Need help to read and write On-Chip Memory Mapped FIFO

Thanks for the replay..

Now I have bypassed the encoder and FIFO_0 directly connected to FIFO_1. I can write the data into FIFO_0 and read the data from the FIFO_1 successfully. Only Encoder is the problem.

settings:

FIFO_0 :

input => AVALONMM WRITE

output => AVALONST SOURCE

FIFO_1:

input => AVALONST SINK

output => AVALONMM READ

Which are the signals are necessary to read from the FIFO_0 and write to FIFO_1.

Regards,

altera1085