ADLINK Technology cPCI-8168, Руководство пользователя

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160 Function Library
6.15 Position Control and Counters
@ Name
_8168_get_position
– Get the value of feedback position
counter
_8168_set_position
– Set the feedback position counter
_8168_get_command
– Get the value of command position
counter
_8168_set_command
– Set the command position counter
_8168_get_error_counter
– Get the value of position error
counter
_8168_reset_error_counter
– Reset the position error
counter
_8168_get_general_counter
– Get the value of general
counter
_8168_set_general_counter
– Set the general counter
_8168_get_target_pos
– Get the value of target position
recorder
_8168_reset_target_pos
– Reset target position recorder
_8168_get_rest_command
– Get remaining pulse till end of
motion
_8168_check_rdp
– Get the ramping down point data
@ Description
_8168_get_position
():
This function is used to read the value of feedback position
counter. Note, this value has already been processed by move
ratio. If move ratio is 0.5, than the value read will be twice as much
as the counter value. The source of feedback counter is selectable
by function
_8168_set_feedback_src
() to be external EA/EB
or pulse output of cPCI-8168.
_8168_set_position():