L6472H STMicroelectronics, L6472H Datasheet - Page 58

• Manufacturer Part Number: L6472H
• Description: Motor / Motion / Ignition Controllers & Drivers Motor DRV SPI dSPIN 7.0A 3.0 rms 8 - 45V
• Manufacturer: STMicroelectronics
• Type: 2 Phase Stepper Motor Driverr

Specifications of L6472H

• Product Category: Motor / Motion / Ignition Controllers & Drivers
• Rohs: yes
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 8 V to 45 V
• Supply Current: 0.5 mA
• Operating Temperature: - 25 C to + 125 C
• Mounting Style: SMD/SMT
• Package / Case: HTSSOP-28
• Power Dissipation: 5 W

Programming manual
9.2.9
9.2.10
58/68
GoTo_DIR (DIR, ABS_POS)
Table 42.
The GoTo_DIR command produces a motion to the ABS_POS absolute position imposing a
forward (DIR = '1') or a reverse (DIR = '0') rotation. The ABS_POS value is always in
agreement with the selected step mode; the parameter value unit is equal to the selected
step mode (full, half, quarter, etc.).
The GoTo_DIR command keeps the BUSY flag low until the target speed is reached. This
command can only be given when the previous motion command has been completed
(BUSY flag released).
Any attempt to perform a GoTo_DIR command when a previous command is under
execution (BUSY low) causes the command to be ignored and the NOTPERF_CMD flag to
rise (see
GoUntil (ACT, DIR, SPD)
Table 43.
The GoUntil command produces a motion at SPD speed imposing a forward (DIR = '1') or a
reverse (DIR = '0') direction. When an external switch turn-on event occurs (see
Section
copied into the MARK register (if ACT = '1'); the system then performs a SoftStop command.
The SPD value is expressed in step/tick (format unsigned fixed point 0.28) which is the
same format as the SPEED register (see
The SPD value should be lower than MAX_SPEED and greater than MIN_SPEED,
otherwise the target speed is imposed at MAX_SPEED or MIN_SPEED respectively.
If the SW_MODE bit of the CONFIG register is set low, the external switch turn-on event
causes a HardStop interrupt instead of the SoftStop one (see
This command keeps the BUSY flag low until the switch turn-on event occurs and the motor
is stopped. This command can be given anytime and is immediately executed.
Bit 7
Bit 7
0
X
X
1
6.13), the ABS_POS register is reset (if ACT = '0') or the ABS_POS register value is
Section
Bit 6
GoTo_DIR command structure
GoUntil command structure
X
0
Bit 6
X
1
9.1.19).
Bit 5
X
0
Doc ID 022729 Rev 2
Bit 4
ABS_POS (Byte 1)
ABS_POS (Byte 0)
SPD (Byte 1)
SPD (Byte 0)
X
0
Bit 5
1
Bit 3
ACT
Section
ABS_POS (Byte 2)
Bit 4
9.1.4).
Bit 2
0
SPD (Byte 2)
0
Bit 3
1
Bit 1
1
Bit 2
Section 6.13
0
Bit 1
Bit 0
DIR
0
Bit 0
and 9.1.18).
DIR
From host
From host
From host
From host
From host
From host
From host
From host
L6472