# Pastebin Ni5Nr1QQ
reg done;

...

done = 1'b0;
for (i = 0; i < NDAQ; i = i + 1) begin
        if (daq_req[i] && !done) begin
                daq <= i;
                daq_grant[i] <= 1;
                ...
                state <= DA_GRANTED;
                done = 1'b1;
        end
end