基于FPGA的按键消抖实验Verilog逻辑源码Quartus工程文件+文档说明，程序实现按键按下后数字加 1，并在数码管上显示出来，FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。 module key_debounce( input clk, input rst_n, input key1, output [5:0] seg_sel, output [7:0] seg_data ); wire button_negedge; //Key falling edge ax_debounce ax_debounce_m0 ( .clk (clk), .rst (~rst_n), .button_in (key1), .button_posedge (), .button_negedge (button_negedge), .button_out () ); wire[3:0] count; wire t0; count_m10 count10_m0( .clk (clk), .rst_n (rst_n), .en (button_negedge), .clr (1'b0), .data (count), .t (t0) ); wire[3:0] count1; wire t1; count_m10 count10_m1( .clk (clk), .rst_n (rst_n), .en (t0), .clr (1'b0), .data (count1), .t (t1) ); //Count decoding wire[6:0] seg_data_0; seg_decoder seg_decoder_m0( .bin_data (count), .seg_data (seg_data_0) ); wire[6:0] seg_data_1; seg_decoder seg_decoder_m1( .bin_data (count1), .seg_data (seg_data_1) ); seg_scan seg_scan_m0( .clk (clk), .rst_n (rst_n), .seg_sel (seg_sel), .seg_data (seg_data), .seg_data_0 ({1'b1,7'b1111_111}), .seg_data_1 ({1'b1,7'b1111_111}), .seg_data_2 ({1'b1,7'b1111_111}), .seg_data_3 ({1'b1,7'b1111_111}), .seg_data_4 ({1'b1,seg_data_1}), .seg_data_5 ({1'b1,seg_data_0}) ); endmodule

FPGA设计控制蜂鸣器播放音乐实验的Verilog逻辑源码Quartus工程文件+文档说明，根据简谱不同简谱名频率让蜂鸣器发出不一样的响声，FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。 module music_top ( input clk, input rst_n, input key1, output reg buzzer ) ; parameter CLK_FRE = 50 ; parameter music_len = 32'd78 ; wire [19:0] cycle ; reg [31:0] play_cnt ; reg [31:0] music_cnt ; reg [19:0] hz_cnt ; wire [4:0] hz_sel ; wire [7:0] rom_hz_data ; wire [7:0] rom_time_data ; reg [31:0] music_time ; wire button_negedge ; parameter IDLE = 2'd0 ; parameter PLAY = 2'd1 ; parameter PLAY_WAIT = 2'd2 ; parameter PLAY_END = 2'd3 ; reg [1:0] state ; reg [1:0] next_state ; always @(posedge clk or negedge rst_n) begin if (~rst_n) state <= IDLE ; else state <= next_state ; end always @(*) begin case(state) IDLE : begin if (button_negedge) next_state <= PLAY ; else next_state <= IDLE ; end PLAY : begin if (play_cnt == music_time) next_state <= PLAY_WAIT ; else next_state <= PLAY ; end PLAY_WAIT : begin if (music_cnt == music_len - 1) next_state <= PLAY_END ; else next_state <= PLAY ; end PLAY_END : next_state <= IDLE ; default : next_state <= IDLE ; endcase end ax_debounce ax_debounce_a0 ( .clk (clk), .rst (~rst_n), .button_in (key1), .button_posedge (), .button_negedge (button_negedge), .button_out () ); //play counter always @(posedge clk or negedge rst_n) begin if (~rst_n) music_time <= 32'hffff_ffff ; else music_time <= rom_time_data*(CLK_FRE*1000000/8) ; end //counter in every step, maximum value is cycle always @(posedge clk or negedge rst_n) begin if (~rst_n) hz_cnt <= 20'd0 ; else if (state == PLAY || state == PLAY_WAIT) begin if (hz_cnt == cycle - 1) hz_cnt <= 20'd0 ; else hz_cnt <=

