CODEWITHSUNDEEP
matlabhexfwrite
Kashif Nawaz
Kashif Nawaz

Reputation: 95

Row wise writing to file using fwrite() in Matlab

enter image description herefwrite in Matlab writes in column order. This is a problem for me as I need to write hex values which should be read byte wise and then go to the next row and so on. Is there a way this can be done? Below is my code. 

hexvec = dec2hex(bytevec,2);
fileID = fopen('my_flipped_data_new.bin','wt');
fwrite(fileID, hexvec);
fclose(fileID);

Thanks!

Upvotes: 0

Views: 2305

Answers (2)

Kashif Nawaz
Kashif Nawaz

Reputation: 95

@AsantosRiberio your code is correct; the only problem was with the length(F) which was giving the "index exceeds matrix dimensions" errors. To avoid this, simply use 

[rw co] = size(new_converted);
new_converted=[char(new_converted),repmat(' ',**rw**,1)]';

Thanks all for your help!

Upvotes: 0

ASantosRibeiro
ASantosRibeiro

Reputation: 1257

think I got your point.

CODE:

F=dec2hex(1:63,2);
F=[char(F),repmat(' ',length(F),1)]'
F=F(:)'
fileID = fopen('my_flipped_data_new.bin','wt');
fwrite(fileID, F);
fclose(fileID);

OUTPUT (text file):

01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F

Upvotes: 1

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