VivadoSystemGeneratorUG948

function matched = state_machine（din）

persistent state state = xl_state（0{xlUnsigned 3 0}）;

switch state
    case 0
        if din == 1
            state = 1;
        else
            state = 0;
        end
        matched = 0;
    case 1
        if din == 0
            state = 2;
        else
            state = 0;
        end
        matched = 0;
    case 2
        if din == 1
            state = 3;
        else
            state = 0;
        end
        matched = 0;
    case 3
        if din == 1
            state = 4;
        else
            state = 2; 
        end
        matched = 0;
    case 4
        if din == 0;
            state = 0;
        else
            state = 1;
        end
        matched = 1;
    otherwise
        state = 0;
        matched = 0;
end

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件     5372275  2014-11-23 21:18  ug948-vivado-sysgen-tutorial.pdf
     目录           0  2013-03-24 03:18  lab1
     目录           0  2014-05-19 03:07  lab10
     文件       20833  2013-11-07 02:54  lab10
gb2gray.slx
     目录           0  2014-05-19 03:07  lab11
     目录           0  2014-05-19 03:07  lab11example1
     文件       26383  2014-04-03 11:32  lab11example1lack_box_ex1.slx
     文件        1330  2013-11-09 14:14  lab11example1mac.vhd
     文件        2334  2013-11-09 14:14  lab11example1 ranspose_fir.vhd
     目录           0  2014-05-19 03:07  lab2
     文件       14212  2014-04-03 02:52  lab2lab2.slx
     目录           0  2014-05-19 03:24  lab2solution
     目录           0  2014-05-19 03:19  lab2solutionpart2
     文件       21076  2014-04-03 02:57  lab2solutionpart2lab2_part2_solution.slx
     目录           0  2014-05-19 03:20  lab2solutionpart4
     文件       26107  2014-04-03 02:49  lab2solutionpart4lab2_part4_solution1.slx
     文件       35105  2014-04-03 03:03  lab2solutionpart4lab2_part4_solution2.slx
     目录           0  2014-05-19 03:07  lab3
     目录           0  2014-05-19 03:07  lab3solution
     文件       21280  2013-03-24 10:40  lab3solutionlab3_padding_solution.slx
     文件       20067  2013-03-24 10:41  lab3solutionlab3_unpadding_solution.slx
     目录           0  2014-05-19 03:07  lab4
     文件       15800  2013-03-24 12:22  lab4lab4.slx
     目录           0  2014-05-19 03:07  lab4solution
     文件       19307  2013-03-24 12:19  lab4solutionlab4_solution.slx
     文件         832  2013-02-17 04:43  lab4solutionstate_machine.m
     目录           0  2014-05-19 03:07  lab5
     目录           0  2014-05-19 03:07  lab5solution
     文件       23189  2014-05-06 07:00  lab5solutionlab5_downsample_solution.slx
     文件       26121  2014-05-06 07:15  lab5solutionlab5_parallel2serial_solution.slx
     文件       25966  2014-05-06 07:05  lab5solutionlab5_serial2parallel_solution.slx
............此处省略53个文件信息