WIZnet
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
- D0 is for RXD, D1 is for TXD
- D6 is for CTS, D7 is for RTS
- D9 is for RESET
WizFi310 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.
Revision 0:50932ef4b276, committed 2017-04-17
- Comitter:
- kaizen
- Date:
- Mon Apr 17 06:45:17 2017 +0000
- Child:
- 1:5981ba4a8323
- Commit message:
- Added TCP Echo Server Example using WizFi310
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NetworkSocketAPI.lib Mon Apr 17 06:45:17 2017 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/teams/NetworkSocketAPI/code/NetworkSocketAPI/#ea3a618e0818
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WizFi310Interface.lib Mon Apr 17 06:45:17 2017 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/teams/WIZnet/code/WizFi310Interface/#176b6f3addd6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Apr 17 06:45:17 2017 +0000
@@ -0,0 +1,81 @@
+/* NetworkSocketAPI Example Program
+ * Copyright (c) 2015 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "mbed.h"
+#include "TCPSocket.h"
+#include "mbed.h"
+#include "WizFi310Interface.h"
+#include "TCPSocket.h"
+#include "TCPServer.h"
+
+#define TARGET_NUCLEO_F411RE
+
+
+#if defined(TARGET_NUCLEO_F411RE)
+Serial pc(USBTX, USBRX);
+//WizFi310Internet wifi(PA_11, PA_12, D6, D7, D3, NC, 115200);
+WizFi310Interface wifi(D8, D2, D7, D6, D9, NC, 115200);
+#endif
+
+#if defined(TARGET_WIZwiki_W7500)
+Serial pc(USBTX, USBRX);
+WizFi310Interface wifi(D1, D0, D7, D6, D8, NC, 115200);
+#endif
+
+#define AP_SSID "DIR-815_Wiznet"
+#define AP_PASSWORD "12345678"
+#define AP_SECURITY NSAPI_SECURITY_WPA2
+
+int main()
+{
+ pc.baud(115200);
+ printf("WizFi310 NetworkSocketAPI TCP Client Example\r\n");
+
+ wifi.connect(AP_SSID, AP_PASSWORD, AP_SECURITY);
+
+ const char *ip = wifi.get_ip_address();
+ const char *mac = wifi.get_mac_address();
+ printf("IP address is: %s\r\n", ip ? ip : "No IP");
+ printf("MAC address is: %s\r\n", mac ? mac : "No MAC");
+
+ TCPServer srv;
+ TCPSocket clt_sock;
+ SocketAddress clt_addr;
+
+ srv.open(&wifi);
+ srv.set_blocking(true);
+ srv.bind(80);
+ srv.listen();
+ srv.accept(&clt_sock);
+
+ char buffer[512];
+
+ 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);
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Apr 17 06:45:17 2017 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/mbed_official/code/mbed/builds/97feb9bacc10 \ No newline at end of file