Bootloader for Portenta C33

Official Hardware Portenta Family Portenta C33
1

Hi,

I tried to set up the Portenta C33 Board with a Segger Jlink for debugging. I got it running now, unfortunately I deleted the DFU Bootloader that was preprogrammed. Can you point me in the right direction (or even better provide a binary) where to get this bootloader from?

I would be grateful for any hints!
Johannes

2

in bootloaders folder of the boards package

3

Hi @ddfg ,

You can take a look here:

Best,

4

@Hm_pro, they just need the hex and the instructions, not the source code

5

Hi,

Thanks a lot for the very helpful answers!
You really set me on the right track!

6

Thanks @Hm_pro for the link, the hex file from Juraj helped me to to get the Bootloader running on the board, your link nevertheless is ver interesting!

7

I can find dfu.hex in the PORTENTA_H33.
Does this mean the IDE will automatically use the dfu.hex bootloader when the Arduino Portenta C33 board is selected, and then under Tools, Burn Bootloader is selected from the drop down.

8

no. there is no "bootloader" entry in boards.txt so the IDE doesn't know ho to do it.

Error while burning bootloader: missing 'bootloader.tool' configuration parameter