Assertion fail and zephyr fatal error 4

[Hubersch]

Hello everyone,

I'm using a custom bt gatt service. Everything works fine untill i want to use a service that sends data through notification to the adapter side. I get the following messages. And i'm not sure how to follow up on these error messages. Does these errors look familiar?

When i don't  send data through notifications everything works fine and i can use the read/write aspect of the gatt bt protocol.

[Simon]

It seems like the assert __ASSERT(conn, "invalid parameter\n") triggers. Could you try to set a breakpoint on that assert, and follow the conn parameter back the call stack and see why it's zero.

Best regards,

Simon