安徽省机器人大赛练习（C赛道）_安徽省21年机器人竞赛的题目

作者：知新_RL | 2024-04-18 23:10:00

踩

安徽省21年机器人竞赛的题目

简单的练习一下，题目要求如下：

用LCD屏显示温湿度
驱动电机转动
当湿度低于某个阈值时电机速度变快
用LCD屏显示电机转速
设置按钮A，使电机停止
设置按钮B，使电机速度进入手动控制模式
设置按钮C，每按一次电机速度发生变化
设置按钮D，再次进入自动模式

代码如下：

LCD12864：


 
module lcd12864_drive
(
	input 	       clock,
	input 	       reset,
	input  [63:0] data_buf,
	output         lcd12864_rs,
	output         lcd12864_rw,
	output         lcd12864_en,
	output   [7:0] lcd12864_data
);
 
 
wire [63:0] data_buf;
 
 
/**************************产生lcd12864时钟信号*************************/
 
reg clk_lcd12864;
reg [19:0]cnt;
always @(posedge clock or posedge reset)
begin
    if (reset)
    begin 
        cnt <= 20'b0;
        clk_lcd12864 <= 0;
    end   
    else if(cnt == 20'd20000)				//时钟频率非常重要！！将近3k，经实测5k会在第0位出错。
    begin 
        cnt <= 20'd0;
        clk_lcd12864 <= ~clk_lcd12864;
    end   
    else 
        cnt <= cnt +1'b1;
end
 
 
reg [1:0] clk_lcd12864_sync;
always @(posedge clock or posedge reset)
begin
    if (reset)
        clk_lcd12864_sync <= 2'b00;   
    else 
        clk_lcd12864_sync <= {clk_lcd12864_sync[0],clk_lcd12864};
end
 
assign clk_lcd12864_pos = (clk_lcd12864_sync == 2'b01);
 
 
//****************************lcd12864控制信号*****************************************/                           
reg [8:0] state; //State Machine code
parameter IDLE  	    = 4'd0;             
parameter CMD_WIDTH 	= 4'd1;             //设置数据接口数量
parameter CMD_SET 		= 4'd2;				//选择指令集
parameter CMD_CURSOR 	= 4'd3;             //设置光标
parameter CMD_CLEAR 	= 4'd4;          	//清屏
parameter CMD_ACCESS   = 4'd5;          	//输入方式设置：数据读写操作后，地址自动加一/画面不动
parameter CMD_DDRAM    = 4'd6;          	//DDRAM行地址
parameter DATA_WRITE	= 4'd7;             //数据写入
parameter STOP 		= 4'd8;             //
 
reg lcd12864_rs_r;
reg [7:0] lcd12864_data_r;
reg [7:0] data_buff;
 
reg [5:0] cnt_time;
 
//输出管教配置
assign lcd12864_rs = lcd12864_rs_r;
assign lcd12864_rw = 1'b0; 
assign lcd12864_en = clk_lcd12864_sync[1]; 									//与lcd12864时钟相同
assign lcd12864_data = lcd12864_data_r;
	
 
always @(posedge clock or posedge reset)
begin
	if(reset)
	begin
		lcd12864_rs_r <= 1'b0;
		state <= IDLE;
//		lcd12864_data_r <= 8'bzzzzzzzz;							//高阻态
        lcd12864_data_r <= 8'b11111111;							//高阻态
		cnt_time <= 6'd0;
	end
	else if(clk_lcd12864_pos)
	begin
		case(state)
			IDLE:  
			begin  
				lcd12864_rs_r <= 1'b0;
				cnt_time <= 6'd0;
				state <= CMD_WIDTH;
//				lcd12864_data_r <= 8'bzzzzzzzz;  
                lcd12864_data_r <= 8'b11111111;  
 
