I need flow chart for this wihle loop function on Matlab. I\'m tryhing to undert

Question

I need flow chart for this wihle loop function on Matlab.

I'm tryhing to undertand the function.

here is the code

while (~ feof(fid))
if (sink == [82])
fseek(fid,-1,'cof');
ck=fread(fid,16,'uint8');
fseek(fid,-15,'cof');
sid = fread(fid,1,'uint8');
fseek(fid,-1,'cof');
ctr = fread(fid,1,'uint32');
dat16 = fread(fid,num16,'uint16');
dat8 = fread(fid,num8,'uint8');
cksum = fread(fid,1,'uint8');
fseek(fid,1,'cof');
sink2 = fread(fid,1,'uint8');
if length(sink2) == 1
if (sink2 == [82])
if (mod(sum(ck),256) == cksum)
sinvec =[sid ; ctr ; dat16 ; dat8; cksum ; sum(ck)];
ct1 = ct1 + 1;
A(:,ct1)=sinvec;
sink=sink2;
else
sink = sink2;
fail_checksum = fail_checksum + 1
end
else
fseek(fid,-(num8+num16*2+num32*4+1),'cof');
sink = fread(fid,3,'uint8');
ct=ct+1;
end
end
else
sink = [fread(fid,1,'uint8')];
ct2=ct2+1;
end
end

Explanation / Answer

while (~ feof(fid))
if (sink == [82])
fseek(fid,-1,'cof');
ck=fread(fid,16,'uint8');
fseek(fid,-15,'cof');
sid = fread(fid,1,'uint8');
fseek(fid,-1,'cof');
ctr = fread(fid,1,'uint32');
dat16 = fread(fid,num16,'uint16');
dat8 = fread(fid,num8,'uint8');
cksum = fread(fid,1,'uint8');
fseek(fid,1,'cof');
sink2 = fread(fid,1,'uint8');
if length(sink2) == 1
if (sink2 == [82])
if (mod(sum(ck),256) == cksum)
sinvec =[sid ; ctr ; dat16 ; dat8; cksum ; sum(ck)];
ct1 = ct1 + 1;
A(:,ct1)=sinvec;
sink=sink2;
else
sink = sink2;
fail_checksum = fail_checksum + 1
end
else
fseek(fid,-(num8+num16*2+num32*4+1),'cof');
sink = fread(fid,3,'uint8');
ct=ct+1;
end
end
else
sink = [fread(fid,1,'uint8')];
ct2=ct2+1;
end
end

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