顶层测试代码
module top(
input i_clk ,
input i_rstn ,
input [15:0] i_ch_din ,
input i_busy ,
output o_convst ,
output [1:0] o_hw_rngsel ,
output o_ser1par0 ,
output o_reset_n ,
output [2:0] o_chsel ,
output o_burst ,
output o_cs ,
output o_rd
);
/* wire w_clk200m ;
wire w_lock200m ;
pll200m
pll200m (
.clk_out1(w_clk200m),
.resetn(i_rstn),
.locked(w_lock200m),
.clk_in1(i_clk)
); */
wire w_clk125m ;
wire w_lock125m ;
pll125m
pll125m (
.clk_out1(w_clk125m),
.resetn(i_rstn),
.locked(w_lock125m),
.clk_in1(i_clk)
);
localparam CLK_PERIOD = 8;
localparam CH_SELECT = 0;
wire w_clk_used ;
wire w_rst_used ;
assign w_clk_used = w_clk125m;
assign w_rst_used = ~w_lock125m;
wire [15:0] w_cha_dout0 ;
wire [15:0] w_chb_dout0 ;
wire [15:0] w_cha_dout7 ;
wire [15:0] w_chb_dout7 ;
wire w_cha_vld ;
wire w_chb_vld ;
reg r_cha_vld ;
reg r_chb_vld ;
reg [15:0] r_cha_data ;
reg [15:0] r_chb_data ;
always@(posedge w_clk_used or posedge w_rst_used) begin
if(w_rst_used) begin
r_cha_vld <= 'd0;
r_cha_data <= 'd0;
end
else if(w_cha_vld) begin
r_cha_vld <= 'd1;
r_cha_data <= w_cha_dout0;
end
else begin
r_cha_vld <= 'd0;
r_cha_data <= r_cha_data;
end
end
always@(posedge w_clk_used or posedge w_rst_used) begin
if(w_rst_used) begin
r_chb_vld <= 'd0;
r_chb_data <= 'd0;
end
else if(w_chb_vld) begin
r_chb_vld <= 'd1;
r_chb_data <= w_chb_dout0;
end
else begin
r_chb_vld <= 'd0;
r_chb_data <= r_chb_data;
end
end
reg [2:0] r_chsel ;
reg r_chsel_vld ;
reg r_chsel_req ;
wire w_chsel_req ;
always@(posedge w_clk_used or posedge w_rst_used) begin
if(w_rst_used)
r_chsel_req <= 'd0;
else
r_chsel_req <= w_chsel_req;
end
always@(posedge w_clk_used or posedge w_rst_used) begin
if(w_rst_used) begin
r_chsel <= 'd0;
r_chsel_vld <= 'd0;
end
else if({r_chsel_req, w_chsel_req} == 2'b01) begin
r_chsel <= r_chsel + 1;
r_chsel_vld <= 'd1;
end
else begin
r_chsel <= r_chsel;
r_chsel_vld <= 'd0;
end
end
ad7616_driver#(
.CLK_PERIOD (CLK_PERIOD ))
ad7616_driver_U(
.i_clk (w_clk_used ),
.i_rst (w_rst_used ),
.i_en (1'b1 ),
.i_chsel (CH_SELECT ),
.i_chsel_vld (r_chsel_vld),
.i_ch_din (i_ch_din ),
.i_busy (i_busy ),
.o_cha_dout0 (w_cha_dout0),
.o_cha_dout1 (),
.o_cha_dout2 (),
.o_cha_dout3 (),
.o_cha_dout4 (),
.o_cha_dout5 (),
.o_cha_dout6 (),
.o_cha_dout7 (w_cha_dout7),
.o_chb_dout0 (w_chb_dout0),
.o_chb_dout1 (),
.o_chb_dout2 (),
.o_chb_dout3 (),
.o_chb_dout4 (),
.o_chb_dout5 (),
.o_chb_dout6 (),
.o_chb_dout7 (w_chb_dout7),
.o_cha_vld (w_cha_vld ),
.o_chb_vld (w_chb_vld ),
.o_convst (o_convst ),
.o_hw_rngsel (o_hw_rngsel),
.o_os (),
.o_ser1par0 (o_ser1par0 ),
.o_reset_n (o_reset_n ),
.o_chsel (o_chsel ),
.o_burst (o_burst ),
.o_seqen (),
.o_cs (o_cs ),
.o_rd (o_rd ),
.o_chsel_req (w_chsel_req)
);