			end
			CMD_WIDTH:
			begin
				lcd12864_rs_r <= 1'b0;
				state <= CMD_SET;	
				lcd12864_data_r <= 8'h30; 							//8位数据口
			end
			CMD_SET:
			begin
				lcd12864_rs_r <= 1'b0;
				state <= CMD_CURSOR;
				lcd12864_data_r <= 8'h30; 							//基本指令集
			end
			CMD_CURSOR:
			begin
				lcd12864_rs_r <= 1'b0;
				state <= CMD_CLEAR;
				lcd12864_data_r <= 8'h0c; 							// 关光标
			end
			CMD_CLEAR:
			begin
				lcd12864_rs_r <= 1'b0;
				state <= CMD_ACCESS;
				lcd12864_data_r <= 8'h01;							//清屏
			end
			CMD_ACCESS:
			begin
				lcd12864_rs_r <= 1'b0;
				state <= CMD_DDRAM;
				lcd12864_data_r <= 8'h06; 							//进入点设定
			end
			CMD_DDRAM:											//行数命令
			begin
				lcd12864_rs_r <= 1'b0;
				state <= DATA_WRITE;
				case (cnt_time)
					6'd0:		lcd12864_data_r <= 8'h80;
					6'd16:	lcd12864_data_r <= 8'h90;
					6'd32:	lcd12864_data_r <= 8'h88;
					6'd48:	lcd12864_data_r <= 8'h98;
				endcase
			end
			DATA_WRITE:												//写数据
			begin
				lcd12864_rs_r <= 1'b1;
				cnt_time <= cnt_time + 1'b1;
				lcd12864_data_r <= data_buff;
				case (cnt_time)
					6'd15:	state <= CMD_DDRAM;
					6'd31:	state <= CMD_DDRAM;
					6'd47:	state <= CMD_DDRAM;
					6'd63:	state <= STOP;
					default:	state <= DATA_WRITE;
				endcase
			end
			STOP:
			begin
				lcd12864_rs_r <= 1'b0;
				state <= CMD_DDRAM;
				lcd12864_data_r <= 8'h80;								//从第几行循环
				cnt_time <= 6'd0;
			end
			default: 
				state <= IDLE;
		endcase
	end
end
 
 
always @(cnt_time)
begin
	case (cnt_time)
		6'd0:  data_buff <= "W";
		6'd1:  data_buff <= ":";
		6'd2:  data_buff <= 8'h20;
		6'd3:  data_buff <= data_buf[15:8]+8'h30;//温湿度
		6'd4:  data_buff <= 8'h20;
		6'd5:  data_buff <= 8'h20;
		6'd6:  data_buff <= data_buf[7:0]+8'h30;
		6'd7:  data_buff <= 8'h20;
		6'd8:  data_buff <= 8'h20;
		6'd9:  data_buff <=  "S";
		6'd10:  data_buff <= ":";
		6'd11:  data_buff <= 8'h20;
		6'd12:  data_buff <= data_buf[31:24]+8'h30;
		6'd13:  data_buff <= 8'h20;
		6'd14:  data_buff <= 8'h20;
		6'd15:  data_buff <= data_buf[23:16]+8'h30;
		6'd16:  data_buff <= 8'h20;//下一行开头
		6'd17:  data_buff <= 8'h20;
		6'd18:  data_buff <= data_buf[63:56]+8'h30;//速度
		6'd19:  data_buff <= 8'h20;
		6'd20:  data_buff <= data_buf[55:48]+8'h30;
		6'd21:  data_buff <= 8'h20;
		6'd22:  data_buff <= data_buf[47:40]+8'h30;
		6'd23:  data_buff <= 8'h20;
		6'd24:  data_buff <= data_buf[39:32]+8'h30;
		6'd25:  data_buff <= 8'h20;
		6'd26:  data_buff <= 8'h20;
		6'd27:  data_buff <= 8'h20;//数字0
		6'd28:  data_buff <= 8'h20;//数字1
		6'd29:  data_buff <= 8'h20;//数字2
		6'd30:  data_buff <= 8'h20;
		6'd31:  data_buff <= 8'h20;
		
		6'd32:  data_buff <= 8'h20;
		6'd33:  data_buff <= 8'h20;
		6'd34:  data_buff <= 8'h20;
		6'd35:  data_buff <= 8'h20;
		6'd36:  data_buff <= 8'h20;
		6'd37:  data_buff <= 8'h20;
		6'd38:  data_buff <= 8'h20;
		6'd39:  data_buff <= 8'h20;
		6'd40:  data_buff <= 8'h20;
		6'd41:  data_buff <= 8'h20;
		6'd42:  data_buff <= 8'h20;
		6'd43:  data_buff <= 8'h20;
		6'd44:  data_buff <= 8'h20;
		6'd45:  data_buff <= 8'h20;
		6'd46:  data_buff <= 8'h20;
		6'd47:  data_buff <= 8'h20;
		
