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L6480H 数据表(PDF) 23 Page - STMicroelectronics

部件名 L6480H
功能描述  The L6480, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping.
PDF  73 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6480H 数据表(HTML) 23 Page - STMicroelectronics

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L6480
Functional description
Doc ID 023278 Rev 3
23/73
6.7
Motor control commands
The L6480 can accept different types of commands:
●
constant speed commands (Run, GoUntil, ReleaseSW)
●
absolute positioning commands (GoTo, GoTo_DIR, GoHome, GoMark)
●
motion commands (Move)
●
stop commands (SoftStop, HardStop, SoftHiz, HardHiz).
For detailed command descriptions refer to Section 9.2.
6.7.1
Constant speed commands
A constant speed command produces a motion in order to reach and maintain a user-
defined target speed starting from the programmed minimum speed (set in the MIN_SPEED
register) and with the programmed acceleration/deceleration value (set in the ACC and DEC
registers). A new constant speed command can be requested anytime.
Figure 8.
Constant speed command examples
6.7.2
Positioning commands
An absolute positioning command produces a motion in order to reach a user-defined
position that is sent to the device together with the command. The position can be reached
performing the minimum path (minimum physical distance) or forcing a direction (see
Figure 9).
Performed motor motion is compliant to programmed speed profile boundaries
(acceleration, deceleration, minimum and maximum speed).
Note that with some speed profiles or positioning commands, the deceleration phase can
start before the maximum speed is reached.
AM12856v1
SPD1
SPD2
SPD3
SPD4
Run(SPD2,FW)
time
Speed
(step frequency)
Run(SPD3,FW)
Run(SPD1,FW)
Run(SPD4,BW)
Minimum
speed
Minimum
speed



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