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timecode 添加频率探测功能

master
zhaohe 1 year ago
parent
87e676ebb6
commit
5415715ff7
4 changed files with 132 additions and 352 deletions
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  1. 22
      led_test.pds
  2. 152
      source/bak/internal_timecode_generator.v
  3. 163
      source/src/input/timecode_input.v
  4. 147
      source/src/zutils/zutils_timecode_serial_data_gen.v

22
led_test.pds
View File

@ -1,5 +1,5 @@
(_flow fab_demo "2021.1-SP7"
(_comment "Generated by Fabric Compiler (version on 2021.1-SP7<build 86875>) at Sat Mar 23 17:15:21 2024")
(_comment "Generated by Fabric Compiler (version on 2021.1-SP7<build 86875>) at Sat Mar 23 19:29:12 2024")
(_version "1.0.5")
(_status "initial")
(_project
@ -123,7 +123,7 @@
)
(_file "source/src/timecode/timecode_generator.v"
(_format verilog)
(_timespec "2024-03-04T16:13:49")
(_timespec "2024-03-23T19:26:35")
)
(_file "source/src/output/timecode_output.v"
(_format verilog)
@ -131,11 +131,11 @@
)
(_file "source/src/input/timecode_input.v"
(_format verilog)
(_timespec "2024-03-04T20:17:07")
(_timespec "2024-03-23T19:14:39")
)
(_file "source/src/timecode/timecode_decoder.v"
(_format verilog)
(_timespec "2024-02-27T20:28:55")
(_timespec "2024-03-23T18:54:04")
)
(_file "source/src/timecode/timecode_sample_sig_generator.v"
(_format verilog)
@ -315,17 +315,17 @@
(_db_output
(_file "compile/Top_comp.adf"
(_format adif)
(_timespec "2024-03-23T17:12:28")
(_timespec "2024-03-23T19:28:26")
)
)
(_output
(_file "compile/Top.cmr"
(_format verilog)
(_timespec "2024-03-23T17:12:25")
(_timespec "2024-03-23T19:28:24")
)
(_file "compile/cmr.db"
(_format text)
(_timespec "2024-03-23T17:12:28")
(_timespec "2024-03-23T19:28:26")
)
)
)
@ -341,21 +341,21 @@
(_db_output
(_file "synthesize/Top_syn.adf"
(_format adif)
(_timespec "2024-03-23T17:14:59")
(_timespec "2024-03-23T19:29:07")
)
)
(_output
(_file "synthesize/Top_syn.vm"
(_format structural_verilog)
(_timespec "2024-03-23T17:15:11")
(_timespec "2024-03-23T19:29:10")
)
(_file "synthesize/Top.snr"
(_format text)
(_timespec "2024-03-23T17:15:20")
(_timespec "2024-03-23T19:29:12")
)
(_file "synthesize/snr.db"
(_format text)
(_timespec "2024-03-23T17:15:21")
(_timespec "2024-03-23T19:29:12")
)
)
)

