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MAlek
Associate III
April 4, 2019
Question

minimum circuit to have STM32F407VGT6 with USB working properly as a USB host

  • April 4, 2019
  • 2 replies
  • 970 views

Hi guys,

does anyone draw a circuit to get the stm32F4 MCU with USB connector working properly .

Thanks

This topic has been closed for replies.

2 replies

Vangelis Fortounas
Associate II
April 5, 2019

Inside reference manual there is a minimum "schematic" for OTG USB FS in Host mode.

F4 series has an internal FS PHY.

I tried it and it works properly.

Although EMI filters and ESD protection, both are recommended.

Most cheap Chinese F407VG boards use this minimal configuration.

0690X0000089wSmQAI.jpg

MAlek
MAlekAuthor
Associate III
April 5, 2019

Hi Vangelis,

thank you !

But, i am not understanding why my code is not working ...

I am using this board :

https://www.amazon.com/Diymore-STM32F407VGT6-Cortex-M4-Discovery-Development/dp/B01M7YB5HF

its schematics: 

http://dubstylee.net/v/wp-content/uploads/2017/08/DIY-More-STM32F407VGT6.png

I am beeing able to flash the code using stlink and usb (dfu), but when i connect the board to the pc it does not show the HID device.

What could be causing the problem ?