WINC1500 HTTP Downloader Example for SAMD21 XPlained Pro Documentation

Introduction

This example demonstrates how to connect to an HTTP server and download a file using HTTP client.
It uses the following hardware:

• the SAM Xplained Pro.
• the WINC1500 on EXT1.
• the IO1 Xplained Pro on EXT2.

Main Files

• main.c : Initialize the SD card and WINC1500 Wi-Fi module, then download a file using HTTP client.

Usage

1. Configure below code in the main.h for AP information to be connected.

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

2. Configure HTTP URL macro in the main.h file.

   *    #define MAIN_HTTP_FILE_URL                   "http://www.microchip.com/Images/45093A-SmartConnectWINC1500_E_US_101014_web.pdf"
   * 

3. Build the program and download it into the board.
4. On the computer, open and configure a terminal application as following.

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

5. Start the application.
6. In the terminal window, the following text should appear:
   

*    -- HTTP file downloader example --
*    -- SAMXXX_XPLAINED_PRO --
*    -- Compiled: xxx xx xxxx xx:xx:xx --
*
*    This example requires the AP to have internet access.
*
*    init_storage: please plug an SD/MMC card in slot...
*    init_storage: mounting SD card...
*    init_storage: SD card mount OK.
*    main: connecting to WiFi AP DEMO_AP...
*    wifi_cb: M2M_WIFI_CONNECTED
*    wifi_cb: IP address is 192.168.1.107
*    start_download: sending HTTP request...
*    resolve_cb: www.atmel.com IP address is 72.246.56.186
*
*    http_client_callback: HTTP client socket connected.
*    http_client_callback: request completed.
*    http_client_callback: received response 200 data size 1147097
*    store_file_packet: creating file [0:45093A-SmartConnectWINC1500_E_US_101014_web.pdf]
*    store_file_packet: received[xxx], file size[1147097]
*    ...
*    store_file_packet: received[1147097], file size[1147097]
*    store_file_packet: file downloaded successfully.
*    main: please unplug the SD/MMC card.
*    main: done.
* 

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.