multiple constant drivers

[Altera_Forum]

i need help, can anyone help me which registers should be removed so that multiple constant driver error would be removed. 

 thanks

[Altera_Forum]

What is the error you are getting exactly? (Quartus normally tells you which line or what signal name has the multiple driver error)

[Altera_Forum]

the error is in the posedge clk for the counter. it says multiple constant driver error for counter, count_done and count_done1.

[Altera_Forum]

You are assigning those registers in two different processes.  

These assignments should be made in a single 'always @' process, otherwise this would mean multiple drivers from the synthesizer's point of view.