2010-08-01 08:44 AM
STM32F103 USB VCP Demo Code Problems
#stm322011-05-17 05:00 AM
Thank you paul, that clears up that mystery for me.
It turns out there was a faulty solder connection on my evaluation kit! Always the last thing you suspect I guess. A little time on the scope revealed that DP wasn't actually doing what it was supposed to, so I touched it off with my iron, and now the thing responds! It doesn't enumerate, but it responds. The code appears to boot and run OK, but I'm getting enumeration errors (device not accepting address) on the host. These bugs I can probably deal with. (Though if anyone has thoughts...) I'm told that the IAR code works out of the box on this board, but the ST examples don't. I wonder what could be different. Thanks for the help everyone!2014-01-30 01:29 PM
In my case it was a timing problem. Since I was debugging response seemed to take to long. As soon as I removed all breakpoints in the initialization routines it worked.