L9935 查看數據表（PDF） - STMicroelectronics
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L9935 Datasheet PDF : 29 Pages
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Functional description
L9935
5.15
Cascading several devices
Cascading several devices can be done using the SDO output to pass data to the next
device. The whole frame now consists of n byte. n is the number of devices used.
Figure 10. Cascading several stepper motor drivers
3$/
NO
3$)
3$/
NO
3$)
3$/
NO
3$)
3$/
M0
#3. 3#+
3#+ #3.
3#+ #3.
3#+ #3.
'!0'03
Figure 11. Control sequence for 3 Stepper motor drivers
%.
#3.
3#+
3$/
OF M0
BYTE FOR NO
BYTE FOR NO
BYTE FOR NO
188
'!0'03
Figure 12. Paralleling several devices
3$)
3$/
M0 3#+
#3.
#3.
NO
3$)
3#+
#3.
3$/
NO
3$)
3#+
#3.
3$/
'!0'03
Here usually only one stepper motor driver is selected at a time while all others are
deselected.
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Doc ID 5198 Rev 10
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