STM32F407G-DISC1 - Issue with DFU mode

Hello,

I am new to STM products. I have a STM32F407G-DISC1 board and would like to demo a flash program update over USB. I am using the STM32CubeProgrammer.

I am using the following to set up the board for DFU: STM32F407G-DISC1/STM32F4DISCOVERY DFU mode · GitHub

Below is a picture of the board with the connections:

When I open the STM32CubeProgrammer it shows DFU not detected.

Any insight as to what I am doing wrong?

Thanks,

Brent

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Guru

Check NRST solder bridge between ST-LINK and F407 is disconnected.

Perhaps also power the North USB connector, you want the 8 MHz MCO clock from the ST-LINK for the F4 USB to function

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ST Technical Moderator

Hello @BAW ,

I hope this help you to solve the issue.

Thank you.

Kaouthar

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.

BAWAuthor

Associate III

Thank you both for the information and suggestions.

Looking in the AN2606 Application note, I needed Pattern 1 to activate the bootloader.

I needed to pull Boot1 to ground. Before I was only jumping Boot0 to VCC.

Thanks again for the help.

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