The FNET is a free, open source software project (under dual GNU LGPL/GPLv3 license with the linking exception) for building embedded communication software using the Freescale processors.

The FNETv1.2.2 stack provides following protocols and services:

• Supported platforms:
  • ARM Cortex-M4:
  • Kinetis - MK60N512 (TWR-K60N512).
  • ColdFire:
  • Reindeer - MCF5282 (M5282EVB).
  • Kirin2 - MCF52235 (M52235EVB).
  • Kirin3 - MCF52259 (M52259EVB, M52259DEMO, TWR-MCF52259).
  • Lasko - MCF51CN128 (TWR-MCF51CN).
• Supported Compilers:
• Freescale:
• CodeWarrior Development Studio for Microcontrollers Version 10.2 (MK60N512, MCF52259).
• CodeWarrior for ColdFire Version 7.2.2 (MCF5282, MCF52235, MCF52259).
• CodeWarrior for Microcontrollers Version 6.3 (MCF51CN128).
• IAR:
• Embedded Workbench for ARM Version 6.2 (MK60N512).
• Embedded Workbench for ColdFire Version 1.22 (MCF52259).
• Bare-metal TCP/IP stack. No underlying RTOS is required, although it can be used with it.
• BSD-like, non-blocking Socket layer API
• Core Protocols:
  • TCP (Transmission Control Protocol).
  • UDP (User Datagram Protocol).
  • IPv4 (Internet Protocol).
  • ICMP (Internet Control Message Protocol).
  • IGMP (Internet Group Management Protocol).
  • ARP (Address Resolution Protocol).
• Network Interfaces:
  • Ethernet interface.
  • Loopback interface.
• Services:
  • HTTP server:
    • HTTP/1.0 or HTTP/0.9 responses.
    • GET and POST requests.
    • CGI and SSI.
    • Basic access authentication.
  • TELNET server.
  • DNS client/resolver.
  • DHCP client.
  • TFTP server and client. Both Read and Write requests are supported.
  • Static File System.
  • On-chip Flash driver.
  • Command line shell.
• Tools:
  • GUI File System Generation Tool.
  • GUI Throughput Benchmark Tool.
• Applications:
  • TFTP Bootloader.
  • Shell Application.
  • FBENCH Throughput Benchmark Application.
• User Documentation.