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L6480 Arkusz danych(PDF) 50 Page - STMicroelectronics

Numer części L6480
Szczegółowy opis  The L6480, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping.
PDF  73 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6480 Arkusz danych(HTML) 50 Page - STMicroelectronics

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Programming manual
L6480
50/73
Doc ID 023278 Rev 3
The STEP_SEL parameter 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 the ABS_POS
register loses meaning and should be reset.
Any attempt to write the register when the motor is running causes the command to be
ignored and the NOTPERF_CMD flag to rise (Section 9.1.24).
When when SYNC_EN bit is set low, BUSY/SYNC output is forced low during command
execution, otherwise, when the SYNC_EN bit is set high, BUSY/SYNC output provides a
clock signal according to the SYNC_SEL parameter.
The synchronization signal is obtained starting from electrical position information (EL_POS
register) according to Table 22:
Table 21.
Step mode selection
STEP_SEL[2..0]
Step mode
0
0
0
Full-step
0
0
1
Half-step
0
1
0
1/4 microstep
0
1
1
1/8 microstep
1
0
0
1/16 microstep
1
0
1
1/32 microstep
1
1
0
1/64 microstep
1
1
1
1/128 microstep
Table 22.
SYNC signal source
SYNC_SEL[2..0]
Source
0
0
0
EL_POS[7]
0
0
1
EL_POS[6]
0
1
0
EL_POS[5]
0
1
1
EL_POS[4]
1
0
0
EL_POS[3]
1
0
1
EL_POS[2]
1
1
0
EL_POS[1]
1
1
1
EL_POS[0]



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