FPGA片内ROM读写测试Verilog逻辑源码Quartus工程文件+文档说明，ALTERA 在 Quartus 软件里为我们已经提供了 ROM 的 IP 核, 我们只需通过 IP 核例化一个 ROM， 根据 ROM 的读时序来读取 ROM 中存储的数据。实验中会通过 Quartus 集成的在线逻辑分析仪Signaltap，我们可以观察 ROM 的读时序和从 ROM 中读取的数据，FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。 timescale 1ns / 1ps ////////////////////////////////////////////////////////////////////////////////// module rom_test( input clk, //50MHz时钟 input rst_n //复位信号，低电平有效 ); //----------------------------------------------------------- reg[4:0] rom_addr; //ROM输入地址 wire[7:0] rom_data; //ROM的数据 //产生ROM地址读取数据测试 always @(posedge clk or negedge rst_n) if(rst_n==1'b0) rom_addr <= 10'd0; else rom_addr <= rom_addr+1'b1; //----------------------------------------------------------- //实例化ROM rom_ip rom_ip_inst ( .clock (clk ), // input clock .address (rom_addr ), // input [4 : 0] address .q (rom_data ) // output [7 : 0] q ); endmodule

FPGA片内RAM读写测试Verilog逻辑源码Quartus工程文件+文档说明，使用 FPGA 内部的 RAM 以及程序对该 RAM 的数据读写操作，FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。 `timescale 1ns / 1ps ////////////////////////////////////////////////////////////////////////////////// module ram_test( input clk, //50MHz时钟 input rst_n //复位信号，低电平有效 ); //----------------------------------------------------------- reg[8:0] w_addr; //RAM写地址 reg[15:0] w_data; //RAM写数据 reg wea; //RAM PORTA 使能 reg[8:0] r_addr; //RAM读地址 wire[15:0] r_data; //RAM读数据 //产生RAM地址读取数据测试 always @(posedge clk or negedge rst_n) if(rst_n==1'b0) r_addr <= 9'd0; else r_addr <= r_addr+1'b1; ///产生RAM写入的数据 always@(posedge clk or negedge rst_n) begin if(rst_n==1'b0) begin wea <= 1'b0; w_addr <= 9'd0; w_data <= 16'd0; end else begin if(w_addr==511) begin //ram写入完毕 wea <= 1'b0; end else begin wea<=1'b1; //ram写使能 w_addr <= w_addr + 1'b1; w_data <= w_data + 1'b1; end end end //----------------------------------------------------------- //实例化RAM ram_ip ram_ip_inst ( .wrclock (clk ), // input wrclock .wren (wea ), // input [0 : 0] wren .wraddress (w_addr ), // input [8 : 0] wraddress .data (w_data ), // input [15 : 0] data .rdclock (clk ), // input rdclock .rdaddress (r_addr ), // input [8 : 0] rdaddress .q (r_data ) // output [15 : 0] q ); endmodule

FPGA片内FIFO读写测试Verilog逻辑源码Quartus工程文件+文档说明，使用 FPGA 内部的 FIFO 以及程序对该 FIFO 的数据读写操作。FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。 timescale 1ns / 1ps ////////////////////////////////////////////////////////////////////////////////// module fifo_test( input clk, //50MHz时钟 input rst_n //复位信号，低电平有效 ); //----------------------------------------------------------- localparam W_IDLE = 1; localparam W_FIFO = 2; localparam R_IDLE = 1; localparam R_FIFO = 2; reg[2:0] write_state; reg[2:0] next_write_state; reg[2:0] read_state; reg[2:0] next_read_state; reg[15:0] w_data; //FIFO写数据 wire wr_en; //FIFO写使能 wire rd_en; //FIFO读使能 wire[15:0] r_data; //FIFO读数据 wire full; //FIFO满信号 wire empty; //FIFO空信号 wire[8:0] rd_data_count; wire[8:0] wr_data_count; ///产生FIFO写入的数据 always@(posedge clk or negedge rst_n) begin if(rst_n == 1'b0) write_state <= W_IDLE; else write_state <= next_write_state; end always@(*) begin case(write_state) W_IDLE: if(empty == 1'b1) //FIFO空， 开始写FIFO next_write_state <= W_FIFO; else next_write_state <= W_IDLE; W_FIFO: if(full == 1'b1) //FIFO满 next_write_state <= W_IDLE; else next_write_state <= W_FIFO; default: next_write_state <= W_IDLE; endcase end assign wr_en = (next_write_state == W_FIFO) ? 1'b1 : 1'b0; always@(posedge clk or negedge rst_n) begin if(rst_n == 1'b0) w_data <= 16'd0; else if (wr_en == 1'b1) w_data <= w_data + 1'b1; else w_data <= 16'd0; end ///产生FIFO读的数据 always@(posedge clk or negedge rst_n) begin if(rst_n == 1'b0) read_state <= R_IDLE; else read_state <= next_read_state; end always@(*) begin case(read_state) R_IDLE: if(full == 1'b1) //FIFO满, 开始读FIFO next_read_state <= R_FIFO; else next_read_state <=

