STMicroelectronics AN3226 STM32F107 IAP over Ethernet Application Note

This application note provides implementation solutions for In-Application Programming (IAP) using the STM32F107 Ethernet communications interface. Two possible solutions are provided on top of the LwIP TCP/IP stack: IAP using TFTP (Trivial File Transfer Protocol) or IAP using HTTP (Hypertext Transfer Protocol).

Brand: STMicroelectronics
Category: microcontrollers
Document type: Application Note
Language: English
Pages: 18
File format: PDF
File size: 383 KB
Published: 07 August, 2012
Updated: 30 September, 2023
Model: STM32F107
MD5 checksum: 33CD0A5F69084D52B9D6388F49823CF4
PDF: STMicroelectronics AN3226 STM32F107 IAP over Ethernet Application Note PDF

About this manual

This document provides implementation solutions for In-Application Programming (IAP) on the STM32F107 microcontroller using its Ethernet communication interface. It details two specific methods for upgrading firmware in the field: using the Trivial File Transfer Protocol (TFTP) and using the Hypertext Transfer Protocol (HTTP). Both solutions operate on top of the LwIP TCP/IP stack.

What's inside

IAP overview
Theory of operation
IAP using TFTP
IAP using HTTP
TFTP overview
Implementing IAP using TFTP
Using the software
HTTP file upload overview
Implementing IAP using HTTP
Environment settings

Specifications

Supported Microcontroller	STM32F107
Communication Interface	Ethernet
TCP/IP Stack	LwIP v1.3.1
TFTP Data Block Size	512 bytes

Frequently asked questions

How is the TFTP server implemented?

The implementation consists of a basic TFTP server on top of the LwIP stack that responds to file WRITE requests from a remote client.

What is the fixed data block size for the TFTP implementation?

The data block size is fixed to 512 bytes.

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