Datasheet

TMC4671 Datasheet • IC Version V1.3 | Document Revision V2.00 • 2020-Apr-17
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0x1B
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MOTOR_TYPE_N_POLE_PAIRS
N_POLE_PAIRS u16(15:0) Number n of pole pairs of the mo-
tor for calcualtion phi_e = phi_m /
N_POLE_PAIRS.
MOTOR_TYPE u8(23:16) 0: No motor
1: Single phase DC
2: Two phase Stepper
3: Three phase BLDC
0x1C
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PHI_E_EXT
PHI_E_EXT s16(15:0) Electrical angle phi_e_ext for exter-
nal writing into this register.
0x1F
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OPENLOOP_MODE
OPENLOOP_PHI_DIRECTION bit(12) Open loop phi direction.
0: positive
1: negative
0x20
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OPENLOOP_ACCELERATION
OPENLOOP_ACCELERATION u32(31:0) Acceleration of open loop phi.
0x21
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OPENLOOP_VELOCITY_TARGET
OPENLOOP_VELOCITY_TARGET s32(31:0) Target velocity of open loop phi.
0x22
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OPENLOOP_VELOCITY_ACTUAL
OPENLOOP_VELOCITY_ACTUAL s32(31:0) Actual velocity of open loop gener-
ator.
0x23
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OPENLOOP_PHI
OPENLOOP_PHI s16(15:0) Angle phi open loop (either
mapped to electrical angel phi_e
or mechanical angle phi_m).
0x24
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UQ_UD_EXT
UD_EXT s16(15:0) External writable parameter for
open loop voltage control mode,
usefull during system setup, U_D
component.
UQ_EXT s16(31:16) External writable parameter for
open loop voltage control mode,
usefull during system setup, U_Q
component.
0x25
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ABN_DECODER_MODE
apol bit(0) Polarity of A pulse.
0: off
1: on
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