Binary data dealing with fread
4 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
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?
0 commentaires
Réponse acceptée
Jan
le 20 Nov 2018
I cannot confirm this.
a = uint8(sscanf('F9BDFFFF', '%2X'));
fid = fopen('test.bin', 'w');
fwrite(fid, a, 'uint8');
fclose(fid);
fid = fopen('test.bin');
b = fread(fid,1,'bit32','ieee-le') % -16903
Please post some code, which reproduces your observations.
1 commentaire
Jan
le 20 Nov 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!!
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Large Files and Big Data dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!