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L6480 Datasheet(PDF) 58 Page - STMicroelectronics

Part # L6480
Description  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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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6480 Datasheet(HTML) 58 Page - STMicroelectronics

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Programming manual
L6480
58/73
Doc ID 023278 Rev 3
Any attempt to write the CONFIG register when the motor is running causes the command
to be ignored and the NOTPERF_CMD flag to rise (Section 9.1.24).
9.1.24
STATUS
The STATUS register has the following structure:
When the HiZ flag is high it indicates that the bridges are in high impedance state. Any
motion command causes the device to exit from High Z state (HardStop and SoftStop
included), unless error flags forcing a High Z state are active.
The UVLO flag is active low and is set by an undervoltage lockout or reset events (power-up
included).
The UVLO_ADC flag is active low and indicates an ADC undervoltage event.
The OCD flag is active low and indicates an overcurrent detection event.
The STEP_LOSS_A and STEP_LOSS_B flags are forced low when a stall condition is
detected on bridge A or bridge B respectively.
The CMD_ERROR flag is active high and indicates that the command received by SPI can't
be performed or does not exist at all.
Table 43.
Available PWM frequencies [kHz]: 32-MHz oscillator frequency
F_PWM_DEC
F_PWM_
INT
000
001
010
011
100
101
110
111
000
39.1
46.9
54.7
62.5
78.1
93.8
109.4
125.0
001
19.5
23.4
27.3
31.3
39.1
46.9
54.7
62.5
010
13.0
15.6
18.2
20.8
26.0
31.3
36.5
41.7
011
9.8
11.7
13.7
15.6
19.5
23.4
27.3
31.3
100
7.8
9.4
10.9
12.5
15.6
18.8
21.9
25.0
101
6.5
7.8
9.1
10.4
13.0
15.6
18.2
20.8
110
5.6
6.7
7.8
8.9
11.2
13.4
15.6
17.9
Table 44.
STATUS register
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
STEP_LOSS_B
STEP_LOSS_
A
OCD
TH_SD
UVLO_AD
C
UVLO STCK_MOD
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
NOTPERF_CM
D
MOT_STATUS
DIR
SW_EV
N
SW_F
BUSY
HiZ



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