I have a project (STM32F407) that uses the Thumb Drive firmware update program based on the ST code * @version V1.0.0 * @date   28-October-2011Two questions:1)Is there a newer version we should upgrade to?2)What is the maximum thumb drive size? Small...

Posted on March 05, 2014 at 01:44It's ESD season once again. I have been getting far too many STM32-F407 TQPF IC's being blown up. I believe ESD is the culprit. Failure mode is a bit used as an input is blowing out the internal pullup or that what i...

Posted on February 06, 2014 at 19:13I am trying to understand the NVIC on a SMT32F407. I have found that we are missing USB interrupts randomly. Since I cant solder a pullup to fix the problem I am stuck. I can understand the documentation enough to...

Posted on June 19, 2013 at 18:30Powered up newly designed board today. Of course it seems not to work. :( Its based on Discovery board. I currently have only the STM portion populated. The Oscillator pins are both low. Using a 8 Mhz Xtal and 20 pf c...