DRV8803 Datasheet, PDF (20/26 Pages) Texas Instruments – QUAD LOW-SIDE DRIVER IC

The Windows Application
3.9 Speed Control
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DRV8803/04
DRV8805
Figure 19. DRV88003/04/05 Speed Control Windows
Speed Control/Start Steps - The speed is set by either using the slide control, or selecting the Steps per
Second value in the Steps Per Second number box. Using either control the other will be updated
automatically. Pressing the “Start Steps” button, will start the timer and the motor will step at the rate
specified by the Steps Per Second number Box/Slider. Once the “Start Steps” button is pressed it
becomes the “Stepping (Pause Steps)” button. Press the “Stepping (Pause Steps)” button to stop the
stepper motion. The Steps Per Second rate is updated automatically anytime the slider of the number box
is used.
Pulse 1 Step – Control only applies to the DRV8805. Clicking this button will step the motor once, and
also toggle the corresponding STEP pin HI (green) then LO (red) or LO (red) then HI (green) (see
DRV88xx GPIO signals). A step takes place when the pin goes from LO (red) to HI (green)
3.10 Acceleration Control
DRV8803/04/05
Figure 20. DRV88003/04/05 Acceleration Control Windows
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SLVU574A – September 2011 – Revised June 2012
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