AMIS-30621 Datasheet, PDF (18/43 Pages) AMI SEMICONDUCTOR – LIN Microstepping Motordriver

AMIS-30621 LIN Microstepping Motordriver
Data Sheet
9.2.2.9 RAM Registers
Register
Actual Position
Mnemonic
ActPos
Length (bit)
16
Last Programmed
Position
Pos/
TagPos
16/11
Acceleration Shape AccShape
1
Coil Peak Current
Irun
4
Coil Hold Current
Ihold
4
Minimum Velocity
Vmin
4
Maximum Velocity Vmax
4
Shaft
Acceleration/
Deceleration
Shaft
1
Acc
4
Secure Position
SecPos
11
Stepping Mode
StepMode
2
Related Commands
GetActualPos
GetFullStatus
GotoSecurePos
ResetPosition
GetFullStatus
GotoSecurePos
ResetPosition
SetPositionShort
GetFullStatus
ResetToDefault¹
SetMotorParam
GetFullStatus
ResetToDefault¹
SetMotorParam
GetFullStatus
ResetToDefault¹
SetMotorParam
GetFullStatus
ResetToDefault¹
SetMotorParam
GetFullStatus
ResetToDefault¹
SetMotorParam
GetFullStatus
ResetToDefault¹
SetMotorParam
GetFullStatus
ResetToDefault¹
SetMotorParam
GetFullStatus
ResetToDefault¹
SetMotorPara
GetFullStatus
ResetToDefault¹
SetMotorParam
Comment
- 16-bit signed
- 16-bit signed or
- 11-bit signed for half stepping
(see § 8.5)
‘0’ ➞ normal acceleration from Vmin to Vmax
‘1’ ➞ motion at Vmin without
acceleration
Operating current (see § 9.2.2.13)
Standstill current (see § 9.2.2.13)
See § 8.3 and § 9.2.2.13
(look-up table)
See § 8.2 and § 9.2.2.13
(look-up table)
Direction of movement for
positive velocity
See § 8.4 and § 9.2.2.13
(look-up table)
Target position when LIN
connection fails; 11 MSBs
of 16-bit position (LSBs fixed to ‘0’)
See § 8.1 and § 9.2.2.13
Note
(1) A ResetToDefault command will act as a reset of the
RAM content, except for ActPos and TagPos registers
that are not modified. Therefore, the application should
not send a ResetToDefault during a motion, to avoid
any unwanted change of parameter.
Reset State
Note 1
‘0’’
From OTP
memory
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