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Lakshmi Lavanya
Lakshmi Lavanya
Associate II
December 19, 2016
Question

Enter DFU mode using Dfuse Tool

  • December 19, 2016
  • 7 replies
  • 2513 views
Posted on December 19, 2016 at 13:35

Hi all,

I am able to jump from my application to DFU Bootloader code and able to update my new firmware image with gpio interrupt, here i need one external interrupt to enter in to DFU for that i am thinking to use the Enter DFU mode button in the Dfuse tool.

So, I enabled the HID class and changed the Product id to DFU id (dfu11), with that i am able to see my Device as a DFU device. Here i want to get the Enter DFU mode/ HID detach command but it is disabled(i.e Greyed out) in the Dfuse tool.

I tried by sending the Report descriptor whatever provided in the document, but no luck.

I am using Stm32l476Z eval board and Dfuse v3.0.5.

Can anybody explain me how to get the Enter DFU mode/ HID Detach command from the Dfuse tool.

#hid_detach #dfu #enter-dfu #hid_dfu
This topic has been closed for replies.

7 replies

Oliver Beirne
Oliver Beirne
Associate II
December 19, 2016
Posted on December 19, 2016 at 18:22

Hi

Gamini.Lakshmi_Lavan

I have moved this thread to the

https://community.st.com/community/stm32-community/stm32-forum?sr=search&ampsearchId=7ff52371-9e2d-4c77-acb3-8f3d271156e1&ampsearchIndex=0

where someone will be able to help you. If you have any product-related questions please post them here going forward.

Thanks

Oli

Lakshmi Lavanya
Lakshmi LavanyaAuthor
Associate II
December 20, 2016
Posted on December 20, 2016 at 06:04

Any suggestions?

Lakshmi Lavanya
Lakshmi LavanyaAuthor
Associate II
December 20, 2016
Posted on December 20, 2016 at 08:14

Hi STOne-32,

Can you please look into this.

SeaFood
SeaFood
Visitor II
December 20, 2016
Posted on December 20, 2016 at 12:07

If I remember well the DFU spec, a device in run mode shall expose a DFU interface.

This means that your device should be a composite ie HID + DFU. Then it will be detected by the DfuSe application and you'll be able to issue a Detach command on the DFU interface

That's the theory :)

Lakshmi Lavanya
Lakshmi LavanyaAuthor
Associate II
December 20, 2016
Posted on December 20, 2016 at 12:57

I saw in some other posts that we can give product id of the DFU to HID class and we can get the Enter DFU button by passing some report descriptors, is it true?

With out DFU class is it possible to get the Enter DFU/HID detach command from the Dfuse tool?

Tesla DeLorean
Tesla DeLorean
Guru
December 20, 2016
Posted on December 20, 2016 at 13:55

My understanding of this is limited, but I seem to recall the VID/PID of a device could be registered with ST, and supported by their tools. I don't recall this being a free service.

I think this is different from the offer to provide a free VID/PID to ST's commercial customers.

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