TMS320F28069M: Does InstaSPIN use a magnetic stall?

Sh.Sasaki

Guru 13625 points

Part Number: TMS320F28069M

Hi all,

Does InstaSPIN use following a magnetic stall?

If used, please tell me where in the program of lab13b this process is executed.

http://www.ti.com/lit/an/spra588/spra588.pdf

p.14

Best regards,

Sasaki

over 8 years ago

0 Baskaran Chidambaram over 8 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. We will try our best to address your query. But since one of our sites is affected by bad weather, there may be a delay in response.

Regards
Baskaran

0 Yanming Luo over 8 years ago in reply to Baskaran Chidambaram

TI__Guru** 116860 points

As below code in mainISR, instaSPIN-moition uses Rs Recalculation to align the rotor to a initial position with setting Id to a fixed value, and set Iq to zero.

// if we are forcing alignment, using the Rs Recalculation, align the eQEP angle with the rotor angle
if((EST_getState(obj->estHandle) == EST_State_Rs) && (USER_MOTOR_TYPE == MOTOR_Type_Pm))
{
ENC_setZeroOffset(encHandle, (uint32_t)(HAL_getQepPosnMaximum(halHandle) - HAL_getQepPosnCounts(halHandle)));
}

0 Sh.Sasaki over 8 years ago in reply to Yanming Luo

Guru 13625 points

Thank you for your support!

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TMS320F28069M: Does InstaSPIN use a magnetic stall?