2015-12-07 11:39 PM
Hi, I've been seeing COM2:STMicro... port on my PC but after I removed some drivers and installed some, it disappeared. Still I can connect to the target using ST-LINK/V2-1 utility and I can debug the code using uVision5.
What software should I install more? Any help deeply appreciated.(By the way, I learned that I can update the firmware of the board using ST-LINK utility and did that hoping this could make the UART print work with uVision program installed.. But now I cannot connect to the COM port using tera-term...)ADD : I can find the COM port but printf is not working. Before I remove a driver (winusb from STmicro), the UART test program worked. I cannot reproduce it.2015-12-09 06:05 AM
Hi Chan,
In the STM32 STLink Properties, click on the device name, in properties click on ''Driver'' and ''Update Driver''. So, the Virtual COM Port will be re-installed. If you can not visualize it in the properties window, disconnect the board and reconnect it to the PC.-Shahrzad-2015-12-10 06:11 PM
2015-12-10 08:29 PM
I wasn't able to reproduce the failure by installing the various ST drivers. Not sure what Keil is installing but probably some mis-match of DLL and drivers.
These can be the occasional battles you have with Windows, and the myriad of different components that can be installed on systems in the field. I think I have sufficiently demonstrated the hardware works, and what combinations of drivers/firmware also work.