EVAL6470H Datasheet, PDF (46/70 Pages) STMicroelectronics – dSPIN fully integrated microstepping motor driver with motion engine and SPI

Programming manual
L6470
Table 13. Winding resistance thermal drift compensation coefficient (continued)
K_THERM [3..0]
Compensation coeff.
1
1
1
0
1.4375
1
1
1
1
1.46875
9.1.16
ADC_OUT
The ADC_OUT register contains the result of the analog-to-digital conversion of the ADCIN
pin voltage; the result is available even if the supply voltage compensation is disabled.
Any attempt to write to the register causes the command to be ignored and the
NOTPERF_CMD flag to rise (see Section 9.1.22).
Table 14. ADC_OUT value and motor supply voltage compensation feature
V_S
V_ADCIN/V_REG
ADC_OUT
[4..0]
Compensation
coefficient
Greater than V_S,_nom + 50%
V_S,_nom + 50%
> 24/32
24/32
1 1 XXX
11000
0.65625
0.65625
V_S,_nom
16/32
10000
1
V_S,_nom – 50%
Lower than V_S,_nom – 50%
8/32
< 8/32
01000
0 0 XXX
1.968875
1.968875
9.1.17
OCD_TH
The OCD_TH register contains the overcurrent threshold value (see Section 6.9). The
available range is from 375 mA to 6 A, in steps of 375 mA, as shown in Table 15.
Table 15. 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
5.625 A
1
1
1
1
6A
9.1.18
STALL_TH
The STALL_TH register contains the stall detection threshold value (see Section 7.2). The
available range is from 31.25 mA to 4 A with a resolution of 31.25 mA.
46/70
Doc ID16737 Rev 5