How to use bootloader to update S32K14x MCU Software from USB device

baseerahmadpiracha · ‎04-14-2023

Hi NXP Team,

I am working on updating the S32K14x MCU Software from USB device. Is there any possible way or example project to understand how to implement it.

Best Reagds,

Baseer

lukaszadrapa · ‎04-17-2023

Hi @baseerahmadpiracha

S32K14x does not have USB module, so an option is to use USB-to-UART interface and then use serial bootloader.

We have this application note discussing serial bootloader. Sample code is included:

https://www.nxp.com/docs/en/application-note/AN12218.pdf

https://www.nxp.com/docs/en/application-note-software/AN12218SW.zip

And regarding USB-to-UART interface, I can recall that FTDI chip FT2232D was used on one of our EVBs.

Regards,

Lukas

baseerahmadpiracha · ‎04-17-2023

Hi @lukaszadrapa

Thank you for your reply. I have successfully updated the SREC file through Java application but I am not able to run the application. I don't know whether the code is jumping to application after update or not.

Please guide me. Thanks

lukaszadrapa · ‎04-18-2023

Which debugger do you use? If you use S32 Design Studio, you can attach to a running target and then you can check the current state:

https://community.nxp.com/t5/S32-Design-Studio/How-attach-to-running-program/m-p/1030375

Regards,

Lukas