Hi Everyone,
I have some problems with DFU on Windows 10. I use WeAct BlackPill boards based on STM32F411 MCU. This board has BOOT0 button which allow to update firmware using STM32CubeProgrammer and DFU mode.
Recently I got some(not all) boards that acts very weird. Those boards enters DFU mode just fine, detects by STM32CubeProgrammer and able to connect. But as soon I try to erase or program those boards - STM32CubeProgrammer says "Connection lost" and that is it. After that those boards enters into DFU mode, STM32CubeProgrammer able to read serial number, but any attempt to connect failed:
16:51:36 : STM32CubeProgrammer API v2.18.0 | Windows-64Bits
16:51:45 : UR connection mode is defined with the HWrst reset mode
16:51:45 : USB speed : Full Speed (12MBit/s)
16:51:45 : Manuf. ID : STMicroelectronics
16:51:45 : Product ID : STM32 BOOTLOADER
16:51:45 : SN : 337F33963134
16:51:45 : DFU protocol: 1.1
16:51:45 : Board : --
16:51:45 : Device ID : 0x0431
16:51:45 : UPLOADING OPTION BYTES DATA ...
16:51:45 : Bank : 0x00
16:51:45 : Address : 0x1fffc000
16:51:45 : Size : 16 Bytes
16:51:45 : UPLOADING ...
16:51:45 : Size : 1024 Bytes
16:51:45 : Address : 0x8000000
16:51:45 : Read progress:
16:51:45 : Error: Data read failed
16:51:45 : Warning: Connection to device 0x431 is lost
16:51:51 : Warning: Connection to device 0x431 is lost
16:52:00 : Disconnected from device.
16:52:00 : Disconnected from device.
If I use ST-Link to program those boards, I able to connect in DFU mode again... until I try to reprogram it. Then same problem with connection appears again.
I tried two different cables and three different laptops - same result.
But then I decided to try another PC with Windows 11 and it works! It works every single time on two different Windows 11 based laptops with no problems! STM32CubeProgrammer version is the same, so it is not that, it is something else. I wondering what it can be.
I really want this issue to be fixed, because I can't use those boards for my SmartPendant project to control CNC machines based on grblHAL controllers, since it will be impossible to update firmware under Windows 10, and even worse - attempt bricks device until it will be reprogrammed on Windows 11.
