Need help about flash programmer

I solved this problem.

Originaly, in the mk_target_board design, I changed the asmi component into the epcs_controller,

'cause in NiosII the epcs_controller supersede the asmi component. Maybe I did not change the

base address of epcs_controller to the asmi's, or something else. Then I kept the asmi component

and did not use the epcs_controller.

When I fixed this bug, new problem emerged. The flash programmer told me that it cannot synchonize with the target device.

In previous posts, someone has mentioned that increasing the clk frequency may solve this problem. Then I upgrade the clk

from 48M to 80M, then it works.

Thank u.