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Visitor II
June 9, 2026
Question

STEVAL-STWINKT1B not showing up as a USB device, possible firmware flashing issues

  • June 9, 2026
  • 0 replies
  • 16 views

I am trying to flash the HSDatalog.bin (from Datalog1) firmware onto the STEVAL_STWINKT1B board using the STLINK_V3MINIE and the STM32 Cube Programmer, following the user manual provided. When I connect to the STLINK on the Cube Programmer, the led flashes red and green. After opening the HSDatalog file and clicking download, the USB light on the STEVAL_STWINKT1B turns off, and the STLINK continues to flash green and red, pausing on green for a second, before continuing to flash. A popup comes up in the Cube Programmer that the file download is complete. I then disconnected the STLINK from my laptop and the development board, leaving just the development board connected. The power LED is on and the USB LED flashes, but it does not come up as a USB device. When I try to open the USB_DataLog_Run file, it says that there is no device detected. 

I am wanting to use direct data transfer via the USB for conditional monitoring, but cannot figure out why it is not showing up as a USB device. I was wondering if because the LED on the STLINK did not turn a solid green means that the firmware did not properly flash onto the board. I have tried several USB cables, 4 different STEVAL_STWINKT1B boards, as well as the Datalog2 files instead of Datalog1. 

 

Serial number: STM32L4R9ZIJ6U

                         STM32F723IEK6