TMC2209-V1.2 manual Shenzhen Biqu Technology Co., Ltd.
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5.2、Pin Mode
J1
Mode
J2
Mode
1
(
EN
)
Enable
1
(
VM
)
Power voltage
2
(
MS1
)
Microstep setting
2
(
GND
)
Ground
3
(
MS2
)
Microstep setting
3
(
A2
)
Phase A
4
(
PDN
)
UART
4
(
A1
)
Phase A
5
(
PDN
)
UART
5
(
B1
)
Phase B
6
(
CLK
)
clock
6
(
B2
)
Phase B
7
(
STEP
)
Pulse input
7
(
VCC_IO
)
Logic voltage
8
(
DIR
)
Direction input
8
(
GND
)
Ground
DIAG
Diagnostic and StallGuard output. Hi level upon stall
detection or;driver error. Reset error condition by ENN=high.
VREF
Analog reference voltage for current scaling or reference
current for;use of internal sense resistors (optional mode)
INDEX
Configurable index output. Provides index pulse.