		6'd48:  data_buff <= 8'h20;
		6'd49:  data_buff <= 8'h20;
		6'd50:  data_buff <= 8'h20;
		6'd51:  data_buff <= 8'h20;
		6'd52:  data_buff <= 8'h20;
		6'd53:  data_buff <= 8'h20;
		6'd54:  data_buff <= 8'h20;
		6'd55:  data_buff <= 8'h20;
		6'd56:  data_buff <= 8'h20;
		6'd57:  data_buff <= 8'h20;
		6'd58:  data_buff <= 8'h20;
		6'd59:  data_buff <= 8'h20;
		6'd60:  data_buff <= 8'h20;
		6'd61:  data_buff <= 8'h20;
		6'd62:  data_buff <= 8'h20;
		6'd63:  data_buff <= 8'h20;
 
		default :  data_buff <= 8'h02;
	endcase
end
 
 
endmodule

button：


 
module button
(
	input 		  clock,
	input 		  reset,
	input 	[3:0] row,	//行
	output 	[3:0] col,	//列
	output 	[3:0] key_value,
	
	output 		  key_out_flag
);
 
 
reg [3:0] col;
reg [3:0] key_value;
reg [31:0] count;
wire clk_20ms_flag;
reg [2:0] state;  //状态标志
reg key_flag;   //按键标志位
reg key_out_flag;
reg [3:0] col_reg;  //寄存扫描列值
reg [3:0] row_reg;  //寄存扫描行值
 
 
always @(posedge clock or posedge reset)
begin
	if(reset)
		count <= 0;
	else
		count <= count + 1;
end
 
 
assign clk_20ms_flag = (count[20:0] == 21'd2000000);
 
 
 
always @(posedge clock or posedge reset)
begin
	if(reset)
	begin
		col <= 4'b0000;
		state <= 0;
	end
	else if(clk_20ms_flag)
    case (state)
	0:
		begin
			col[3:0] <= 4'b0000;
         	key_flag <= 1'b0;
 
         	if(row[3:0] != 4'b1111)
			begin
				state <= 1;
				col[3:0] <= 4'b1110;
			end //有键按下，扫描第一行
 
         	else
				state <= 0;
		
        end
 
	1:
		begin
			if(row[3:0] != 4'b1111)
				state <= 5;//判断是否是第一行
        	else
			begin
				state <= 2;
				col[3:0] <= 4'b1101;
			end  //扫描第二行
         end
 
    2:
		begin
	        if(row[3:0] != 4'b1111)
				state <= 5;//判断是否是第二行
			else
			begin
				state <= 3;
				col[3:0] <= 4'b1011;
			end  //扫描第三行
 
        end
 
    3:
		begin
			if(row[3:0] != 4'b1111)
				state <= 5; //判断是否是第三一行
        	else
			begin
				state <= 4;
				col[3:0] <= 4'b0111;
			end  //扫描第四行
        end
 
    4:
		begin
        	if(row[3:0] != 4'b1111)
				state <= 5;//判断是否是第一行
 
        	else
				state <= 0;
         end
 
	5:
		begin
			if(row[3:0] != 4'b1111)
			begin
				col_reg <= col;  //保存扫描列值
				row_reg <= row;  //保存扫描行值
				state <= 5;
				key_flag <= 1'b1;  //有键按下
			end
			else
				state <= 0;
        end
 
    endcase
 
end
 
 
 
