converting between Little Endian and Big Endian for signed int, float values ?

Amit_Kumar1 — Wed, 17 Sep 2014 09:27:24 GMT

I am using K60 uc with CW 10.6. Using structure I am storing some values and printing it. The datatypes present in the structure has signed int, unsigned int 32, float.... When I am printing it , the values are appearing to be flipped(as uc is little endian). I tried converting it so that It appears in Big Endian form but it didn't worked well.

Firstly I tried using __builtin_bswap32(); // Present in GCC compiler

It works fine for uint32_t .but It didn't worked for float values.

then I tried using

ntohl(); //Network to Host byte order (Long) htonl(); //Host to Network byte order (Long)

for this I didn't new what header files to include, and so it didn't worked.

then I searched ARM's website and got a document http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0491i/BABBHFJF.html but again this was not for single value. and didn't worked.

Is there any command which does this ??

Kind Regards

Amit Kumar

Re: converting between Little Endian and Big Endian for signed int, float values ?

ZhangJennie — Fri, 19 Sep 2014 04:45:47 GMT

Hello Amit Kumar,

please check if you can find something useful in professor Erich Blog:

A little or big Indian? A Plea for Peace… | MCU on Eclipse

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this answer is for you, if it helps, please click on "correct answer" button. thanks!

Best Regards,

Zhang Jun

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converting between Little Endian and Big Endian for signed int, float values ?

Re: converting between Little Endian and Big Endian for signed int, float values ?