Posted on May 17, 2011 at 13:56Hi Clive, Thanks for your advice. I have found the problem finally. Yes, the problem is at the RS232-TTL level converter. When I use my cable, there are 2 MAX232 used: (USB => UART => MAX232) => MAX232 => STM32. But wh...

Posted on May 17, 2011 at 13:56Hi everybody, I'm using STM32F103RC on a breakout board I made. I tried to flash it with Flash Loader Demonstrator, using UART1 and USB-RS232 cables, but I couldn't connect it, the message is always: ''Unrecognized dev...