Binary data dealing with fread

3 visualizaciones (últimos 30 días)
Kei Manabe
Kei Manabe el 19 de Nov. de 2018
Comentada: Jan el 20 de Nov. de 2018
I have a binary data file. When I look into the file in a Hex editior, I can see a 32 bit Hex value, 'F9 BD FF FF.' When I read it as fread(fid,1,'bit32','ieee-le'), the value is read as -3.448212000000000e+05. I do not understand the calculation. Could you let me know, please?

Respuesta aceptada

Jan el 20 de Nov. de 2018
I cannot confirm this.
a = uint8(sscanf('F9BDFFFF', '%2X'));
fid = fopen('test.bin', 'w');
fwrite(fid, a, 'uint8');
fid = fopen('test.bin');
b = fread(fid,1,'bit32','ieee-le') % -16903
Please post some code, which reproduces your observations.
  1 comentario
Jan el 20 de Nov. de 2018
Kei Manabe wrote: I have tried your code and got same result. Finally, I have found the code
"y = y*20.4;"
at around the end of the code lol...
Thank you so much for your cooperation!!

Iniciar sesión para comentar.

Más respuestas (0)


Más información sobre Large Files and Big Data en Help Center y File Exchange.




Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by