参数资料
型号: L6470PD
厂商: STMICROELECTRONICS
元件分类: 运动控制电子
英文描述: STEPPER MOTOR CONTROLLER, 7 A, PDSO36
封装: ROHS COMPLIANT, SSOP-36
文件页数: 37/61页
文件大小: 703K
代理商: L6470PD
Programming manual
L6470
42/61
Doc ID 16737 Rev 1
9.1.19
STEP_MODE
The STEP_MODE register has the following structure:
STEP_SEL selects one of eight possible stepping modes:
Every time the step mode is changed the electrical position (i.e. the point of microstepping
sinewave that is generated) is reset to the first microstep.
Warning:
Every time STEP_SEL is changed the value in ABS_POS
register looses meaning and should be reset.
Any attempt to write to the register when the motor is running causes the command to be
ignored and the NOTPERF_CMD to rise (see paragraph 9.1.22).
Table 15.
STEP_MODE register
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
00
000
STEP_SEL
Table 16.
Step mode selection
STEP_SEL[2..0]
Step mode
000
Full step
0
1
Half step
0
1
0
1/4 microstep
0
1
1/8 microstep
1
0
1/16 microstep
1
0
1
1/32 microstep (1)
1
0
1/64 microstep (1)
1
1/128 microstep (1)
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