ila_top your_instance_name (
.clk(w_clk_used), // input wire clk
.probe0(r_cha_data), // input wire [15:0] probe0
.probe1(r_chb_data), // input wire [15:0] probe1
.probe2(w_cha_vld), // input wire [0:0] probe2
.probe3(w_chb_vld) // input wire [0:0] probe3
);
endmodule
驱动代码
(*max_fanout=20, keep="true"*)
module ad7616_driver#(
parameter CLK_PERIOD = 20
)(
input i_clk ,
input i_rst ,
input i_en ,
input [2:0] i_chsel ,
input i_chsel_vld ,
input [15:0] i_ch_din ,
input i_busy ,
output reg [15:0] o_cha_dout0 ,
output reg [15:0] o_cha_dout1 ,
output reg [15:0] o_cha_dout2 ,
output reg [15:0] o_cha_dout3 ,
output reg [15:0] o_cha_dout4 ,
output reg [15:0] o_cha_dout5 ,
output reg [15:0] o_cha_dout6 ,
output reg [15:0] o_cha_dout7 ,
output reg [15:0] o_chb_dout0 ,
output reg [15:0] o_chb_dout1 ,
output reg [15:0] o_chb_dout2 ,
output reg [15:0] o_chb_dout3 ,
output reg [15:0] o_chb_dout4 ,
output reg [15:0] o_chb_dout5 ,
output reg [15:0] o_chb_dout6 ,
output reg [15:0] o_chb_dout7 ,
output reg o_cha_vld ,
output reg o_chb_vld ,
output reg o_convst ,
output reg [1:0] o_hw_rngsel ,
output reg [2:0] o_os ,
output reg o_ser1par0 ,
output reg o_reset_n ,
output reg [2:0] o_chsel ,
output reg o_burst ,
output reg o_seqen ,
output reg o_cs ,
output reg o_rd ,
output reg o_chsel_req
);
/*
序列器开启后每拉高一次convst，等待busy下降后就可以通过cs↓rd↓rd↑cs↑反复循环，从第一个通道顺序读取最后一个通道，然后再次拉高convst进行下一轮读取
序列器关闭后可以更加灵活的控制单通道的读取，每次读取一个通道前都需要配置chsel，然后拉高convst，等待busy下降后通过cs↓rd↓rd↑cs↑读取单个通道数据，
如需切换通道则再次配置chsel hw_rngsel1 hw_rngsel0 模拟输入范围
0 1 ±2.5V
1 0 ±5V
1 1 ±10V
*/
/*
通道选择输入引脚 |模拟输入通道
CHSEL2 |CHSEL1 |CHSEL0 |
------------------------------------------
0 |0 |0 |V0A,V0B
0 |0 |1 |V1A,V1B
0 |1 |0 |V2A,V2B
0 |1 |1 |V3A,V3B
1 |0 |0 |V4A,V4B
1 |0 |1 |V5A,V5B
1 |1 |0 |V6A,V6B
1 |1 |1 |V7A,V7B
*/
initial begin
o_os = 3'b000;
o_ser1par0 = 1'b0;
o_seqen = 1'b0;//序列器开启或关闭
o_burst = 1'b0;//硬件模式下burst不用配置
o_hw_rngsel = 2'b01;
end
localparam TIME_RESET_L = 1_200 ;//1.2μs
localparam TIME_RESET_H = 15_000_000 ;//15ms
localparam TIME_CONVST_H = 50 ;//50ns
localparam TIME_CH_SETUP = 50 ;//50ns
localparam TIME_CH_HOLD = 20 ;//20ns
localparam TIME_RD_LOW = 30 ;//30ns
localparam TIME_RD_HIGH = 10 ;//30ns增强稳定性
localparam TIME_CS_SETUP = 20 ;//20ns
localparam TIME_QUIET = 50 ;//50ns
localparam TIME_RD_SETUP = 10 ;//10ns
localparam TIME_RD_HOLD = 10 ;//10ns
localparam TIME_DOUT_SETUP = 20 ;//20ns
reg [13:0] r_cstate ;
reg [13:0] r_nstate ;
localparam S_IDLE = 14'b00_0000_0000_0001 ,
S_RESET = 14'b00_0000_0000_0010 ,
S_CHSEL = 14'b00_0000_0000_0100 ,
S_CONVST = 14'b00_0000_0000_1000 ,
S_BUSY = 14'b00_0000_0001_0000 ,
S_CS_SETUP = 14'b00_0000_0010_0000 ,
S_RD_SETUP = 14'b00_0000_0100_0000 ,
S_SETUP_CHA = 14'b00_0000_1000_0000 ,
