How to convert AnsiChar (char8_t) into HEX?
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Hello. I save raw sensor data to an SD card. When I open such a file, for example, in the HxD program, I get a preview of the data in HEX, Int8, UInt8 and other formats. Can I do the same directly in MATLAB (R2015a)? How can I convert AnsiChar (char8_t) data into other data types? For example, I would like to convert the data string "ę˙°ţiţ{ý" into the EA FF B0 FE 69 FE 7B FD form.
1 Comment
John D'Errico
on 23 May 2023
@Radoslaw Puchalski - please don't use flags to make a comment. Flags are there for moderation purposes.
Answers (2)
Walter Roberson
on 22 May 2023
It isn't completely clear what you want
datastring = "ę˙°ţiţ{ý"
fprintf('%02x ', typecast(swapbytes(uint16(char(datastring))),'uint8'))
The above is in "big endian" order, which is not the internal order for any currently supported architecture. Big-endian as in the 01 19 is to be interpreted as 0x01 * 256 + 0x19 rather than as 0x01 + 0x19 * 256
dec2hex(datastring{1},4)
But maybe you want utf-8 bytes?
fprintf('%02x ', unicode2native(datastring, 'utf8'))
4 Comments
Radoslaw Puchalski
on 23 May 2023
Edited: Radoslaw Puchalski
on 23 May 2023
4 Comments
Walter Roberson
on 23 May 2023
You can improve slightly:
filename = 'E:\file.csv';
fileID = fopen(filename,'r');
Data_int16 = fread(fileID, '*int16');
fclose(fileID);
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