Arduino for STM32

Thanks for your replay. Yes, my Maple Mini board doesn't flash the LED when press reset button. I followed the instructions in the link you provided and DFU and Serial drivers were successful installed. But in the next sentence provided by the link, I think something is wrong: "Re-start the Ard...

I am in the same situation as g0mgx was. Initially I used without problems a SAMD21 M0 clone board. Later, I got a STM32F103RC8T6 Maple Mini clone board, which is not seen at all in Device Manager by the PC. I followed all the steps provided by ag123, but no success. When I use dfu-util batch I get ...