TMC2208 Datasheet, PDF (36/81 Pages) TRINAMIC Motion Control GmbH & Co. KG. – POWER DRIVER FOR STEPPER MOTORS

TMC220X, TMC222X DATASHEET (Rev. 1.02 / 2017-MAY-16)
36
5.4.3 DRV_STATUS – Driver Status Flags
0X6F: DRV_STATUS – DRIVER STATUS FLAGS AND CURRENT LEVEL READ BACK
Bit Name
31 stst
30 stealth
29 -
28
27
26
25
24
23 -
22
21
20 CS_
19 ACTUAL
18
17
16
15 -
14
13
12
Function
standstill indicator
stealthChop indicator
reserved
Comment
This flag indicates motor stand still in each operation
mode. This occurs 2^20 clocks after the last step pulse.
1: Driver operates in stealthChop mode
0: Driver operates in spreadCycle mode
Ignore these bits.
reserved
Ignore these bits.
actual motor current / Actual current control scaling, for monitoring the
smart energy current function of the automatic current scaling.
reserved
Ignore these bits.
11 t157
10 t150
9 t143
8 t120
7 olb
6 ola
5 s2vsb
4 s2vsa
3 s2gb
2 s2ga
1 ot
157°C comparator
150°C comparator
143°C comparator
120°C comparator
open load indicator
phase B
open load indicator
phase A
low side short
indicator phase B
low side short
indicator phase A
short to ground
indicator phase B
short to ground
indicator phase A
overtemperature flag
1: Temperature threshold is exceeded
1: Temperature threshold is exceeded
1: Temperature threshold is exceeded
1: Temperature threshold is exceeded
1: Open load detected on phase A or B.
Hint: This is just an informative flag. The driver takes no
action upon it. False detection may occur in fast motion
and standstill. Check during slow motion, only.
1: Short on low-side MOSFET detected on phase A or B.
The driver becomes disabled. The flags stay active, until
the driver is disabled by software (TOFF=0) or by the
ENN input. Flags are separate for both chopper modes.
1: Short to GND detected on phase A or B. The driver
becomes disabled. The flags stay active, until the driver
is disabled by software (TOFF=0) or by the ENN input.
Flags are separate for both chopper modes.
1: The selected overtemperature limit has been reached.
Drivers become disabled until otpw is also cleared due
to cooling down of the IC.
The overtemperature flag is common for both bridges.
0 otpw
overtemperature pre-
warning flag
1: The selected overtemperature pre-warning threshold
is exceeded.
The overtemperature pre-warning flag is common for
both bridges.
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