L6470HTR View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L6470HTR' PDF : 73 Pages View PDF
Functional description
L6470
6.7.5
The SoftHiZ command causes the motor to decelerate with programmed deceleration value
until the MIN_SPEED value is reached and then forces the bridges in high impedance state
(no holding torque is present).
The HardHiZ command instantly forces the bridges into high impedance state (no holding
torque is present).
Step-clock mode
In Step-clock mode the motor motion is defined by the step-clock signal applied to the STCK
pin. At each step-clock rising edge, the motor is moved one microstep in the programmed
direction and the absolute position is consequently updated.
When the system is in Step-clock mode, the SCK_MOD flag in the STATUS register is
raised, the SPEED register is set to zero and motor status is considered stopped whatever
the STCK signal frequency (MOT_STATUS parameter in STATUS register equal to “00”).
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DocID16737 Rev 7
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