always @(clock or col_reg or row_reg)
begin
	if(key_flag == 1'b1)
    begin
        key_out_flag <= 1;
        case ({col_reg,row_reg})
            8'b1110_1110:key_value <= 4'b0001  ;
            8'b1101_1110:key_value <= 4'b0010;
            8'b1011_1110:key_value <= 4'b0110;
            8'b0111_1110:key_value <= 4'b0000;
//            8'b1110_1101:key_value <= 4;
//            8'b1101_1101:key_value <= 5;
//            8'b1011_1101:key_value <= 6;
//            8'b0111_1101:key_value <= 7;
//            8'b1110_1011:key_value <= 8;
//            8'b1101_1011:key_value <= 9;
//            8'b1011_1011:key_value <= 10;
//            8'b0111_1011:key_value <= 11;
//            8'b1110_0111:key_value <= 12;
//            8'b1101_0111:key_value <= 13;
//            8'b1011_0111:key_value <= 14;
//            8'b0111_0111:key_value <= 15;
             default: key_value <= 4'b0000;
       endcase
    end
    else
        key_out_flag <= 0;
end
 
 endmodule

speed：


module speed
(
    input		    clock,
    input          reset,
    input          pulse_from_motor,
    output [19:0]  speed_value
);
 
 
reg [32:0] cnt;
always @(posedge clock or posedge reset)
begin
	if (reset)
		cnt <= 0;
//	else if(cnt == 33'd6000000000)
	else if(cnt == 33'd300000000)
		cnt <= 0;
    else
    	cnt <= cnt + 1'b1;
end
 
wire start_flag;
wire end_flag;
assign start_flag = (cnt <= 33'd5);
//assign end_flag = (cnt == 33'd6000000000);
assign end_flag = (cnt == 33'd300000000);
 
reg [1:0] pulse_from_motor_sync;
always @(posedge clock or posedge reset)
begin
	if (reset)
		pulse_from_motor_sync <= 2'b00;
    else
    	pulse_from_motor_sync <= {pulse_from_motor_sync[0],pulse_from_motor};
end
 
wire pulse_from_motor_pos;
assign pulse_from_motor_pos = (pulse_from_motor_sync == 2'b01);
 
wire [23 : 0] Q;
c_counter_binary_0 c_counter_binary_0_0
(
  .CLK(clock),    // input wire CLK
  .CE(pulse_from_motor_pos),      // input wire CE
  .SCLR(start_flag),  // input wire SCLR
  .Q(Q)        // output wire [23 : 0] Q
);
 
reg [23:0] pulse_cnt;
always @(posedge clock or posedge reset)
begin
	if (reset)
		pulse_cnt <= 0;
	else if(end_flag)
		pulse_cnt <= Q;
    else
    	;
end
 
wire [15:0] turns_num;
//assign turns_num = pulse_cnt / 20;
assign turns_num = pulse_cnt[15:0];
 
assign speed_value [3:0] = turns_num % 10;
assign speed_value [7:4] = turns_num % 100 / 10;
assign speed_value [11:8] = turns_num % 1000 / 100;
assign speed_value [15:12] = turns_num % 10000 / 1000;
assign speed_value [19:16] = turns_num % 100000 / 10000;
 
endmodule

dht：


 
module dht11_drive
(
	input              clock,
    input              reset,
    inout              dht11,
    output reg [31:0]  dht11_value,
    output     [7:0]   dht11_value_sd,
    output     [7:0]   dht11_value_wd
);                                      
 
 
parameter  POWER_ON_NUM     = 1000_000; //上电延时1s
parameter  st_power_on_wait = 3'd0;     //上电延时等待
parameter  st_low_20ms      = 3'd1;     //主机发送20ms低电平
parameter  st_high_13us     = 3'd2;     //主机释放总线13us
parameter  st_rec_low_83us  = 3'd3;     //接收83us低电平响应
parameter  st_rec_high_87us = 3'd4;     //等待87us高电平（准备接收数据）
parameter  st_rec_data      = 3'd5;     //接收40位数据
parameter  st_delay         = 3'd6;     //延时等待,延时完成后重新操作DHT11
 
 
reg    [2:0]   cur_state;	//当前状态
reg    [2:0]   next_state;	//下一个状态
 
reg    [5:0]   clock_cnt;	//分频计数器
reg            clock_1M;	//1MHz时钟
reg    [20:0]  us_cnt;	//1微秒计数器
reg            us_cnt_clr;	//1微秒计数器清零信号
reg    [39:0]  data_temp;	//缓存接收到的数据
reg            step;	//数据采集状态
reg    [5:0]   data_cnt;	//接收数据用计数器
reg            dht11_buffer;	//DHT11输出信号
 
reg [1:0]  clock_1M_sync;
wire       clock_1M_pos;
wire       clock_1M_neg;
 
reg [1:0]  dht11_sync;
wire       dht11_pos;
wire       dht11_neg;
 
