open a hex file
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I use the following code to open a hex file (please look at the attachment).
fid = fopen('FileName');
A = fread(fid);
My problem is instead of getting A as a cell containg n*1 (n is the number of rows in the hex file) I get one row of numbers. I would appreciate it if you help me get a result like below:
00 00 00 00 49 40 40 0D
03 00 30 43 C6 02 00 00
A3 6B 74 23 90 47 E4 40
and so on
1 Comment
Azzi Abdelmalek
on 16 Oct 2013
Can you post the result you've got? maybe with simple use of reshape function you can get the expected result
Accepted Answer
Jan
on 16 Oct 2013
Edited: Jan
on 16 Oct 2013
There is not format you can call "hex file". You can interpret a file as stream of bytes and display them by hex numbers. But from this point of view, any file is a hex file.
Please try this:
fid = fopen('FileName');
A = fread(fid, Inf, 'uint8');
fclose(fid);
Fmt = repmat('%02X ', 1, 16); % Create format string
Fmt(end) = '*'; % Trailing star
S = sprintf(Fmt, A); % One long string
C = regexp(S, '*', 'split'); % Split at stars
Perhaps a string with line breaks is sufficient:
Fmt = repmat('%02X ', 1, 16); % Create format string
Fmt(end:end+1) = '\n';
S = sprintf(Fmt, A);
3 Comments
Jan
on 16 Oct 2013
@Ronaldo: Please specify "large". Some people in the forum use this for 1000 elements, some for 1e15 elements.
When importing the file exhausts too much memory, install more memory, use a 64 bit version of Matlab and OS, free arrays, which are not used anymore. You can import the data by fread(fid, Inf, '*uint8') also, which occupies just an 8.th of the memory. But for SPRINTF a modern Matlab version is required then, because older ones did not accept UINT8 as input.
More Answers (1)
Azzi Abdelmalek
on 16 Oct 2013
Edited: Azzi Abdelmalek
on 16 Oct 2013
fid = fopen('file.txt');
A = textscan(fid,'%s %s %s %s %s %s %s %s')
fclose(fid)
A=[A{:}]
arrayfun(@(x) strjoin(A(1,:)),(1:3)','un',0)
8 Comments
Azzi Abdelmalek
on 16 Oct 2013
Edited: Azzi Abdelmalek
on 16 Oct 2013
Decimal numbers? please edit your question and make it as clear as possible
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