CCS/TMS320F28069M: add the ABS encoder to the lab05b implement the low speed control

ming chen3

Intellectual 775 points

Part Number: TMS320F28069M

Tool/software: Code Composer Studio

I design my servo drive board refer to the Launchpad-F28069M and the Dv8305EVM.

and I add a FPGA to implement the ABS encoder logic shift.

the 28069M read the ABS encoder value from the FPGA via the SPI bus.

I do not know how to add the abs value to the lab05b instead of the FAST software encoder .

because I want to control the motor in very slow speed.

Please give me a hand or some similar posts.

Thanks.

over 6 years ago

0 Baskaran Chidambaram over 6 years ago

TI__Genius 17370 points

Hello,
I am writing to let you know that a C2000 team member has been assigned to this post and should be answering shortly.

Regards
Baskaran

0 ming chen3 over 6 years ago in reply to Baskaran Chidambaram

Intellectual 775 points

thanks,do you have any reply?

0 Yanming Luo over 6 years ago in reply to ming chen3

TI__Guru** 109780 points

You can the angle from the encoder for FOC module like Park and I-Park, and you can refer to lab11a, to set the angle and speed from encoder to replace EST_getAngle_pu(estHandle) and EST_getFm_pu(estHandle) in below lines code.

// generate the motor electrical angle
angle_pu = EST_getAngle_pu(estHandle);
speed_pu = EST_getFm_pu(estHandle);

Or refer to lab12b which is InstaSPIN-motion that is sensored-FOC with encoder.

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CCS/TMS320F28069M: add the ABS encoder to the lab05b implement the low speed control