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# 1.15 TCP/IP WEB NET Super Set SDCard FATFS

This application demo enables almost all the Application Layer modules in MPLAB® Harmony 3 TCP/IP Stack. It is also based on Web Net Server SD Card application.

## Description

The TCP/IP WEB NET Super Set SDCard FATFS application is based on MPLAB® Harmony 3 TCP/IP Stack.

The Harmony TCP/IP stack is a collection of different network protocols.

The source files of Harmony 3 TCP/IP stack is available here.

The demo is created with MPLAB X IDE and MCC plugin.

MCC Project Graph - TCP/IP WEB NET Super Set SDCard FATFS

The following Project Graph shows the Harmony components included in the TCP/IP WEB NET Super Set SDCard FATFS demo application.

Figure 1-72.Project Graph

wolfSSL component is added for secure connection which supports TLS.

wolfCrypt module enabled with MD5 and SHA authentication.

FILE SYSTEM is added to read and write from the SDMMC( sdcard ) module with FAT file system.

FreeRTOS component is required for RTOS application. For bare-metal (non-RTOS) FreeRTOS component should not be selected.

Note: The above diagram contains FreeRTOS component and that is required for RTOS application. For bare-metal(non-RTOS) FreeRTOS component should not be selected.

TCP/IP Configuration - TCP/IP WEB NET Super Set SDCard FATFS

The TCP/IP modules enabled for the demo is shown in the TCP/IP Configuration Overview.

More details of TCP/IP Configuration plugin is available here.

Figure 1-73.SAMA5D2 Xplained Ultra
Figure 1-74.SAMA5D29-Curiosity

The Application Layer modules enabled in the demo are as follows:

- Application Layer Modules
  - ANNOUNCE to discover the Microchip devices within a local network.
  - Berkeley API provides the Berkeley_Socket_Distribution (BSD) wrapper to the native Harmony TCP/IP Stack APIs.
  - DHCP Client to discover the IPv4 address from the nearest DHCP Server.
  - DHCP SERVER is used to assign IP addresses to DHCP clients from the configured IP address database.
  - DHCPv6 CLIENT module will allow your application to dynamically obtain an IPv6 address from a DHCPv6 server.
  - DNS Client provides DNS resolution capabilities to the stack. DNS CLIENT also known as the DNS Resolver, will try to resolve the IP address from its local resources, which includes the Name to Address mappings in the local DNS cache.
  - DNS SERVER translate domain names into IP addresses.
  - FTP CLIENT module allows application to upload the files to, and download the files from, any FTP server.
  - FTP SERVER facilitates the uploading of files to, and downloading of files from, a network device.
  - HTTPNET SERVER enables the target board to act as a Web Server for the secured port number 443.
  - IPERF implements the iPerf protocol to measure networking bandwidth and performance.
  - NBNS NetBIOS Name Service protocol associates host names with IP addresses. This assign of human-name host names to access boards on the same subnet.
  - SMTP CLIENT let applications send e-mails to any recipient worldwide.
  - SNTP Simple Network Time Protocol updates its internal time periodically using a pool of public global time servers.
  - TELNET provides bidirectional, interactive communication between two nodes on the Internet or on a Local Area Network.
  - TFTP CLIENT module supports reading and writing of files (or mail) from/to a remote server.
  - TFTP SERVER is a simple protocol used to transfer files. It waits for client requests to read and write files.
  - ZEROCONF, enables devices on an IP network to automatically configure themselves.

## Downloading and Building the application

To clone or download this application from Github, go to the main page of this repository and then click Clone button to clone this repository or download as zip file.

This content can also be downloaded using content manager by following these instructions.

Path of the application within the repository is apps\web_net_super_set_sdcard_fatfs\firmware.

To build the application, refer to the following list of demo configurations and open the project using MPLAB X IDE.

Table 1-15.Demo Configurations
Project Name | Target Device | Development Board | Description
--- | --- | --- | ---
sam_a5d2_xult.X | ATSAMA5D27 | SAMA5D2 Xplained Ultra | TCP/IP WEB NET Super Set SDCard FATFS Application with an on-board KSZ8081 PHY - Bare Metal
sam_a5d2_xult_freertos.X | ATSAMA5D27 | SAMA5D2 Xplained Ultra | TCP/IP WEB NET Super Set SDCard FATFS Application with an on-board KSZ8081 PHY - FreeRTOS
sam_a5d2_curiosity.X | ATSAMA5D29 | SAMA5D29-Curiosity | TCP/IP WEB NET Super Set SDCard FATFS Application with an external KSZ8041 PHY - Bare Metal
sam_a5d2_curiosity_freertos.X | ATSAMA5D29 | SAMA5D29-Curiosity | TCP/IP WEB NET Super Set SDCard FATFS Application with an external KSZ8041 PHY - FreeRTOS

## Hardware Setup - SAMA5D2 Xplained Ultra

The target board for running the application is SAMA5D2 Xplained Ultra.

This section provides essential hardware configuration of this target board to run TCP/IP applications.

Figure 1-75.SAMA5D2 Xplained Ultra Evaluation Kit

Board Setup

To set up the hardware, refer to the section Board Components in SAMA5D2 Xplained Ultra User Guide.

- Connect the micro USB cable from the computer to the EDBG USB connector on the SAMA5D2 Xplained Ultra Evaluation Kit.
- Insert the SD Card into the SDMMC slot of the board (through an MMC Adapter) as shown above.
- Establish a connection between the router/switch with the SAMA5D2 Xplained Ultra Evaluation Kit through the RJ45 connector.

## Hardware Setup - SAMA5D29-Curiosity

The target board for running the application is SAMA5D29-Curiosity.

This section provides essential hardware configuration of this target board to run TCP/IP applications.

Figure 1-76.SAMA5D29-Curiosity Development Board

Board Setup

To set up the hardware, refer to the section Board Setup in SAMA5D29-Curiosity User Guide.

- Connect the USB Type-C cable from the computer to connector J1 (USB_A port) on the SAMA5D29-Curiosity Development Board.
- Connect a USB-UART converter from the computer to J28 (UART_DEBUG port) on the SAMA5D29-Curiosity Development Board.
- Connect the J32-Debug probe debugger/programmer from the computer to the J27 (JTAG connector) on the SAMA5D29-Curiosity Development Board.
- Insert the SD Card into the SD Card connector (which is on backside of the board) as shown above.
- Establish a connection between the router/switch with the SAMA5D29-Curiosity Development Board through the RJ45 connector.

## Setting up at91bootstrap loader

To load the application binary onto the target device, we need to use at91bootstrap loader.

Refer to the at91bootstrap loader documentation for details on how to configure and run/debug the application using MPLABX and booting application using an SD Card.

## Running the Application

1. Open a terminal application on the host computer (like Hyper-terminal or Tera Term).
2. Configure the terminal application for serial port connected to USB-UART Port.
3. Set baud rate as 115200 in the terminal application.
4. Build and download the application project on the target board.
5. Ensure SD card is formatted and loaded with the web pages provided within the /net_apps_sam_a5d2/apps/web_net_super_set_sdcard_fatfs/firmware/src/web_pages directory.
6. Insert SD Card to the slot on target board.
7. Verify the TCP/IP Stack initialization console messages.

Console Start up

If DHCP client is enabled in the demonstration, wait for the DHCP server to assign an IP address for the development board.

This will be printed on the console. Otherwise, the default static IP address will be assigned to the board.

By entering the command netinfo, the response is obtained as shown above.

Demo Test

- To test the web server functionality, refer Web Net Server demo.
- The command interface is enabled for all the Application Layer modules. These modules can be configured and tested with commands from Console.