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參數(shù)資料
| 型號： | DK1241A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Advanced Microstepping Motion Control Chipset |
| 中文描述： | 高級微步運動控制芯片組 |
| 文件頁數(shù)： | 42/60頁 |
| 文件大?。?/td> | 422K |
| 代理商： | DK1241A |
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42
has been satisfied, the breakpoint mode is reset i.e. no additional
breakpoints will occur until a new breakpoint condition is set.
No 32-bit compare value is required to be loaded when using this
breakpoint mode.
SET_BRK_OFF
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
Set break point mode off
none
6d (hex)
current axis
all axes
no
SET_BRK_OFF sets the breakpoint mode to "off". Any breakpoint
mode that has been set previously (SET_TIME_BRK, SET_POS_BRK,
SET_NEG_BRK, SET_ACTL_POS_BRK or SET_ACTL_NEG_BRK)
and is still active (the breakpoint condition has not occurred), is
disabled with this command. After this command has been executed no
additional breakpoints will occur until a new breakpoint condition is set.
SET_BRK_PNT
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
Set break point comparison value
2/write
16 (hex)
current axis
all axes
no
SET_BRK_PNT sets the breakpoint comparison value. Its contents are
interpreted based on the type of breakpoint set; time based
(SET_TIME_BRK cmd) or position based (SET_POS_BRK cmd,
SET_NEG_BRK cmd, SET_POS_ACTL_BRK cmd, and
SET_NEG_ACTL_BRK cmd). When set to time-based the loaded value
is compared with the current chip set time at each cycle, and the value
loaded is a 32-bit number with units of cycles. When set to position-
based the loaded value is compared with the current axis target or
actual position at each cycle, and the value loaded is a 32-bit number
with units of usteps.
UPDATE
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
Immediately update parameters
none
1a (hex)
current axis
all axes
no
UPDATE immediately updates all double buffered parameters.
MULTI_UPDATE
Immediately update parameters for
multiple axis
1/write
5b (hex)
set by data word
all axes
no
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
MULTI_UPDATE immediately updates the double-buffered parameters
for 1 or more axis simultaneously. For each updated axis, the axis
behaves as if a separate UPDATE command had been given for each
axis. The associated data word contains a "positive-sense" bit mask for
each axis. A one (1) in the axis bit position indicates the axis will be
updated. A zero (0) indicates it will not. The following table shows this
bit encoding:
Bit #
0
1
2-15
Axis #updated
1
2
unused, must be set to 0
SET_AUTO_UPDATE_ON
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
Set automatic profile update on
none
5c (hex)
current
all axes
no
SET_AUTO_UPDATE_ON sets the automatic profile update
mechanismon. After this command is sent, a satisfied breakpoint
condition will result in all of the double-buffered parameters
automatically being transferred to the active registers. Once set to this
mode, the axis will stay in this mode until explicitly commanded out
using the SET_AUTO_UPDATE_OFF command.
SET_AUTO_UPDATE_OFF
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
Set automatic profile update off
none
5d (hex)
current
all axes
no
SET_AUTO_UPDATE_OFF sets the automatic profile update
mechanismoff. After this command is sent, a satisfied breakpoint
condition will
not
result in the double-buffered parameters automatically
being transferred to the active registers. Once set to this mode, the axis
will stay in this mode until explicitly commanded out using the
SET_AUTO_UPDATE_ON command.
When in this mode, the only way that profile parameters can be
updated is through the UPDATE or the MULTI_UPDATE
commands.
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