Nova Electronics MCX514, Руководство пользователя

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NOVA electronics Inc. MCX514 -
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3.4 Bit Pattern Interpolation
MCX514 bit pattern interpolation is the operation that
performs interpolation of several axes by specifying
whether to output pulses in the + or – direction by a unit
of 1 drive pulse. It can interpolate from 2 axes up to 4
axes.
The user sets drive pulse in the + or – direction by one
bit one pulse from the CPU to each interpolation axis, 1
is to output and 0 is not to output.
For example, to draw the profile as shown in the right
Fig. 3.4-1, if output of drive pulse each in X+, X-, Y+,
Y- direction is “1”, and no output is “0”, the bit pattern
data is as follows.
Fig. 3.4-1 Example of Bit Pattern Interpolation
The operation procedures to perform bit pattern interpolation are as follows.
Fig. 3.4-2 Operation Procedures for Bit Pattern Interpolation
Set interpolation speed
Write bit pattern data
Write interpolation driving command
Set interpolation axis
Is full pre-buffer?
Interpolation data
finished?
Yes
N o
Yes
N o
Finished
Ｘ＋
Ｙ＋
0
16
32
48
64
79
Start point
Finish point
64 48 32 16 0
10010111 11111111 11111110 10000000 00000000 00000000 00000011 11111111 11111111 11100100 :XPP(X ＋ direction pulse)
10000000 00000000 00000000 00001111 11111111 11111111 01000000 00000000 00000000 00000000 :XPM(X － direction pulse)
00000000 00000000 00011111 11111111 01001010 10101011 11111111 11010000 00000000 00000000 :YPP(Y ＋ direction pulse)
01111111 00100000 00000000 00000000 00000000 00000000 00000000 00000000 00000011 11111111 :YPP(Y － direction pulse)