WINC1500 Wi-Fi Serial Example for SAML21 XPlained Pro B Documentation

Introduction

This example demonstrates how to emulate a serial port between two devices. It reads input data from serial interface and sends it via Wi-Fi connection. The EDBG interface will print out messages you typed or received, hence simulating a chat application. To run this example you need to prepare two pairs of SAMD21 Xplained Pro board with WINC1500 extension (on EXT1 slot).

Main Files

• main.c : Initialize device and USART interface. Create TCP sockets, send/receive messages and print out them on the EDBG interface.

Usage

1. Configure below code in the main.h for AP to connect to.

   *    #define MAIN_WLAN_SSID              "DEMO_AP"
   *    #define MAIN_WLAN_AUTH              M2M_WIFI_SEC_WPA_PSK
   *    #define MAIN_WLAN_PSK               "12345678"
   * 

2. Build the program and download it into each board.
3. On the computer, open and configure a terminal application as the follows.

   *    Baud Rate : 115200
   *    Data : 8bit
   *    Parity bit : none
   *    Stop bit : 1bit
   *    Flow control : none
   * 

4. Start the application.
5. On the terminal window, the following text should appear:

   *    -- WINC1500 Wi-Fi Serial example --
   *    -- SAMD21_XPLAINED_PRO --
   *    -- Compiled: xxx xx xxxx xx:xx:xx --
   *    Wi-Fi connected.
   *    Wi-Fi IP is xxx.xxx.xxx.xxx
   *    socket_cb: bind success.
   *    socket_cb: listen success.
   * 

6. Check IP address of each board and execute connection on one device by typing the below command on the terminal window with the other device's address. Use prefix "<<" to execute local commands.

   *    <<connect xxx.xxx.xxx.xxx
   * 

7. If connected, the following text should appear:

   *    [Local device]
   *    Connecting to [xxx.xxx.xxx.xxx] ...
   *    Socket connect success.
   *
   *    [Remote device]
   *    Socket accept success.
   * 

8. Type messages on the terminal window and you will see the sent/received messages.
9. You can control LED on the remote device by typing the following command. Use prefix ">>" to execute remote commands.

   *    >>control ledon
   *    or
   *    >>control ledoff
   * 

Compilation Information

This software was written for the GNU GCC compiler using Atmel Studio 6.2 Other compilers may or may not work.

Contact Information

For further information, visit Microchip.