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JGagnon · 2024-09-24

Hello,I am using the NUCLEO-F439ZI and would like to do a firmware updare through the System Bootloader using either UART1 or UART3, jumping to the system bootloader through user code. However, no matter what I do, I can't get the System Bootloader t...

JGagnon · 2024-09-25

I tried my setup with a NUCLEO-G070RB, with the same bootloader code since they have the same system memory address and I was able to connect through the UART with the system bootloader.So I went back to the NUCLEO-F439 and tried again and I was able...

JGagnon · 2024-09-24

It does not work. But I know for a fact that I am in the system bootloader since I am able to use the DFU with the code posted in the original post

JGagnon · 2024-09-24

The USB is not connected when I try to enter into boot loader mode. I also tried completely disabling USB, but I don't think it matters since the system bootloader has its own code.

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NUCLEO-F439ZI System Bootloader error with UART1/UART3 - Can't get a reply.

Re: NUCLEO-F439ZI System Bootloader error with UART1/UART3 - Can't get a reply.

Re: NUCLEO-F439ZI System Bootloader error with UART1/UART3 - Can't get a reply.

Re: NUCLEO-F439ZI System Bootloader error with UART1/UART3 - Can't get a reply.