TMC4330A Datasheet | Document Revision 1.01 • 2017-JAN-12
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At the same time when an enabled virtual stop switch becomes active the related
status flag is activated in the STATUS flags register 0x0F. The flag remains active as
long as the stop switch remains active.
How Active
Virtual Stops are
indicated and
reset to Free
Motion
The particular event is also released in the EVENTS register 0x0E, which remains active
until the event is reset manually. When VACTUAL = 0 is reached after the stop event
no motion in the particular direction is possible.
In order to move into the locked direction, the following is required:
PRECONDITION 1:
The particular stop switch is NOT active anymore because the actual position does not
exceed the specified limit.
AND/OR
PRECONDITION 2:
Virtual stop switch is disabled (virtual_left/right_limit_en = 0).
Action:
Set back active event by reading out EVENTS register 0x0E.
i
See information about clearing events provided in section 5.1. , page 21.
Result:
The active virtual stop event bit is reset to free motion into the direction that was
locked beforehand.
i
invert_stop_direction has no influence on VIRTUAL_STOP_LEFT and
VIRTUAL_STOP_RIGHT.
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