st-link is for the discovery boards that have a programmer on-board, not for the HY-STM32... The python script is very reliable usually - are you sure you've got it plugged in the right USB connector and have reset into bootloader mode properly?
I really don't know what to suggest. This is why we have the Espruino board. All the boards are the same, they're tested, and I can develop software that works reliably with them.
© Espruino, powered by microcosm.
Report a problem