0

I have an STM32F4 Discovery board with a firmware that implements a USB CDC device. When connected I should see a virtual COM port device in the Window's Device Manager.

I have installed the STM32 Virtual COM Port Driver by running the VCP_V1.4.0_Setup.exe. My system is a 32 bit, Windows 7.

The problem is when I connect the Discovery board the Windows says:

No driver found.

The device name shows up correctly ("STM32 Virtual COM port") but Windows cannot find any driver either online or locally.

I have installed the driver, so I do not understand what is happening.

2

It turned out that the driver installation was not complete. After running the VCP_V1.4.0_Setup.exe another exe should be executed to finish the installation of the driver.

The correct steps:

1- Uninstall previous versions (Start-> Settings-> Control Panel-> Add or remove programs)

2- Run your "VCP_V1.4.0_Setup.exe"

3- Go to Your installation directory - Example, C:\Program Files (x86)\STMicroelectronics\Software\Virtual comport driver

4- Go to Your OS version directory ([Win7] or [Win8])
+ Then :
- Double click on dpinst_x86.exe if you are running a 32-bits OS version
- Double click on dpinst_amd64.exe if you are running a 64-bits OS version
+ Follow the instructions.

These are included in the readme file, which is only attached if you download the driver from the official site.

  • 1
    Thanks for leaving the note, I have seen some stupid installers in my time but needing to run a separate program installed in a bespoke directory seems like it is being esoteric for the sake of it – PiBorg Jun 13 '17 at 16:17

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.