Problem when reading speed of motor using eQEP.

dang minh

Other Parts Discussed in Thread: CONTROLSUITE

Hi.

I used an example from controlsuite , eqep_pos_speed to read motor speed, my MCU is F28335.

My encoder resolution is 1000, the maximum motor speed is 2800 rpm.

I import the example, debug and run it, everything is ok, but when I open the expression window to watch motor speed (via speedrpm_fr or speedrpm_pr) , they are all zero.

I also tried to press refresh button but nothing happened.

Please give me advice how to fix this problem.

Thank you.

Minh.

over 11 years ago

0 Gautam Iyer over 11 years ago

Guru 192875 points

Hi Minh,

I hope you've read the Description part @ the start of the code. Also, do check this out for documentation:

http://processors.wiki.ti.com/index.php/C2000_Archived_Workshops#C2000_Delfino_Multi-Day_Workshop_-_Revision_8.1_November_2010_.28ExpKit_F28335.3B_CCSv4.2.3B_DSP.2FBIOS_5.41.29

Regards,

Gautam

0 dang minh over 11 years ago in reply to Gautam Iyer

Prodigy 20 points

Hi Gautam.

thanks for your advice.

my problem was fixed by re-config IO of EQEP module in control suite example.

bye.

0 Gautam Iyer over 11 years ago in reply to dang minh

Guru 192875 points

That's Great!

Goodluck & Regards,

Gautam

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Problem when reading speed of motor using eQEP.