Hi,
In the NIOS II new book, there is compatibility.
The problem was in the template in Eclipse, when I changed it to Helloworld small, the ELF file is generated.
I got these warnings on the Quartus:
Warning (10036): Verilog HDL or VHDL warning at seven_segment_display.v(18): object "display_data" assigned a value but never read
Info (12128): Elaborating entity "seven_segment_decoder" for hierarchy "seven_segment_decoder:temp_tens_decoder"
Warning (10036):............................
To share the solution with you: I just added the module that declare the system components (NIOS 2+On Chip Memory + FIFO + JTAG) in the top level module declaration with the qip file added to the project.
Here the declaration inside top level,according to my project :
temp_hum u_rdwr (
.clk_clk(clk),
);
Regards.
Yassine