I'm using embedded BTStack on a STM32F4XX Discovery Board.

When I discover the device with my PC, I can get to the point of viewing the available services. Most of the time there is NO ENTRY in there, and therefore i cant establish a connection to the virtual SPP com port.

Sometimes it works and i can install the com port, but not work with it. So far I could not see a pattern in the way it works sometimes and sometimes not.

I use a BT USB Dongle as my Bluetooth device on that embedded system, but i assume it must be an issue of the btstack.

Thanks for your help!

Hi. I didn't see an error in SDP for quite some time and I just ported BTstack to a new platform, so I assume it's specific to your port.

You can a) run BTstack on a OS X / Linux system with another USB Dongle for testing, or, b) send a stdout packetlog as described here: https://groups.google.com/forum/#!topic/btstack-dev/1lkU12nxoCo

Please respond on the mailing list / BTstack Google Group