d卡实验Verilog逻辑源码Quartus工程文件+文档说明,FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。 module sd_card_test( input clk, input rst_n, input key1, output SD_nCS, output SD_DCLK, output SD_MOSI, input SD_MISO, output [5:0] seg_sel, output [7:0] seg_data ); parameter S_IDLE = 0; parameter S_READ = 1; parameter S_WRITE = 2; parameter S_END = 3; reg[3:0] state; wire sd_init_done; reg sd_sec_read; wire[31:0] sd_sec_read_addr; wire[7:0] sd_sec_read_data; wire sd_sec_read_data_valid; wire sd_sec_read_end; reg sd_sec_write; wire[31:0] sd_sec_write_addr; reg [7:0] sd_sec_write_data; wire sd_sec_write_data_req; wire sd_sec_write_end; reg[9:0] wr_cnt; reg[9:0] rd_cnt; wire button_negedge; reg[7:0] read_data; ax_debounce ax_debounce_m0 ( .clk (clk), .rst (~rst_n), .button_in (key1), .button_posedge (), .button_negedge (button_negedge), .button_out () ); wire[6:0] seg_data_0; seg_decoder seg_decoder_m0( .bin_data (read_data[3:0]), .seg_data (seg_data_0) ); wire[6:0] seg_data_1; seg_decoder seg_decoder_m1( .bin_data (read_data[7:4]), .seg_data (seg_data_1) ); seg_scan seg_scan_m0( .clk (clk), .rst_n (rst_n), .seg_sel (seg_sel), .seg_data (seg_data), .seg_data_0 ({1'b1,7'b1111_111}), .seg_data_1 ({1'b1,7'b1111_111}), .seg_data_2 ({1'b1,7'b1111_111}), .seg_data_3 ({1'b1,7'b1111_111}), .seg_data_4 ({1'b1,seg_data_1}), .seg_data_5 ({sd_init_done,seg_data_0}) ); always@(posedge clk or negedge rst_n) begin if(rst_n == 1'b0) wr_cnt <= 10'd0; else if(state == S_WRITE) begin if(sd_sec_write_data_req == 1'b1) wr_cnt <= wr_cnt + 10'

基于FPGA设计的vga显示测试实验Verilog逻辑源码Quartus工程文件+文档说明，FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。 module top( input clk, input rst_n, //vga output output vga_out_hs, //vga horizontal synchronization output vga_out_vs, //vga vertical synchronization output[4:0] vga_out_r, //vga red output[5:0] vga_out_g, //vga green output[4:0] vga_out_b //vga blue ); wire video_clk; wire video_hs; wire video_vs; wire video_de; wire[7:0] video_r; wire[7:0] video_g; wire[7:0] video_b; assign vga_out_hs = video_hs; assign vga_out_vs = video_vs; assign vga_out_r = video_r[7:3]; //discard low bit data assign vga_out_g = video_g[7:2]; //discard low bit data assign vga_out_b = video_b[7:3]; //discard low bit data //generate video pixel clock video_pll video_pll_m0( .inclk0(clk), .c0(video_clk)); color_bar color_bar_m0( .clk(video_clk), .rst(~rst_n), .hs(video_hs), .vs(video_vs), .de(video_de), .rgb_r(video_r), .rgb_g(video_g), .rgb_b(video_b) ); endmodule

