+ Reply to Thread
Results 1 to 2 of 2

Thread: [SOLVED] Emo_HandleFoc() function timing issue

  1. #1
    Beginner Beginner atozall24 is on a distinguished road
    Join Date
    Apr 2019

    [SOLVED] Emo_HandleFoc() function timing issue


    I have an issue with unwanted time for Emo_HandleFoc() interrupt.
    It is executed at every 100usec.

    If I execute only port toggle in the Emo_HandleFoc function by return statement as below picture then it is executed at every 50usec normally.
    I am using TLE9871QXA20(24Mhz) for motor FOC control (based on TLE9879 software package)

    The TLE9879QXA40(40Mhz) MCU is no problem

    Is there any special reason for delay time at TLE9871(like as MCU performance)?

    Please help this issue.

    Click image for larger version

Name:	code.jpg
Views:	0
Size:	284.4 KB
ID:	3977
    Last edited by atozall24; May 8th, 2019 at 08:44 PM.

  2. #2
    Intermediate Intermediate
    Infineon Employee
    Infineon Employee
    pestadieu is on a distinguished road
    Join Date
    Sep 2018
    Dear atozall24,

    This is indeed due to MCU performance.

    The interrupt trigger happens every 50us. However, when the clock is 24MHz, the time required to do the FOC calculation exceeds 50us and the interrupt trigger is missed.
    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.