S_DOUT_CHA = 14'b00_0001_0000_0000 ,
S_RD_HIGH = 14'b00_0010_0000_0000 ,
S_SETUP_CHB = 14'b00_0100_0000_0000 ,
S_DOUT_CHB = 14'b00_1000_0000_0000 ,
S_RD_HOLD = 14'b01_0000_0000_0000 ,
S_QUIET = 14'b10_0000_0000_0000 ;
// 复位 start
reg [31:0] r_rst_cnt ;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_rst_cnt <= 'd0;
else if(r_cstate == S_RESET)
r_rst_cnt <= r_rst_cnt + 'd1;
else
r_rst_cnt <= r_rst_cnt;
end
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
o_reset_n <= 'd1;
else if(r_rst_cnt < (TIME_RESET_L + TIME_RESET_H) / CLK_PERIOD)
o_reset_n <= 'd0;
else
o_reset_n <= 'd1;
end
// 复位 end
// 采样通道选择 start
reg [7:0] r_chsel_cnt ;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_chsel_cnt <= 'd0;
else if(r_cstate == S_CHSEL)
r_chsel_cnt <= r_chsel_cnt + 1;
else
r_chsel_cnt <= 'd0;
end
reg [2:0] r_chsel;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_chsel <= 'd0;
else if(o_chsel_req & i_chsel_vld)
r_chsel <= i_chsel;
else
r_chsel <= r_chsel;
end
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
o_chsel <= 'd0;//默认第一对输入引脚
else if(r_nstate == S_CHSEL)//硬件模式每进行一对通道采集就切换一次
o_chsel <= r_chsel;
else
o_chsel <= o_chsel;
end
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
o_chsel_req <= 'd1;
else if(o_chsel_req & i_chsel_vld)
o_chsel_req <= 'd0;
else if(r_nstate == S_QUIET & r_cstate != r_nstate)
o_chsel_req <= 'd1;
else
o_chsel_req <= o_chsel_req;
end
// 采样通道选择 end
// 模数转换 start
reg [7:0] r_cvst_cnt ;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_cvst_cnt <= 'd0;
else if(r_cstate == S_CONVST)
r_cvst_cnt <= r_cvst_cnt + 1;
else
r_cvst_cnt <= 'd0;
end
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
o_convst <= 'd0;
else if(r_cstate == S_CONVST)
o_convst <= 'd1;
else
o_convst <= 'd0;
end
// 模数转换 end
// 转换完成 start
reg [1:0] r_busy_shreg ;
always@(posedge i_clk) begin
r_busy_shreg[0] <= i_busy;
r_busy_shreg[1] <= r_busy_shreg[0];
end
wire w_busy_nedge ;
assign w_busy_nedge = r_busy_shreg == 2'b10; //下降沿检查
// 转换完成 end
// 读取数据 start
reg [3:0] r_cs_setup_cnt ;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_cs_setup_cnt <= 'd0;
else if(r_cstate == S_CS_SETUP)
r_cs_setup_cnt <= r_cs_setup_cnt + 1;
else
r_cs_setup_cnt <= 'd0;
end
reg [3:0] r_rd_setup_cnt ;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_rd_setup_cnt <= 'd0;
else if(r_cstate == S_RD_SETUP)
r_rd_setup_cnt <= r_rd_setup_cnt + 1;
else
r_rd_setup_cnt <= 'd0;
end
reg [3:0] r_setupa_cnt;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_setupa_cnt <= 'd0;
else if(r_cstate == S_SETUP_CHA)
r_setupa_cnt <= r_setupa_cnt + 1;
else
r_setupa_cnt <= 'd0;
end
reg [3:0] r_douta_cnt ;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_douta_cnt <= 'd0;
