STM32L471 DFU

[Giuliano Scaglioni]

Posted on July 12, 2017 at 07:55

I'm confused about wether STM32L471RG has a USB bootloader or not. AN2606 describes an STM32L47xxx DFU bootloader and that USB DM and USB DP lines should be connected to PA11 and PA12 respectively.

But what confuses me is that no USB FS DM/DP line is described on PA11/12 nor USB capabilities in 

STM32L471RG 

datasheet.

#stm32l4-usb #usb-bootloader #dfu #stm32l471 #dfu-bootloader

[Nesrine M_O]

Posted on July 12, 2017 at 11:48

Hi

gscaglioni

,

I will check this problem with our team & come back to you.Sorry for the inconvenience it may bring

-Nesrine-

[Nesrine M_O]

Posted on July 12, 2017 at 15:12

Hi

gscaglioni

,

The STM32L471xx device part numbers are not embedding the USB

, so DFU isn't supported.

The AN2606 application note is generic, with no mention of any details about part numbers.

So user has first to check related product datasheet then check AN26

-Nesrine-

[Giuliano Scaglioni]

Posted on July 12, 2017 at 16:45

Thanks for your help!