L6480 datasheet(58/73 Pages) STMICROELECTRONICS

tên linh kiện	L6480

Giải thích chi tiết về linh kiện	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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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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58 / 73 page

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_

OCD

TH_SD

UVLO_AD

UVLO STCK_MOD

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

NOTPERF_CM

MOT_STATUS

DIR

SW_EV

SW_F

BUSY

HiZ

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