FNET Key Features

The core element of the FNET Project is the TCP/IP stack.

The FNET TCP/IP stack enables to connect an embedded system to a TCP/IP network. This stack is implemented as a stand-alone software library for 32-bit MCUs.
It is modular, portable, and written in the C programming language with some platform-specific optimization in assembler. It is distributed in the form of source code, so the compile-time optimizations and configuration are possible (actually, it is the preferred way to configure stack features).

FNET Top View

The stack provides following protocols and services:

• Supported Platforms:
  • ARM Cortex-M4
    • Kinetis:
      • MK64FN1M (FRDM-K64F board)
      • MK66FN2M (FRDM-K66F board)
      • MK6DN512 (TWR-K60D100M board)
    • i.MX-RT:
      • MIMXRT1052 (IMXRT1050-EVKB board).
      • MIMXRT1062 (MIMXRT1060-EVK board)
    • LPC: LPC54628 (OM13098: LPCXpresso54628 board)
  • Qualcomm/Atheros Wi-Fi 202.11:
    • QCA4002 (GT202-GC3013-FRDM4-KIT board).
    • QCA4004 (SX-ULPAN-2401-SHIELD board).
  • Other platforms (not supported):
    • ColdFire: MCF51CN128, MCF5282, MCF52235, MCF54418, MCF52259
    • PowerPC: MPC5668G, MPC5566, MPC564xBC, MPC5744P, S32R274.
    • Kinetis: MK70FN1M, MK60FN1M.
• Supported Compilers:
  • IAR: Embedded Workbench for ARM, v8.50
  • GCC: Kinetis Design Studio, v3.2
  • ARM: uVisin v5.24
• Bare-metal TCP/IP stack. No underlying RTOS is required, although it can be used with it. FreeRTOS example is provided.
• Certified logos for:
  • Golden IPv6 Ready.
  • Microsoft Azure IoT.
  • Apple Bonjour.
• Non-blocking Socket API (DGRAM, STREAM, RAW).
• Core Protocols:
  • TCP (Transmission Control Protocol).
  • UDP (User Datagram Protocol).
  • IPv4.
    • ICMPv4 (Internet Control Message Protocol).
    • IGMP (Internet Group Management Protocol).
    • ARP (Address Resolution Protocol).
  • IPv6.
    • "IPv6 Ready Logo Certified". Passed IPv6 Core Protocols Conformance and Interoperability tests.
    • ICMPv6 (Internet Control Message Protocol).
    • MLDv1 (Multicast Listener Discovery).
    • Neighbor Discovery for IPv6.
    • IPv6 Stateless Address Autoconfiguration.
    • Path MTU Discovery for IPv6
• Network Interfaces:
  • Ethernet (FEC/ENET module).
  • Wi-Fi (QCA4002/4 module).
  • Loopback.
• Services:
  • HTTP server:
    • HTTP/1.0 or HTTP/0.9 protocols.
    • GET and POST requests.
    • CGI and SSI.
    • Basic access authentication.
    • HTTP over TLS (HTTPS).
  • TELNET server.
  • DHCPv4 client and server.
  • Auto-IP service. Passed "Link-Local Address Allocation", Bonjour Conformance Test.
  • Azure IoT Hub client adapter. Microsoft Azure certified.
  • DNS client/resolver.
  • Link-Detection service.
  • Multicast DNS (mDNS) "Bonjour" Server/Responder. Passed the Bonjour Conformance Test.
  • LLMNR Server/Responder.
  • PING service.
  • SNTP client.
  • TFTP server and client. Both Read and Write requests are supported.
  • TLS using mbedTLS library.
  • ROM File System.
  • On-chip Flash Memory driver.
  • Command line shell.
  • Serial driver.
• Tools:
  • GUI File System Generation Tool.
  • GUI Throughput Benchmark Tool.
• Applications:
  • Shell application.
  • Azure IoT Hub client application.
  • TFTP Bootloader.
  • Shell application, using TLS.
  • Shell application, using Wi-Fi QCA4002/4 interface.
  • TCP/UDP Throughput Benchmark application.
• Source-code based User documentation, by Doxygen.
• RFC list supported by the FNET stack:
  • RFC 768 - UDP.
  • RFC 791 - IPv4.
  • RFC 792 - ICMPv4.
  • RFC 793 - TCP.
  • RFC 826 - ARP.
  • RFC 854 - Telnet server.
  • RFC 951 - BOOTP client.
  • RFC 6762 - Multicast DNS server.
  • RFC 1035 - DNS resolver.
  • RFC 1350 - TFTP client and server.
  • RFC 1945 - HTTP v 1.0 server.
  • RFC 1981 - Path MTU Discovery for IPv6.
  • RFC 2131 - DHCP IPv4 client and server.
  • RFC 2236 - IGMPv2.
  • RFC 2460 - IPv6.
  • RFC 3927 - Dynamic Configuration of IPv4 Link-Local.
  • RFC 4330 - Simple Network Time Protocol (SNTP) Version 4.
  • RFC 4861 - Neighbor Discovery for IPv6.
  • RFC 4862 - IPv6 Stateless Address Autoconfiguration.
  • RFC 4443 - ICMPv6.
  • RFC 4795 - Link-Local Multicast Name Resolution (LLMNR) server.