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pradeepsysargus
pradeepsysargus
Associate II
February 13, 2017
Question

USB FS driver detection with Windows PC.

  • February 13, 2017
  • 3 replies
  • 1100 views
Posted on February 13, 2017 at 11:30

I am trying to make USB FS driver detection by host PC.

I made some changes to the driver as per the youtube link:

https://www.youtube.com/watch?v=Jpul3w10tOU&t=1175s

 

The application is sending 'Hello World' string every second to the Serial port.

The problem is I am not able to detect the USB driver on the host Windows 7 PC.

I installed STM32 Virtual com port driver (my device is stm32f411rct6).

It is showing 'Unknown device' or 'USB device not recognized' 

When I see the properties of the device, it says 'Code 43'.

Please update me about this.

Thanks,

#stm32f411-virtual-com #usb_otg_fs
This topic has been closed for replies.

3 replies

I
Imen.D
ST Technical Moderator
February 13, 2017
Posted on February 13, 2017 at 16:18

Hello

Ch.Pradeep

,

T

ry to increase heap and stack sizes and you can compare your generated code withthe

CDC application provided within STM32CubeF4 firmware package

to deduce what is going wrong in your case.

P

lease keep me informed on yourprogress.

Regards

Imen

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shingadaddy
shingadaddy
Senior
February 13, 2017
Posted on February 13, 2017 at 21:55

I'm going to guess device manager shows 2 devices?

Next guess would be you probably need to finish the last couple of steps of the setup / drive install from the STM directory where the driver installation files were COPIED (but not INSTALLED) .. It's easily confusing.

pradeepsysargus
pradeepsysargusAuthor
Associate II
February 14, 2017
Posted on February 14, 2017 at 05:19

Initially I want to communicate with Windows PC, but my goal is to connect to an Android tablet.

I did not find any stm32 virtual com port in Google Play, Do you have it ?

Imen,

Yes, I increased stack and heap sizes, I am going to try it in nucleo board once.

Shingadaddy,

I double clicked on 64-bit Windows 7 drive file which is my machine configuration. I did that as it was suggested in Readme file.

Thanks,

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