Teensy 4.1 Firmware update through Ethernet

[Shuptuu]

Hi,
I'm looking at this powerfull Teensy 4.1 for a project where I would use its ethernet port. As the board won't be physically very accessible, would be great to be able to load a new firmware through the network (as you can do with an esp32 through the wifi or an ethernet shield). Is it possible?
If not, is there any plan for such feature?

 

[brtaylor]

Do a search for Over the Air updates for options, this gets brought up often.

Other option is if you can have a second Teensy, BeagleBone Black, Raspberry Pi, etc, then you can upload software using USB from that second device.

 

[Shuptuu]

Thanks brtaylor,
I did, but it's always going through an other device which is not what I'd like to do.
But I maybe found a lead using Joe Pasquariello's 'FlasherX' (here, starting from post #85), replacing the stream from an uart by a stream from tcpip. Should works!
I'll try when I will receive my teensy board.

 

[edemers]

Have you been able to achieve this?
Being able to flash by pulling the binary from a website would be awesome.

 

[AndyA]

This thread https://forum.pjrc.com/threads/72233-OTA-through-Ethernet-with-Teensy-4-1
gives example code to create a web server on the teensy that contains a firmware update form.
Gives a very user friendly if not particularly secure way to handle updates.