Page 196 - MDP2020-2

| 인천전자마이스터고등학교 ·············································································································
190

begin
if(!rst)
begin
step <= 0;
end
else
begin
if(time_count >= SPEED)
begin
step <= step + 1;
end
else
begin
step <= step;
end
end
end
/*
always @(step)
begin
case(step)
0: step_phase <= A;
1: step_phase <= B;
2: step_phase <= A_;
3: step_phase <= B_;
endcase

end
*/

always @(step)
begin
case(step)
0: step_phase <= A;
1: step_phase <= A|B;
2: step_phase <= B;
3: step_phase <= B|A_;
4: step_phase <= A_;
5: step_phase <= A_|B_;
6: step_phase <= B_;
7: step_phase <= B_|A;
endcase
end
endmodule

module adc_conversion(clk, rst, eoc, adc_clk, channel, ale, start, oe, adc_out, adc_in);