timmek

@Paul I was not conscious that 'core.a' is open source. That's geat. Off course I am going to go through it. Thank you.

Ok, thank you. So what features are included in 'core.a'? Could you briefly decribe it?

All of the code that handles receiving and flashing new programs on the device is inside the bootloader (the MKL02 chip). It is not public. The code that transfers control to the bootloader is here...

No, it is not. (except for the code that transfer control, as already mentioned in msg #4)

But MCU (IMXRT1062) have to detect usb connection and handle bootloading somehow. I am conscious that this part of code is proprietary but I only want to know if this code is a part of 'core.a'? Moreover, is there any brief description available...

@KurtE Hi, Thank you for the reply. I am talking about the code on the MCU side. You have wrote that this part of code is not public. Ok, but where the proprietary part of code is stored? Is it a part of archive file 'core.a'? If yes, is there...

Sorry unclear, are you talking about the code on the PC side? If so the Teensy app that comes with Teensyduino installs (or board installs with IDE 2.x) has the app. If you are looking for the source code for that app, it is not public...

Hello, I would like to ask where can I find the code responsible for communication with bootloader and handling USB communication during code uploading?