Stm32l0 USB connection error CubeMX
Hello,
I try to get the usb vcp running on the nucleo-l053r8 board. I will keep it simple and to it with your software CubeMX in the first step.
I created a project with the help of CubeMX.
I activated the usb pins, selected usb CDC. Activated rc48 for usb clock and Hsi RC 16 with pll and the settings *3 /2 to drive the rest with 24MHz.
After this, I changed the heap size to 1000 and stack size to 400 as described in some article on your homepage.
Now I created a project for Iar. This is running and I get some information about a connection trial. The usb analyzer says:
PnP: device connected
PnP: device surprise removal
PnP: device disconnected
If I try to debug the software, an interrupt is asserted. Reset was send and in this interrupt call also a suspend flag and an esof flag is evaluated.
In my point of view, this fits perfect to the result of the analyser.
Can you help me with this issue please.
I have tried also some other examples but I had always the same issue.
Best regards Andreas M.
