L6472PDTR View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
L6472PDTR
STMicroelectronics
'L6472PDTR' PDF : 69 Pages View PDF
L6472
Programming manual
9.1.15
OCD_TH
The OCD_TH register contains the overcurrent threshold value (see Section 6.9 on page 28
for details). The available range is from 375 mA to 6 A, steps of 375 mA, as shown in
Table 18.
Table 18. Overcurrent detection threshold
OCD_TH [3 … 0]
Overcurrent detection threshold
0
0
0
0
375 mA
0
0
0
1
750 mA
1
1
1
0
1
1
1
1
5.625 A
6A
9.1.16
STEP_MODE
The STEP_MODE register has the following structure:
Bit 7
SYNC_EN
Table 19. STEP_MODE register
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SYNC_SEL
1(1)
STEP_SEL
1. When the register is written this bit should be set to 1.
When the STEP_MODE register is written, the bit #3 is to be set to 1, otherwise anomalous
behaviors could occur.
The STEP_SEL parameter selects one of five possible stepping modes:
Table 20. 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
X
X
1/16 microstep
Every time the step mode is changed, the electrical position (i.e. the point of microstepping
sine wave that is generated) is reset to the first microstep.
Warning: Every time STEP_SEL is changed the value in the ABS_POS
register looses meaning and should be reset.
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