how to use speed_pos_fdbk.c to get current speed of motor ( development board EVALKIT-ROBOT-1)

[CYu-X.1]

Hello everyone， How to get current speed of motor，useing  speed_pos_fdbk.c  ，i try to use the functions in fig2 SPD_GetElSpeedDpp but I don't Know how to get the control Period ，It is written in the comments to use the SPD_CalcElectricalAngle ，but i can't find it 。or is there another way to get current speed of motor。

Thank you very much

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​ (fig1)​ motor Specification

(fig2)​

[FouadB]

We would like to sincerely apologize for the delay in replying to your post.
If your point is still relevant, all of the APIs are defined in the mc_api.[c,h] file.
To obtain the current average speed of the motor, use the following API: MC_GetMecSpeedAverageMotor1().
This API returns the most recent calculated average mechanical rotor speed, expressed in the unit specified by #SPEED_UNIT.
For instance, if RPM is the chosen unit, SPEED_UNIT should be defined as 60.

[MMoha.10]

Hi @FouadB ,

When I use MC_GetMecSpeedReferenceMotor1(), I get the values up until 65, and then rolls over to 0 and starts fresh (even though the RPM is going north of 3500). 

How, can I convert MC_GetMecSpeedReferenceMotor1() into RPM values.

[FouadB]

Hi MMoha.10,

If you want to retrieve your reference speed directly in RPM units without any conversion, you can use the following API: MC_GetMecSpeedReferenceMotor1_F().
For the average mechanical rotor speed in RPM units, you can also use the following API: MC_GetAverageMecSpeedMotor1_F().

I hope this answers your question.
Regards