else if(r_cstate == S_DOUT_CHA)
r_douta_cnt <= r_douta_cnt + 1;
else
r_douta_cnt <= 'd0;
end
reg [3:0] r_rd_high_cnt;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_rd_high_cnt <= 'd0;
else if(r_cstate == S_RD_HIGH)
r_rd_high_cnt <= r_rd_high_cnt + 1;
else
r_rd_high_cnt <= 'd0;
end
reg [3:0] r_setupb_cnt;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_setupb_cnt <= 'd0;
else if(r_cstate == S_SETUP_CHB)
r_setupb_cnt <= r_setupb_cnt + 1;
else
r_setupb_cnt <= 'd0;
end
reg [3:0] r_doutb_cnt ;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_doutb_cnt <= 'd0;
else if(r_cstate == S_DOUT_CHB)
r_doutb_cnt <= r_doutb_cnt + 1;
else
r_doutb_cnt <= 'd0;
end
reg [3:0] r_rd_hold_cnt;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_rd_hold_cnt <= 'd0;
else if(r_cstate == S_RD_HOLD)
r_rd_hold_cnt <= r_rd_hold_cnt + 1;
else
r_rd_hold_cnt <= 'd0;
end
reg [3:0] r_quiet_cnt ;
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_quiet_cnt <= 'd0;
else if(r_cstate == S_QUIET)
r_quiet_cnt <= r_quiet_cnt + 1;
else
r_quiet_cnt <= 'd0;
end
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
o_cs <= 'd1;
else if(r_cstate == S_CS_SETUP & r_nstate == S_RD_SETUP)
o_cs <= 'd0;
else if(r_cstate == S_RD_HOLD & r_nstate == S_QUIET)
o_cs <= 'd1;
else
o_cs <= o_cs;
end
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
o_rd <= 'd1;
else if(r_cstate == S_RD_SETUP & r_nstate == S_SETUP_CHA)
o_rd <= 'd0;
else if(r_cstate == S_DOUT_CHA & r_nstate == S_RD_HIGH)
o_rd <= 'd1;
else if(r_cstate == S_RD_HIGH & r_nstate == S_SETUP_CHB)
o_rd <= 'd0;
else if(r_cstate == S_DOUT_CHB & r_nstate == S_RD_HOLD)
o_rd <= 'd1;
else
o_rd <= o_rd;
end
task CHA_DOUT;
input [15:0] cha_0;
input [15:0] cha_1;
input [15:0] cha_2;
input [15:0] cha_3;
input [15:0] cha_4;
input [15:0] cha_5;
input [15:0] cha_6;
input [15:0] cha_7;
begin
o_cha_dout0 <= cha_0;
o_cha_dout1 <= cha_1;
o_cha_dout2 <= cha_2;
o_cha_dout3 <= cha_3;
o_cha_dout4 <= cha_4;
o_cha_dout5 <= cha_5;
o_cha_dout6 <= cha_6;
o_cha_dout7 <= cha_7;
end
endtask
task CHB_DOUT;
input [15:0] chb_0;
input [15:0] chb_1;
input [15:0] chb_2;
input [15:0] chb_3;
input [15:0] chb_4;
input [15:0] chb_5;
input [15:0] chb_6;
input [15:0] chb_7;
begin
o_chb_dout0 <= chb_0;
o_chb_dout1 <= chb_1;
o_chb_dout2 <= chb_2;
o_chb_dout3 <= chb_3;
o_chb_dout4 <= chb_4;
o_chb_dout5 <= chb_5;
o_chb_dout6 <= chb_6;
o_chb_dout7 <= chb_7;
end
endtask
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
CHA_DOUT('d0,'d0,'d0,'d0,'d0,'d0,'d0,'d0);
else if(r_nstate == S_DOUT_CHA & r_cstate == S_SETUP_CHA)
case(o_chsel)
3'b000: CHA_DOUT(o_cha_dout0,o_cha_dout1,o_cha_dout2,o_cha_dout3,o_cha_dout4,o_cha_dout5,o_cha_dout6,i_ch_din);
