FPGA序列脉冲波形发生器

开发环境：Quartus Prime 18.0

设备：小脚丫开发板，搭载AlteraMAX10 10M02SCM153C8G

语言：verilog HDL

程序效果：

        基本功能完成情况

                (1)实现了2bit目标脉冲波形的输出

                (2)实现了清零的功能

        扩展功能完成情况

                (1)实现了目标序列脉冲的反相输出，以及暂停保持的功能

                (2)采用两颗RGB LED展示状态信息

主程序代码：

/*************************************************************
 * Module: Pulses Generator
 * Date  : 2024-6-15
 * Function:
 *   LED1 | LED2   : Display 2-bit pulses
 * 
 *   RGB_LED1:
 *     Green Light : Normal working
 *     Blue Light  : Reverse working
 * 
 *   RGB_LED2:
 *     Green Light : Normal working
 *     Yellow Light: Hold status
 *     Red Light   : Reset status
 * 
 *   SW1  : Control reset
 *   SW2  : Control normal and reverse status
 *   Key1 : Control hold status
 *************************************************************/
 
module pulses(
input clk,rst,hold,reverse, //PCLK, SW1, Key1, SW2
output  reg[2:0] led,     //RGB_LED2: normal or hold or rst 
output  reg[2:0] led1,    //RGB_LED1: normal or reverse
output  reg[1:0] z,    //LED1 | LED2
output  [17:0] seg
);
 
//define light color
parameter GREEN =3'b101,
			 BLUE  =3'b110,
			 RED   =3'b011,
			 YELLOW=3'b001;
 
//divider: pluse of 1s
reg VDD;
initial VDD=1;
divider #(.N(6000000),.WIDTH(24))divider1(
	.clk(clk),
	.rst(VDD),
	.clk_out(clk1)
);
 
//segment: show group No.: 30
reg [7:0]group_num;
segment7 high(.A(group_num[7:4]),.g_to_a(seg[17:9]));
segment7 low(.A(group_num[3:0]),.g_to_a(seg[8:0]));
 
//pulses generator
wire [1:0]zp;  //POSITIVE
wire [1:0]zn;  //NEGATIVE
reg [2:0]state;
parameter S0=3'b000,
			 S1=3'b010,
			 S2=3'b111,
			 S3=3'b110;
always@(posedge clk1,negedge rst, negedge hold)
begin
   group_num<=8'b0011_0000;  //BCD code: group No.30
	//reset
	if(!rst) begin state<=S0;led<=RED; end  
	//hold
	else if(!hold) begin state<=state;led<=YELLOW; end 
	//normal working
	else
		begin     
			led<=GREEN;
			case(state)
				S0: state<=S1;
				S1: state<=S2;
				S2: state<=S3;
				S3: state<=S0;
			endcase
		end	
end
assign zp=~state[1:0];
assign zn=state[1:0];
 
//selector: zp or zn
always @(reverse)
begin
	if(!reverse) begin z=zn;led1=BLUE; end
	else			 begin z=zp;led1=GREEN; end
end
	
endmodule

子模块 1：分频器

module divider(
	inout clk,
	input rst,
	output reg clk_out
);
parameter N=6000000,WIDTH=24;
 
reg [WIDTH-1:0] cnt;
always @(posedge(clk),posedge(rst)) 
	begin
		if(rst==1'b1)
		cnt<=24'b0;
		else if(cnt==N-1)
		cnt<=24'b0;
		else
		cnt<=cnt+1;
	end
	
always @(posedge(clk),posedge(rst))
	begin
		if(rst==1'b1)
		clk_out<=1'b0;
		else if(cnt==N-1)
		clk_out<=~clk_out;
		else
		clk_out<=clk_out;
	end
endmodule

 子模块2：数码管

module segment7(
	input wire [3:0] A,
	output wire [8:0] g_to_a
);
	reg [8:0] seg[15:0];
initial 
		begin
		seg[4'b0000]=9'h3f;
		seg[4'b0001]=9'h06;
		seg[4'b0010]=9'h5b;
		seg[4'b0011]=9'h4f;
		seg[4'b0100]=9'h66;
		seg[4'b0101]=9'h6d;
		seg[4'b0110]=9'h7d;
		seg[4'b0111]=9'h07;
		seg[4'b1000]=9'h7f;
		seg[4'b1001]=9'h6f;
		seg[4'b1010]=9'h77;
		seg[4'b1011]=9'h7c;
		seg[4'b1100]=9'h39;
		seg[4'b1101]=9'h5e;
		seg[4'b1110]=9'h79;
		seg[4'b1111]=9'h71;
		end
		assign g_to_a = seg[A];
endmodule

管脚分配：

Analysis&Synthesis成功：

Compile Design成功：

programmer成功：

视频展示：