Design a bidirectional, half-step controller for a stepper motor using an HDL. The direction control...

Question

Design a bidirectional, half-step controller for a stepper motor using an HDL. The direction control input (dir) will produce a clockwise (CW) pattern when HIGH or counterclockwise when LOW. The sequence is given in Figure XXXXXXXXXXSimulate the sequential circuit.

Answer

David · Accepted Answer

Qn ID: 2213591
Solution :
SUBDESIGN stepper_ahdl
(
clock, dir
q[3 ..0]
)
:INPUT;
:OUTPUT;
VARIABLE
stepper :MACHINE OF BITS  (q[3 ..0])
WITH STATES (initial'" B"OOOO", sl = B"0101", s2 = B"OOOl",
s3 B"1001", s4 B"1000", s5 = B"1010", s6 = B"OOlO",
s7 = B"0110", s8 = B"0100");
BEGIN
stepper. elk = clock;
IF dir -- VCC THEN
CASE stepper IS
WHEN
WHEN
initial
sl
=>
=>
stepper
stepper
sl ;
s2;
WHEN s2 => stepper s3;
WHEN
WHEN
WHEN
WHEN
WHEN
s3
s4
s5
s6
s7
=>
=>
=>
=>
=>
stepper
stepper
stepper
stepper
stepper
s4;

Design a bidirectional, half-step controller for a stepper motor using an HDL. The direction control input (dir) will produce a clockwise (CW) pattern when HIGH or counterclockwise when LOW. The...

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