3'b001: CHA_DOUT(i_ch_din,o_cha_dout1,o_cha_dout2,o_cha_dout3,o_cha_dout4,o_cha_dout5,o_cha_dout6,o_cha_dout7);
3'b010: CHA_DOUT(o_cha_dout0,i_ch_din,o_cha_dout2,o_cha_dout3,o_cha_dout4,o_cha_dout5,o_cha_dout6,o_cha_dout7);
3'b011: CHA_DOUT(o_cha_dout0,o_cha_dout1,i_ch_din,o_cha_dout3,o_cha_dout4,o_cha_dout5,o_cha_dout6,o_cha_dout7);
3'b100: CHA_DOUT(o_cha_dout0,o_cha_dout1,o_cha_dout2,i_ch_din,o_cha_dout4,o_cha_dout5,o_cha_dout6,o_cha_dout7);
3'b101: CHA_DOUT(o_cha_dout0,o_cha_dout1,o_cha_dout2,o_cha_dout3,i_ch_din,o_cha_dout5,o_cha_dout6,o_cha_dout7);
3'b110: CHA_DOUT(o_cha_dout0,o_cha_dout1,o_cha_dout2,o_cha_dout3,o_cha_dout4,i_ch_din,o_cha_dout6,o_cha_dout7);
3'b111: CHA_DOUT(o_cha_dout0,o_cha_dout1,o_cha_dout2,o_cha_dout3,o_cha_dout4,o_cha_dout5,i_ch_din,o_cha_dout7);
default: CHA_DOUT(o_cha_dout0,o_cha_dout1,o_cha_dout2,o_cha_dout3,o_cha_dout4,o_cha_dout5,o_cha_dout6,o_cha_dout7);
endcase
else
CHA_DOUT(o_cha_dout0,o_cha_dout1,o_cha_dout2,o_cha_dout3,o_cha_dout4,o_cha_dout5,o_cha_dout6,o_cha_dout7);
end
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
o_cha_vld <= 'd0;
else if(r_nstate == S_DOUT_CHA & r_cstate == S_SETUP_CHA)
o_cha_vld <= 'd1;
else
o_cha_vld <= 'd0;
end
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
CHB_DOUT('d0,'d0,'d0,'d0,'d0,'d0,'d0,'d0);
else if(r_nstate == S_DOUT_CHB & r_cstate == S_SETUP_CHB)
case(o_chsel)
3'b000: CHB_DOUT(o_chb_dout0,o_chb_dout1,o_chb_dout2,o_chb_dout3,o_chb_dout4,o_chb_dout5,o_chb_dout6,i_ch_din);
3'b001: CHB_DOUT(i_ch_din,o_chb_dout1,o_chb_dout2,o_chb_dout3,o_chb_dout4,o_chb_dout5,o_chb_dout6,o_chb_dout7);
3'b010: CHB_DOUT(o_chb_dout0,i_ch_din,o_chb_dout2,o_chb_dout3,o_chb_dout4,o_chb_dout5,o_chb_dout6,o_chb_dout7);
3'b011: CHB_DOUT(o_chb_dout0,o_chb_dout1,i_ch_din,o_chb_dout3,o_chb_dout4,o_chb_dout5,o_chb_dout6,o_chb_dout7);
3'b100: CHB_DOUT(o_chb_dout0,o_chb_dout1,o_chb_dout2,i_ch_din,o_chb_dout4,o_chb_dout5,o_chb_dout6,o_chb_dout7);
3'b101: CHB_DOUT(o_chb_dout0,o_chb_dout1,o_chb_dout2,o_chb_dout3,i_ch_din,o_chb_dout5,o_chb_dout6,o_chb_dout7);
3'b110: CHB_DOUT(o_chb_dout0,o_chb_dout1,o_chb_dout2,o_chb_dout3,o_chb_dout4,i_ch_din,o_chb_dout6,o_chb_dout7);
3'b111: CHB_DOUT(o_chb_dout0,o_chb_dout1,o_chb_dout2,o_chb_dout3,o_chb_dout4,o_chb_dout5,i_ch_din,o_chb_dout7);
default: CHB_DOUT(o_chb_dout0,o_chb_dout1,o_chb_dout2,o_chb_dout3,o_chb_dout4,o_chb_dout5,o_chb_dout6,o_chb_dout7);
endcase
else
CHB_DOUT(o_chb_dout0,o_chb_dout1,o_chb_dout2,o_chb_dout3,o_chb_dout4,o_chb_dout5,o_chb_dout6,o_chb_dout7);
end
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
o_chb_vld <= 'd0;
else if(r_nstate == S_DOUT_CHB & r_cstate == S_SETUP_CHB)
o_chb_vld <= 'd1;
else
o_chb_vld <= 'd0;
end
// 读取数据 end