 
//1MHz分频时钟
always @ (posedge clock or posedge reset)
begin
    if (reset)
        clock_cnt <= 6'd0;
    else if (clock_cnt == 6'd49)
        clock_cnt <= 6'd0;
    else
        clock_cnt <= clock_cnt + 1'b1;
end
 
always @ (posedge clock or posedge reset)
begin
    if (reset)
        clock_1M  <= 1'b0;
    else if (clock_cnt == 6'd49)
        clock_1M  <= ~ clock_1M;
    else
        clock_1M  <=  clock_1M;
end
 
 
always @ (posedge clock or posedge reset)
begin
    if (reset)
        clock_1M_sync <= 2'b00;
    else
        clock_1M_sync <= {clock_1M_sync[0],clock_1M};
end
 
assign clock_1M_pos = (clock_1M_sync == 2'b01);
assign clock_1M_neg = (clock_1M_sync == 2'b10);
 
 
always @ (posedge clock or posedge reset)
begin
    if (reset)
        dht11_sync <= 2'b11;
    else if(clock_1M_pos)
        dht11_sync <= {dht11_sync[0],dht11};
end
 
assign dht11_pos = (dht11_sync == 2'b01);
assign dht11_neg = (dht11_sync == 2'b10);
 
 
//us计数器
always @ (posedge clock or posedge reset)
begin
    if (reset)
        us_cnt <= 21'd0;
    else if (us_cnt_clr)
        us_cnt <= 21'd0;
    else if(clock_1M_pos)
        us_cnt <= us_cnt + 1'b1;
end 
 
//状态跳转
always @ (posedge clock or posedge reset)
begin
    if (reset)
        cur_state <= st_power_on_wait;
    else
        cur_state <= next_state;
end 
 
//状态机读取DHT11数据
always @ (posedge clock or posedge reset)
begin
    if(reset)
	begin
        next_state   <= st_power_on_wait;
        data_temp    <= 40'd0;
        step         <= 1'b0; 
        us_cnt_clr   <= 1'b0;
        data_cnt     <= 6'd0;
        dht11_buffer <= 1'bz;
    end 
    else if(clock_1M_pos)
	begin
        case (cur_state)
            st_power_on_wait :
			begin
                if(us_cnt < POWER_ON_NUM)
				begin
                    dht11_buffer <= 1'bz;
                    us_cnt_clr   <= 1'b0;
                end
                else
				begin
                    next_state   <= st_low_20ms;
                    us_cnt_clr   <= 1'b1;
                end
            end
			
            st_low_20ms :
			begin
                if(us_cnt < 20000)
				begin
                    dht11_buffer <= 1'b0;
                    us_cnt_clr   <= 1'b0;
                end
                else
				begin
                    dht11_buffer <= 1'bz;
                    next_state   <= st_high_13us;
                    us_cnt_clr   <= 1'b1;
                end
            end 
 
            st_high_13us :
			begin
                if (us_cnt < 20)
				begin
                    us_cnt_clr   <= 1'b0;
                    if(dht11_neg)
					begin
                        next_state <= st_rec_low_83us;
                        us_cnt_clr <= 1'b1; 
                    end
                end
                else
                    next_state <= st_delay;
            end 
 
            st_rec_low_83us :
			begin
                if(dht11_pos)
                    next_state <= st_rec_high_87us;
            end 
 
            st_rec_high_87us :
			begin
                if(dht11_neg)
				begin
                    next_state <= st_rec_data; 
                    us_cnt_clr <= 1'b1;
                end
                else
				begin
                    data_cnt  <= 6'd0;
                    data_temp <= 40'd0;
                    step  <= 1'b0;
                end
            end 
 
            st_rec_data :
			begin
                case(step)
                    0 :
					begin
                        if(dht11_pos)
						begin 
                            step   <= 1'b1;
                            us_cnt_clr <= 1'b1;
                        end            
                        else
                            us_cnt_clr <= 1'b0;
                    end
                    1 :
					begin
                        if(dht11_neg)
						begin 
                            data_cnt <= data_cnt + 1'b1;
                            if(us_cnt < 60)
                                data_temp <= {data_temp[38:0],1'b0};
                            else                
                                data_temp <= {data_temp[38:0],1'b1};
								
