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Is bandwidth in IQ20 or IQ24?

RichB
Intellectual 585 points

Other Parts Discussed in Thread: MOTORWARE

Hi all


What is the IQ of bandwidth?

IQ24?

STPOSCTL_setBandwidth_radps(obj->posCtlHandle, _IQ24(USER_SYSTEM_BANDWIDTH)); in spintac_position.h

static inline void STPOSCTL_setBandwidth_radps(ST_POSCTL_Handle handle, _iq20 bw) in spintac_pos_ctl.h

I had to mod the first line to say _IQ20 so that the value in user.h appears as the same value in the debugger when you use IQ20 on the bw variable.

Cheers

Rich

  • 0
    Guru 12800 points

    Rich,

    Bandwidth should always be an IQ20 variable in MotorWare 14.  In previous MotorWares it was bandwidth scale which was an IQ24 variable.  

    Looks like there was a typo in that line in spintac_position.h.  I'll update it and send it in to be corrected in a future MotorWare.