always@(posedge i_clk or posedge i_rst) begin
if(i_rst)
r_cstate <= S_IDLE;
else if(i_en)
r_cstate <= r_nstate;
else
r_cstate <= S_IDLE;
end
always@(*) begin
case(r_cstate)
S_IDLE : r_nstate = i_en ? S_RESET : S_IDLE;
S_RESET : r_nstate = r_rst_cnt >= (TIME_RESET_H + TIME_RESET_L) / CLK_PERIOD ? S_CHSEL : S_RESET;
S_CHSEL : r_nstate = r_chsel_cnt >= TIME_CH_SETUP / CLK_PERIOD ? S_CONVST : S_CHSEL;
S_CONVST : r_nstate = r_cvst_cnt >= TIME_CONVST_H / CLK_PERIOD ? S_BUSY : S_CONVST;
S_BUSY : r_nstate = w_busy_nedge ? S_CS_SETUP : S_BUSY;
S_CS_SETUP : r_nstate = r_cs_setup_cnt >= TIME_CS_SETUP / CLK_PERIOD ? S_RD_SETUP : S_CS_SETUP;
S_RD_SETUP : r_nstate = r_rd_setup_cnt >= TIME_RD_SETUP / CLK_PERIOD ? S_SETUP_CHA : S_RD_SETUP;
S_SETUP_CHA : r_nstate = r_setupa_cnt >= TIME_DOUT_SETUP / CLK_PERIOD ? S_DOUT_CHA : S_SETUP_CHA;
S_DOUT_CHA : r_nstate = r_douta_cnt >= (TIME_RD_LOW - TIME_DOUT_SETUP) / CLK_PERIOD ? S_RD_HIGH : S_DOUT_CHA;
S_RD_HIGH : r_nstate = r_rd_high_cnt >= TIME_RD_HIGH / CLK_PERIOD ? S_SETUP_CHB : S_RD_HIGH;
S_SETUP_CHB : r_nstate = r_setupb_cnt >= TIME_DOUT_SETUP / CLK_PERIOD ? S_DOUT_CHB : S_SETUP_CHB;
S_DOUT_CHB : r_nstate = r_doutb_cnt >= (TIME_RD_LOW - TIME_DOUT_SETUP) / CLK_PERIOD ? S_RD_HOLD : S_DOUT_CHB;
S_RD_HOLD : r_nstate = r_rd_hold_cnt >= TIME_RD_HOLD / CLK_PERIOD ? S_QUIET : S_RD_HOLD;
S_QUIET : r_nstate = r_quiet_cnt >= TIME_QUIET / CLK_PERIOD ? S_CHSEL : S_QUIET;
default: r_nstate = S_IDLE;
endcase
end
ila_2 your_instance_name (
.clk(i_clk), // input wire clk
.probe0(o_cha_dout0), // input wire [15:0] probe0
.probe1(o_cha_dout1), // input wire [15:0] probe1
.probe2(o_cha_dout2), // input wire [15:0] probe2
.probe3(o_cha_dout3), // input wire [15:0] probe3
.probe4(o_cha_dout4), // input wire [15:0] probe4
.probe5(o_cha_dout5), // input wire [15:0] probe5
.probe6(o_cha_dout6), // input wire [15:0] probe6
.probe7(o_cha_dout7), // input wire [15:0] probe7
.probe8(o_chb_dout0), // input wire [15:0] probe8
.probe9(o_chb_dout1), // input wire [15:0] probe9
.probe10(o_chb_dout2), // input wire [15:0] probe10
.probe11(o_chb_dout3), // input wire [15:0] probe11
.probe12(o_chb_dout4), // input wire [15:0] probe12
.probe13(o_chb_dout5), // input wire [15:0] probe13
.probe14(o_chb_dout6), // input wire [15:0] probe14
.probe15(o_chb_dout7), // input wire [15:0] probe15
.probe16(o_convst), // input wire [0:0] probe16
.probe17(o_cs), // input wire [0:0] probe17
.probe18(o_rd), // input wire [0:0] probe18
.probe19(i_busy) // input wire [0:0] probe19
);
endmodule
讲解视频：
【FPGA AD7616驱动编写】https://www.bilibili.com/video/BV1LDWyz8EnX?vd_source=2a95e4ac8a0ef48f2fbe2990bba31cec
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