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Acc24E3 Step and Direction options


tweekzilla
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Hi All,

 

I have two version of the Acc24E3:

 

1) Sinusoidal Feedback with 16-bit ADC Digital PWM

2) Sinusoidal Feedback with 16-bit ADCs Two Phase 16-bit DAC

 

Is it possible to do step and direction on an Acc24E3 using either of the above options or do I need a Digital Feedback Mezzanine Board?

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In your first configuration, you can bring out pulse and direction either on the "Phase D" pins of the PWM amplifier connector, or on the T/U/V/W pins of the feedback board. To do the second, you must set Acc24E3.Chan[j].OutFlagD to 1 to enable the output buffers. (Note that this flag value is not saved, so you must set it after every power-on/reset.

 

In the second configuration, you can also bring these signals out on the T/U/V/W pins of the feedback board by setting OutFlagD to 1.

 

In all of these cases, the value in Acc24E3.Chan[j].Pfm determines the frequency and direction of the output. Bit 3 (value 8) of Acc24E3.Chan[j].OutputMode must be set to 1 to select PFM, not PWM, for this register.

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