Creating a safer, greener, more secure future.

TCP/IP Networking Components

Our network solution is a scalable, thread safe TCP/IP stack. We make use of the FreeRTOS stack integrated with an EMAC driver, fully integrated with either OPENRTOS® or SAFERTOS® and your chosen processor, supplied under a commercial license, and supplied as an ‘out of the box’ networking solution. It provides a familiar, standards based, Berkeley sockets interface, making it as simple to use and as quick to learn as possible. An alternative callback interface is also available for advanced users.

The features and RAM footprint are fully scalable, making our solution equally applicable to smaller, lower throughput microcontrollers as larger, higher throughput microprocessors. It is available with a light weight HTTPS web server, please ask one of our sales representatives for more details.


  • Berkeley sockets API
  • Optionally supports TCP sliding windows
  • Fully re-entrant and thread safe API
  • Includes ARP, DHCP, DNS, LLMNR, NBNS
  • Gratuitous ARPs
  • Static, DHCP and Auto-IP address assignment
  • Can also be used as a UDP only stack
  • Optionally callback interface
  • Optionally fragment outgoing packets

Berkeley Sockets API

_send() / _sendto()
_recv() / _recvfrom()

Free Demos & Manuals

Download fully functional, time-limited SAFERTOS® demos, plus manuals, datasheets, and more.

Code Size (example generated with GCC for ARM Cortex-M)

File With -O1 Optimisation With -Os Optimisation
_DHCP.c 1.9K 1.3K
_DNS.c 3.5K 2.0K
_Sockets.c 6.6K 4.9K
_Stream_Buffer.c 0.3K 0.3K
_IP.c 3.5K 2.6K
_ARP.c 8.4K 1.2K
_UDP_IP.c 0.7K 0.5K
_TCP_IP.c 7.0K 4.8K
_TCP_WIN.c 2.2K 1.7K
BufferAllocation_1.c 0.8K 0.8K
Worst case with everything enabled 34.9K 20.1K

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