基于FPGA设计的sdram读写测试实验Verilog逻辑源码Quartus工程文件+文档说明，DRAM选用海力士公司的 HY57V2562 型号,容量为的 256Mbit,采用了 54 引脚的 TSOP 封装, 数据宽度都为 16 位, 工作电压为 3.3V,并丏采用同步接口方式所有的信号都是时钟信号。FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。 timescale 1ps/1ps module top ( input clk, input rst_n, output[1:0] led, output sdram_clk, //sdram clock output sdram_cke, //sdram clock enable output sdram_cs_n, //sdram chip select output sdram_we_n, //sdram write enable output sdram_cas_n, //sdram column address strobe output sdram_ras_n, //sdram row address strobe output[1:0] sdram_dqm, //sdram data enable output[1:0] sdram_ba, //sdram bank address output[12:0] sdram_addr, //sdram address inout[15:0] sdram_dq //sdram data ); parameter MEM_DATA_BITS = 16 ; //external memory user interface data width parameter ADDR_BITS = 24 ; //external memory user interface address width parameter BUSRT_BITS = 10 ; //external memory user interface burst width parameter BURST_SIZE = 128 ; //burst size wire wr_burst_data_req; // from external memory controller,write data request ,before data 1 clock wire wr_burst_finish; // from external memory controller,burst write finish wire rd_burst_finish; // from external memory controller,burst read finish wire rd_burst_req; // to external memory controller,send out a burst read request wire wr_burst_req; // to external memory controller,send out a burst write request wire[BUSRT_BITS - 1:0] rd_burst_len; // to e

基于FGGA设计的音频录音与播放实验例程Verilog逻辑源码Quartus工程文件+文档说明,音频编解码芯片选用WOLFSON 公司的 WM8731 芯，FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。 `timescale 1ps/1ps module top ( input clk, //clock input input rst_n, //reset input input key, //record play button input wm8731_bclk, //audio bit clock input wm8731_daclrc, //DAC sample rate left right clock output wm8731_dacdat, //DAC audio data output input wm8731_adclrc, //ADC sample rate left right clock input wm8731_adcdat, //ADC audio data input inout wm8731_scl, //I2C clock inout wm8731_sda, //I2C data output sdram_clk, //sdram clock output sdram_cke, //sdram clock enable output sdram_cs_n, //sdram chip select output sdram_we_n, //sdram write enable output sdram_cas_n, //sdram column address strobe output sdram_ras_n, //sdram row address strobe output[1:0] sdram_dqm, //sdram data enable output[1:0] sdram_ba, //sdram bank address output[12:0] sdram_addr, //sdram address inout[15:0] sdram_dq //sdram data ); parameter MEM_DATA_BITS = 16 ; //external memory user interface data width parameter ADDR_BITS = 24 ; //external memory user interface address width parameter BUSRT_BITS = 10 ; //external memory user interface burst width wire wr_burst_data_req; wire

基于FPGA设计的SD卡音乐播放Verilog逻辑源码Quartus工程文件+文档说明，音频编解码芯片选用WOLFSON 公司的 WM8731 芯，FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。 module top( input clk, input rst_n, input key1, input wm8731_bclk, //audio bit clock input wm8731_daclrc, //DAC sample rate left right clock output wm8731_dacdat, //DAC audio data output input wm8731_adclrc, //ADC sample rate left right clock input wm8731_adcdat, //ADC audio data input inout wm8731_scl, //I2C clock inout wm8731_sda, //I2C data output sd_ncs, //SD card chip select (SPI mode) output sd_dclk, //SD card clock output sd_mosi, //SD card controller data output input sd_miso, //SD card controller data input output [5:0] seg_sel, output [7:0] seg_data ); wire[9:0] lut_index; wire[31:0] lut_data; wire[3:0] state_code; wire[6:0] seg_data_0; //I2C master controller i2c_config i2c_config_m0( .rst (~rst_n ), .clk (clk ), .clk_div_cnt (16'd99 ), .i2c_addr_2byte (1'b0 ), .lut_index (lut_index ), .lut_dev_addr (lut_data[31:24] ), .lut_reg_addr (lut_data[23:8] ), .lut_reg_data (lut_data[7:0] ), .error ( ), .done ( ), .i2c_scl