD, AP_SECURITY);