AnsweredAssumed Answered

Difficulty with STM32L Discovery

Question asked by vaswani.vanush on Jul 23, 2013
Latest reply on Jul 23, 2013 by Clive One

I have purchased STM32L discovery and installed the Atollic TrueStudio development environment on Windows XP.

I successfully loaded the sample application such that the green LED light flashes and the blue LED is constant. Upon pressing the USER button, the situation is reversed.

After I loaded the example firmware, I have been unable to use ST-Link; the COM LED continually flashes RED and Windows does not recognize the device; it says "Unknown device". The standalone STLink application says "No STLink detected".

Is there a way to get this working again?!

Note: Before I was allowed to flash the device, ST-Link required me to upgrade the (debugger's) firmware.