qsys project and bonding top hardware module with nios

Hi,

UART example design project file sharing here. it helps you to read and write data from the host system(user). please try this design. in this project FPGA side UART is used so you need to add extra hardware (TTL to Voltage USB converters like RS232, and Max232) to communicate with your pc only then can you see the exact data.

you can see FPGA to PC connection block diagram.