infineon4engineers Facebook

infineon@google+ Google+

infineon@linkedin linkedin

infineon4engi@twitter twitter

infineon@youtube youtube

+ Reply to Thread
Results 1 to 2 of 2

Thread: big endian / little endian

  1. #1
    Beginner Beginner StHar is on a distinguished road
    Join Date
    Apr 2019

    big endian / little endian


    I want to define a union with 32 Bit.

    uint8_t x [4];
    uint32_t y;

    In one case I work with "uint32_t y" and in the other with "uint8_t x [4]".

    My problem is that uint32_t is little endian but I need big endian. How can I change it?

    I use Dave 4 and a XMC 4700 Controller.

    Thanks for your help


  2. #2

    Infineon Employee
    Infineon Employee
    jferreira will become famous soon enough
    Join Date
    Oct 2012

    XMC4 is implemented as little endian processor. Therefore any uint32_t variable would be stored in memory in little endian format.
    You can use the __REV() intrinsic to store a number in a uint32_t in big endian format.

    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

+ Reply to Thread

All content and materials on this site are provided “as is“. Infineon makes no warranties or representations with regard to this content and these materials of any kind, whether express or implied, including without limitation, warranties or representations of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, whether express or implied, is granted by Infineon. Use of the information on this site may require a license from a third party, or a license from Infineon.

Infineon accepts no liability for the content and materials on this site being accurate, complete or up- to-date or for the contents of external links. Infineon distances itself expressly from the contents of the linked pages, over the structure of which Infineon has no control.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Usage Terms of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Usage Terms of this site. Infineon reserves the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.