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I have a NUCLEO_L432KC and am wondering how I can put the board into DFU mode?

JBlac
Associate III

‎2019-03-12 07:37 AM

I see in AN2606 in the section for the L4XXX and DFU bootloader the use of PA11 and PA12, but I don't know what I'm supposed to do with these to achieve DFU mode. I have created a port of micropython that has a firmware.dfu file for loading; however, it also has a firmware.bin, firmware.elf. Should I use the .dfu; or should I just use ST-LINK and load the .bin file? What if anything do I gain from using DFU bootloader mode?

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Bob S
Principal

‎2019-03-12 08:20 AM

Look for the BOOT0 pin, then install or uninstall the jumper/solder bridge as needed (check the data sheet and/or reference manual).

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JBlac
Associate III

‎2019-03-12 12:40 PM

Not too keen about removing solder bridges. There is no removable jumper. So, I guess I'll just use st-link to load the .bin and leave the solder bridge as is.

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