AMIS-30623 AMI Semiconductor, Inc., AMIS-30623 Datasheet - Page 58
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AMIS-30623
Manufacturer Part Number
AMIS-30623
Description
Lin Microstepping Motordriver
Manufacturer
AMI Semiconductor, Inc.
Datasheet
1.AMIS-30623.pdf
(67 pages)
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AMIS-30623 LIN Microstepping Motordriver
SetMotorParam()
This command is provided to the circuit by the LIN master to set the values for the stepper motor parameters (listed below) in RAM.
Refer to
Important: If a SetMotorParam occurs while a motion is ongoing, it will modify at once the motion parameters (see
Controller). Therefore the application should not change other parameters than Vmax and Vmin while a motion is running, otherwise
correct positioning cannot be guaranteed.
SetMotorParam corresponds to the following LIN writing frame with 0x3C identifier (type #4).
SetOTPparam()
This command is provided to the circuit by the LIN master to program the content D[7:0] of the OTP memory byte OTPA[2:0], and to
zap it.
Important: This command must be sent under a specific Vbb voltage value. See parameter VbbOTP in
mandatory condition to ensure reliable zapping.
SetMotorParam corresponds to a 0x3C LIN writing frames (type #4).
AMI Semiconductor – June 2006, Rev 3.0
www.amis.com
RAM Registers
Byte
0
1
2
3
4
5
6
7
8
Where:
Broad:
Where:
Broad:
Byte
0
1
2
3
4
5
6
7
8
to see the meaning of the parameters sent by the LIN master.
Content
Identifier
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
Content
Identifier
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
requested
as requested
If Broad = ‘0’ all the circuits connected to the LIN bus will set the parameters in their RAMs as
If Broad = ‘0’ all the circuits connected to the LIN bus will set the parameters in their OTP memories
Broad
Bit 7
0
1
1
SecPos[10:8]
Broad
Bit 7
0
1
1
PWMfreq
SetMotorParam Writing Frame
Bit 6
Irun[3:0]
Vmax[3:0]
0
HardStop Writing Frame
Bit 6
0
1
Bit 5
1
1
58
Bit 5
1
1
AccShape
AppCMD = 0x80
Shaft
Bit 4
SecPos[7:0]
AppCMD = 0x80
1
CMD[6:0] = 0x09
Structure
Bit 4
Structure
CMD[6:0] = 0x10
1
1
D[7:0]
0xFF
0xFF
0xFF
AD[6:0]
StepMode[1:0]
AD[6:0]
Bit 3
Bit 3
1
1
1
Bit 2
Bit 2
Ihold[3:0]
Vmin[3:0]
1
Acc[3:0]
1
OTPA[2:0]
Bit 1
Bit 1
0
0
1
DC
Bit 0
PWMJEn
Bit 0
0
0
Parameters. This is a
Data Sheet
Position
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