zynq-7000

zynq-7000 보드를 이용하여 세탁기를 구현하는 프로젝트이다. xdc 핀 맵을 비롯하여, 기능들을 기획하고 모듈을 구성하여 완성시킬 예정이다.

LED_TEST

기기의 전원과 동작상태를 사용자에게 알릴 수 있는 LED의 점멸/on/off 상태를 구현하기 위해 LED로 테스트를 먼저 시행한다.

cnt_1s.v

	`timescale 1ns / 1ps

module cnt_1ms
(
   input               clk, rst, //125MHz = 8ns
   
   output  reg         clk_s   //1s
);

   reg         [39:0]  clk_reg;

always @ (posedge clk or negedge rst)
begin
   if (!rst)
   begin
       clk_s <= 1'b1;
       clk_reg <= 40'b0;
   end
   
   else
   begin
       if (clk_reg == 40'd124999999)
       begin
           clk_s <= ~clk_s; 
           clk_reg <= 40'd0;
       end
       
       else
       begin
       	clk_reg <= clk_reg + 1'b1;
       end
   end
end

endmodule

LED_TEST.v

	`timescale 1ns / 1ps

module WM_LED_TEST
(
    input   clk, rst,
    input   led_en,
    //input   led_clk_cnt,
    input   clk_cnt_1secEnd,
    
    output reg  led_out
);

always @ (posedge clk or negedge rst)
begin
    if (!rst)
    begin
        led_out <= 1'b0;
    end
    
    else if (led_en == 1'b0)
    begin
        led_out <= 1'b0;
    end
    
    else
    begin
        led_out <= clk_cnt_1secEnd;
    end
end

endmodule

top.v

`timescale 1ns/1ps

module LED_top
(
    input clk, rst,
    
    output red_led_wash,
    output red_led_rinse,
    output red_led_dry,
    output red_led_repeat,
    output red_led_water_height,
    output red_led_hot_cold,
    
    output green_led_water_high,
    output green_led_water_mid,
    output green_led_water_low,
    
    output green_led_hot_only,
    output green_led_cold_only,
    output green_led_hot_cold
);

wire reset = !rst;

cnt_1ms
    inst_cnt_1ms
(
     clk, reset, //125MHz = 8ns
   
     clk_sec   //1ms
);

WM_LED_TEST 
    wm_led_onoff_wash 
(
    clk, reset, 
    1'b1, 
    //clk_ms,
    clk_sec, 
    
    red_led_wash
);

WM_LED_TEST 
    wm_led_onoff_rinse 
(
    clk, reset, 
    1'b1, 
    // clk_ms,
    clk_sec, 
    
    red_led_rinse
);
 
WM_LED_TEST 
    wm_led_onoff_dry 
(
    clk, reset, 
    1'b1, 
     //clk_ms,
    clk_sec, 
    
    red_led_dry
);

assign red_led_repeat       =0;
assign red_led_water_height=0;
assign red_led_hot_cold    =0;
                    
assign green_led_water_high=0;
assign green_led_water_mid =0;
assign green_led_water_low =0;
                 
assign green_led_hot_only  =0;
assign green_led_cold_only =0;
assign green_led_hot_cold   =0;

endmodule

led.xdc

	# PL System Clock
set_property -dict {PACKAGE_PIN H16 IOSTANDARD LVCMOS33} [get_ports clk]
create_clock -period 8.000 -name sys_clk_pin -waveform {0.000 4.000} -add [get_ports clk]

# ResetN
set_property -dict {PACKAGE_PIN D20 IOSTANDARD LVCMOS33} [get_ports rst]

## ChipKit Inner Digital Header
set_property -dict {PACKAGE_PIN R16 IOSTANDARD LVCMOS33} [get_ports red_led_wash]
set_property -dict {PACKAGE_PIN U12 IOSTANDARD LVCMOS33} [get_ports red_led_rinse]
set_property -dict {PACKAGE_PIN U13 IOSTANDARD LVCMOS33} [get_ports red_led_dry]
set_property -dict {PACKAGE_PIN V15 IOSTANDARD LVCMOS33} [get_ports red_led_repeat]
set_property -dict {PACKAGE_PIN T16 IOSTANDARD LVCMOS33} [get_ports red_led_water_height]
set_property -dict {PACKAGE_PIN U17 IOSTANDARD LVCMOS33} [get_ports red_led_hot_cold]
set_property -dict {PACKAGE_PIN T17 IOSTANDARD LVCMOS33} [get_ports green_led_water_high]
set_property -dict {PACKAGE_PIN R18 IOSTANDARD LVCMOS33} [get_ports green_led_water_mid]
set_property -dict {PACKAGE_PIN P18 IOSTANDARD LVCMOS33} [get_ports green_led_water_low]
set_property -dict {PACKAGE_PIN N17 IOSTANDARD LVCMOS33} [get_ports green_led_hot_only]
set_property -dict {PACKAGE_PIN M17 IOSTANDARD LVCMOS33} [get_ports green_led_cold_only]
set_property -dict {PACKAGE_PIN L17 IOSTANDARD LVCMOS33} [get_ports green_led_hot_cold]

결과

1초마다 핀 상태를 바꿈으로써 LED를 점멸시켰다. 코드를 작성한 후 합성한 뒤에 bitstream file을 생성하여 FPGA 보드에 삽입하면, 작동을 확인할 수 있다.