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What wrong with that counter ?

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Henry Buck 2015-12-9

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关闭： MATLAB Answer Bot 2021-8-20

在 MATLAB Online 中打开

function [wr,count] = wr_blk(rst,clk,sig)
%#codegen
count = 0;
if (rst==0)
    wr=0;
else
    if((sig==1) && (clk==1))
        count = count + 1; 
    else
        count=0;
    end    
end
end

Thanks, Henry

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Torsten 2015-12-9

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You don't set return parameter "wr" in case that rst is not zero.

And - as far as I can see - there is one "end" too much.

Best wishes

Torsten.

Henry Buck 2015-12-9

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OK, One end is for if condition and the other is for the function.

About wr signal - that correct, I need to set it to 1 ifthe counter will increment to 4 (for example). By seting if condition, the counter will increment ?

Thanks, Henry

Torsten 2015-12-9

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The counter will never increment to 4 since you reset it to zero each time you call the function. Thus the maximum value count can be is one.

Best wishes

Torsten.

Henry Buck 2015-12-9

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thanks,

So, how can I count the numbers of clk, while sig is high ?

Henry Buck 2015-12-9

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在 MATLAB Online 中打开

what is wrong with this one :

if (rst==0)

    count=0;
else
    if(sig==1)
        if(clk)
           count = count + 1; 
        end
    else
        count=0;
    end    
end

if (rst==0) wr=0; else if((count==4)) wr=1; else wr=0; end end

Thanks, Henry

Torsten 2015-12-9

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编辑：Torsten 2015-12-9

在 MATLAB Online 中打开

count = sum((sig==1) & (clk==1));

if sig and clk are arrays of the same size.

Best wishes

Torsten.

Henry Buck 2015-12-9

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Thank you Torsten but I need the counter to be increment as long as sig is high - the counter will count the numbers of clk(as long as sig is high, other will zero).

Can I do it in a way as I wrote it above ?

Thanks, Henry