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MC1451A Datasheet(PDF) 39 Page - List of Unclassifed Manufacturers

Part No. MC1451A
Description  Advanced Step Motor Control Chipset
Download  51 Pages
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Maker  ETC1 [List of Unclassifed Manufacturers]
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MC1451A Datasheet(HTML) 39 Page - List of Unclassifed Manufacturers

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39
returned is a 32 bit signed number with units of steps/cycle,
represented in 1/216 format. The range is -1,073,741,824 to
+1,073,741,823.
Parameter Update
SET_TIME_BRK
Set break point mode to time based
Data/direction:
none
Encoding:
17 (hex)
Axis acted on:
current axis
Available on:
all axes
Double buffered:
no
SET_TIME_BRK sets the current breakpoint mode to time based. In
this mode the value loaded into the breakpoint register (SET_BRK_PNT
cmd) will represent the number of cycles since chip set power on. After
the SET_TIME_BRK command is executed, at each loop the break
point value will be compared against the current chip set time. If the
values are equal all double-buffered parameters will be loaded in to the
active registers. See GET_TIME cmd for information on the chip set
time. After this breakpoint condition has been satisfied, the breakpoint
mode is reset i.e. no additional breakpoints will occur until a new
breakpoint condition is set.
SET_POS_BRK
Set break point mode to positive target
position based
Data/direction:
none
Encoding:
18 (hex)
Axis acted on:
current axis
Available on:
all axes
Double buffered:
no
SET_POS_BRK sets the current breakpoint mode to positive target
position based. In this mode the value loaded into the breakpoint
register (SET_BRK_PNT cmd) will represent the axis position in steps.
After the SET_POS_BRK command is executed, at each cycle the
break point value will be compared against the current axis target
position. If the target position has a value equal to or greater than the
breakpoint register then all double-buffered parameters will be loaded in
to the active registers. After this breakpoint condition has been
satisfied, the breakpoint mode is reset i.e. no additional breakpoints will
occur until a new breakpoint condition is set.
SET_NEG_BRK
Set break point mode to negative target
position based
Data/direction:
none
Encoding:
19 (hex)
Axis acted on:
current axis
Available on:
all axes
Double buffered:
no
SET_NEG_BRK sets the current breakpoint mode to negative target
position based. In this mode the value loaded into the breakpoint
register (SET_BRK_PNT cmd) will represent the axis position in steps
After the SET_NEG_BRK command is executed, at each cycle the
break point value will be compared against the current axis target
position. If the target position has a value equal to or less than the
breakpoint register then all double-buffered parameters will be loaded
into the active registers. After this breakpoint condition has been
satisfied, the breakpoint mode is reset i.e. no additional breakpoints will
occur until a new breakpoint condition is set.
SET_ACTL_POS_BRK
Set break point mode to positive actual
position based
Data/direction:
none
Encoding:
1b (hex)
Axis acted on:
current axis
Available on:
all axes
Double buffered:
no
SET_ACTL_POS_BRK sets the current breakpoint mode to positive
actual position based. In this mode the value loaded into the breakpoint
register (SET_BRK_PNT cmd) will represent the axis position in steps.
After the SET_ACTL_POS_BRK command is executed, at each cycle
the break point value will be compared against the current axis actual
position. If the actual position has a value equal to or greater than the
breakpoint register then all double-buffered parameters will be loaded in
to the active registers. After this breakpoint condition has been
satisfied, the breakpoint mode is reset i.e. no additional breakpoints will
occur until a new breakpoint condition is set..
This command is available on the MC1451A-E, MC1251A-E, and
MC1151A-E parts only.
SET_ACTL_NEG_BRK
Set break point mode to negative actual
position based
Data/direction:
none
Encoding:
1c (hex)
Axis acted on:
current axis
Available on:
all axes
Double buffered:
no
SET_ACTL_NEG_BRK sets the current breakpoint mode to negative
actual position based. In this mode the value loaded into the breakpoint
register (SET_BRK_PNT cmd) will represent the axis position in steps
After the SET_ACTL_NEG_BRK command is executed, at each cycle
the break point value will be compared against the current axis actual
position. If the actual position has a value equal to or less than the
breakpoint register then all double-buffered parameters will be loaded
into the active registers. After this breakpoint condition has been
satisfied, the breakpoint mode is reset i.e. no additional breakpoints will
occur until a new breakpoint condition is set.
This command is available on the MC1451A-E, MC1251A-E, and
MC1151A-E parts only.


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