Updating a Teensy in the field...

S

sagreen83

Active member
I am building a comercial product that uses a Teensy 4.0. I would like to be able to send firmware updates to customers and have them apply the new firmware. Whats the best way to do this that doesnt require a ton of effort on the customer side?

Thanks,
Scott...
 
Do you have network or SD card support that is user accessible?
If so then upgrading other the network (either an upgrade app or via a web page) or from a file on the SD card is possible. Those are probably the most user friendly options.
It is also possible over a standard serial port without requiring teensy flashing applications.
However all of these require the required support to be built into your firmware. Check the forums for OTA and FlasherX, there is example code for all of this available.
 
If the user has access to the teensy and can plug in a USB cable, the easiest way is
provide user new hexfile + teensy.exe (for PC)
user has to start teensy.exe, locate hexfile with program, press the button on teensy (check exact procedure with PJRC Teensy.exe web site)
thats all
 
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