                            step <= 1'b0;
                            us_cnt_clr <= 1'b1;
                        end 
                        else
                            us_cnt_clr <= 1'b0;
                    end
                endcase
                
                if(data_cnt == 40)
				begin
                    next_state <= st_delay;
                    if(data_temp[7:0] == data_temp[39:32] + data_temp[31:24] + data_temp[23:16] + data_temp[15:8])
                        dht11_value <= data_temp[39:8];  
                end
            end 
 
            st_delay :
			begin
                if(us_cnt < 2000_000)
                    us_cnt_clr <= 1'b0;
                else
				begin
                    next_state <= st_low_20ms;
                    us_cnt_clr <= 1'b1;
                end
            end
            default : ;
        endcase
    end 
end
 
assign dht11 = dht11_buffer;
 
assign dht11_value_sd[3:0] = dht11_value[31:24] % 10;
assign dht11_value_sd[7:4] = dht11_value[31:24] / 10;
 
assign dht11_value_wd[3:0] = dht11_value[15:8] % 10;
assign dht11_value_wd[7:4] = dht11_value[15:8] / 10;
 
endmodule

Judge：（电机驱动，这里用的是步进电机）


 
module Judge(
input clk,
input rst,
input key_out_flag,
input [7:0]t_data,//温度
input [7:0]s_data,//湿度
input A,//清零
input B,//手动模式
input C,//速度变档
input D,//恢复到自动模式
output [3:0] motor_en
    );
reg [3:0] motor_en_reg;
reg [31:0] cnt;
reg [1:0] s;
reg [1:0] state_speed;
always@(posedge key_out_flag)
begin
if(rst||A)
begin
s<=0;
end
else
begin
if(C)
s<=s+1;
end
end
 
always@(posedge clk)
begin
if(rst)
begin
state_speed<=cnt[21:20];
end
else
begin
case(s)
2'b00:
state_speed<=cnt[21:20];
2'b01:
state_speed<=cnt[20:19];
2'b10:
state_speed<=cnt[19:18];
2'b11:
state_speed<=cnt[18:17];//由于频率过快，该状态会强制暂停
default:;
endcase
end
end
 
 
always@(posedge clk)
begin
if(rst||A)
begin
motor_en_reg<=0;
end
else if(B)//手动模式
begin
	case (state_speed)
	   2'b00 : 
	       motor_en_reg <= 4'b0001;
	   2'b01 : 
	       motor_en_reg <= 4'b0010;
	   2'b10 : 
	       motor_en_reg <= 4'b0100;
	   2'b11 : 
	       motor_en_reg <= 4'b1000;
	 endcase     
end
else if(s_data[7:4]<4'd3)//湿度小于三十度
begin
	case (cnt[19:18])
	   2'b00 : 
	       motor_en_reg <= 4'b0001;
	   2'b01 : 
	       motor_en_reg <= 4'b0010;
	   2'b10 : 
	       motor_en_reg <= 4'b0100;
	   2'b11 : 
	       motor_en_reg <= 4'b1000;
	 endcase     
end
else 
begin
	case (cnt[21:20])
	   2'b00 : 
	       motor_en_reg <= 4'b0001;
	   2'b01 : 
	       motor_en_reg <= 4'b0010;
	   2'b10 : 
	       motor_en_reg <= 4'b0100;
	   2'b11 : 
	       motor_en_reg <= 4'b1000;
	 endcase     
end
end
 
 
always @(posedge clk )
begin
	if (rst)
        cnt <= 0;
    else
        cnt <= cnt + 1'b1;
end
assign motor_en = motor_en_reg;
endmodule

实验效果：

本文内容由网友自发贡献，转载请注明出处：【wpsshop博客】