Posted on July 06, 2017 at 20:51Actually, I am able to measure 1.25V on the external caps. We had 3 non-functional units and all three exhibited the same symptoms. We sent 2 of those units over to ST for the failure analysis. Both had the same res...
Posted on July 03, 2017 at 14:46My company has received the Failure Analysis Report from STMicro. We sent them two disabled units. Based on their findings, both units have their VCAP1 and VCAP2 lines internally short circuited to VSS (ground). Th...
Posted on June 08, 2017 at 21:03Which revision of the chip are you using and what is the date code on it? Ours are Revision 2 with a date code of 634 on two boards and a date code of 635 on the third board.
Posted on June 06, 2017 at 18:34My team is having a very similar problem with the STM32F407 chip. Electrically, the circuit is sound. Have you discovered the root cause of the issue? If so, please post your results. We are continuing to debug, b...
