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参数资料
| 型号： | L6470HTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 7 A, PDSO28 |
| 封装： | ROHS COMPLIANT, HTSSOP-28 |
| 文件页数： | 31/64页 |
| 文件大小： | 814K |
| 代理商： | L6470HTR |
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L6470
Programming manual
Doc ID 16737 Rev 2
37/64
9.1.1
ABS_POS
The ABS_POS register contains the current motor absolute position in agreement to the
selected step mode; the stored value unit is equal to the selected step mode (full, half,
quarter, etc.). The value is in two's complement format and it ranges from -221 to +221-1.
At power-on the register is initialized to “0” (HOME position).
Any attempt to write the register when the motor is running causes the command to be
ignored and the NOTPERF_CMD flag to rise (see paragraph 9.1.22).
9.1.2
EL_POS
The EL_POS register contains the current electrical position of the motor. The two MSbits
indicate the current step and the other bits indicate the current microstep (expressed in
step/128) within the step.
When the EL_POS register is written by the user the new electrical position is instantly
imposed. When the EL_POS register is written its value must be masked in order to match
with the step mode selected in STEP_MODE register in order to avoid a wrong microstep
value generation (see paragraph 9.1.19); otherwise the resulting microstep sequence will be
incorrect.
Any attempt to write the register when the motor is running causes the command to be
ignored and the NOTPERF_CMD flag to rise (see paragraph 9.1.22).
h18
CONFIG
IC configuration
16
2E88
Internal oscillator,
2MHz OSCOUT clock,
supply voltage compensation
disabled,
overcurrent shutdown enabled,
slew-rate = 290 V/s
PWM frequency = 15.6kHz.
R, WH
h19
STATUS
Status
16
XXXX(2)
High impedance state,
UVLO/Reset flag set.
R
h1A
RESERVED
Reserved address
h1B
RESERVED
Reserved address
1.
R: Readable, WH: writable only when outputs are in high impedance, WS: writable only when motor is stopped, WR:
always writable.
2.
According to startup conditions.
Table 8.
Registers map (continued)
Address
[Hex]
Register name
Register function
Len.
[bit]
Reset
Hex
Reset
Value
Remarks
(1)
Table 9.
EL_POS register
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
STEP
MICROSTEP
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| L6470HTR-CUT TAPE | 制造商:ST 功能描述:L6470H Series 45 V Quad Output dSPIN Microstepping Motor Driver - HTSSOP-28 |
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