Problems with Opencores CAN Controller Reception

Hello,

I am using the CAN Controller Core from Open Cores (http://opencores.org/project,can) on a Cyclon 3. I am not using the wishbone. It's running in Basic mode on the hardware. Transmission works fine but reception is not working properly. The bytes that I recieve are completly different from what I am sending. I have a the guess that is because of the recption fifo but I could not figure out where the problem comes from....

BR Felix