STMicroelectronics STM32F407/STM32F417 AN3966 Application Note

About this manual

The note presents a demonstration package built on the LwIP (Lightweight IP) TCP/IP stack for STM32F407/STM32F417 microcontrollers. It includes nine example applications such as web servers, TFTP server, TCP/UDP echo clients and servers, both in standalone mode and with FreeRTOS.

The document describes the LwIP stack features, its three APIs (Raw, Netconn, Socket), the low‑level Ethernet driver, memory configuration options, and provides footprint information for each demo module.

What's inside

• Introduction
• LwIP stack overview
• STM32F4x7 low level driver overview
• Developing applications with LwIP stack
• Description of the demonstration package
• Using the demos
• Footprint information
• Conclusion
• Revision history

Specifications

Frequently asked questions

Which microcontrollers are covered by this application note?

The note applies to the STM32F407 and STM32F417 microcontrollers.

What APIs does the LwIP stack provide?

LwIP offers three APIs: the native Raw API, the high‑level Netconn API, and the BSD Socket API.

What demo applications are included in the package?

The package includes a web server, a TFTP server, TCP and UDP echo client and server applications, both in standalone mode and with FreeRTOS.

What is the purpose of the footprint information section?

It lists the flash and SRAM usage of each demo module and the total memory consumption.