Writing a simple UDP server in Ada for a STM32F746 ARM controller is now easy with the use of the Ada Embedded Network stack. The article describes through a simple UDP echo server the different steps for the implementation of an UDP server.

EtherScope is a monitoring tool that analyzes the Ethernet traffic. It runs on a STM32F746 board, reads the Ethernet packets, do some real-time analysis and displays the results on the 480x272 touch panel.

The Ada Embedded Network is a small IPv4 network stack intended to run on STM32F746 or equivalent devices. This network stack is implemented in Ada 2012 and its architecture has been inspired by the BSD network architecture described in the book "TCP/IP Illustrated, Volume 2, The Implementation" by Gary R. Wright and W. Richard Stevens.

This article discusses the Ethernet Driver design and implementation. The IP protocol layer part will be explained in a next article.