152
source/bak/internal_timecode_generator.v
View File

@ -1,152 +0,0 @@
// module internal_timecode_generator #(
// parameter SYS_CLOCK_FREQ = 10000000
// ) (
// input clk, //clock input
// input rst_n, //asynchronous reset input, low active
// input ctrl_sig,
// input [31:0] timecode_format,
// input timecode_tc_wr_en,
// input [31:0] timecode_tc_wr_data,
// output reg [31:0] out_timecode_uc_reg,
// input timecode_uc_wr_en,
// input [31:0] timecode_uc_wr_data,
// output reg [31:0] out_timecode_tc_reg,
// output reg out_timecode_tirgger_sig
// );
// localparam FPS2398Format = 0;
// localparam FPS2400Format = 1;
// localparam FPS2500Format = 2;
// localparam FPS2997Format = 3;
// localparam FPS2997DropFormat = 4;
// localparam FPS3000Format = 5;
// /*******************************************************************************
// * smpte_timecode_clk_generator *
// *******************************************************************************/
// wire timecode_sig_clk_output;
// zutils_smpte_timecode_clk_generator #(
// .SYS_CLOCK_FREQ(SYS_CLOCK_FREQ)
// ) smpte_timecode_clk_generator (
// .clk(clk),
// .rst_n(rst_n),
// .ctrl_sig(ctrl_sig),
// .fps2398format_clk(fps2398format_clk),
// .fps2400format_clk(fps2400format_clk),
// .fps2500format_clk(fps2500format_clk),
// .fps2997format_clk(fps2997format_clk),
// .fps2997dropformat_clk(fps2997dropformat_clk),
// .fps3000format_clk(fps3000format_clk)
// );
// zutils_multiplexer_32t1_v2 timecode_clk_output_mult (
// .chooseindex(timecode_format),
// //in
// .in0(fps2398format_clk),
// .in1(fps2400format_clk),
// .in2(fps2500format_clk),
// .in3(fps2997format_clk),
// .in4(fps2997dropformat_clk),
// .in5(fps3000format_clk),
// //out
// .out(timecode_sig_clk_output)
// );
// zutils_edge_detecter timecode_sig_clk_output_edge_detecter (
// .clk(clk),
// .rst_n(rst_n),
// .in_signal(timecode_sig_clk_output),
// .in_signal_rising_edge(timecode_sig_clk_output_rising_edge)
// );
// reg [7:0] frameNum;
// reg timecode_drop_frame;
// wire [31:0] timecode_next;
// always @(*) begin
// case (timecode_format)
// FPS2398Format: begin
// frameNum <= 24;
// timecode_drop_frame <= 0;
// end
// FPS2400Format: begin
// frameNum <= 24;
// timecode_drop_frame <= 0;
// end
// FPS2500Format: begin
// frameNum <= 25;
// timecode_drop_frame <= 0;
// end
// FPS2997Format: begin
// frameNum <= 30;
// timecode_drop_frame <= 0;
// end
// FPS2997DropFormat: begin
// frameNum <= 30;
// timecode_drop_frame <= 0;
// end
// default begin
// frameNum <= 30;
// timecode_drop_frame <= 0;
// end
// endcase
// end
// ztutils_timecode_next_code ztutils_timecode_next_code_inst (
// .timecode(out_timecode_tc_reg),
// .frameNum(frameNum),
// .drop(timecode_drop_frame),
// .timecode_next(timecode_next)
// );
// reg n_first_timecode_sig;
// always @(posedge clk or negedge rst_n) begin
// if (!rst_n || !ctrl_sig) begin
// n_first_timecode_sig <= 0;
// end else begin
// if (!n_first_timecode_sig && timecode_sig_clk_output_rising_edge) begin
// n_first_timecode_sig <= 1;
// end
// end
// end
// // always @(posedge clk or negedge rst_n) begin
// // if (!rst_n) begin
// // out_timecode_tc_reg <= 0;
// // out_timecode_uc_reg <= 0;
// // end else begin
// // if (timecode_tc_wr_en) begin
// // //外都写入时间码
// // out_timecode_tc_reg <= timecode_tc_wr_data;
// // end else if (timecode_uc_wr_en) begin
// // //外都写入时间码-用户码
// // out_timecode_uc_reg <= timecode_uc_wr_data;
// // end else begin
// // if (timecode_sig_clk_output_rising_edge) begin
// // //第一次触发，不改变时间码
// // if (!n_first_timecode_sig) begin
// // out_timecode_tc_reg <= out_timecode_tc_reg;
// // end else begin
// // out_timecode_tc_reg <= timecode_next;
// // end
// // out_timecode_tirgger_sig <= 1;
// // end else begin
// // out_timecode_tirgger_sig <= 0;
// // end
// // end
// // end
// // end
// endmodule

163
source/src/input/timecode_input.v
View File

@ -17,10 +17,10 @@ module timecode_input_parser #(
/*******************************************************************************
* TIMECODE输出 *
*******************************************************************************/
output timecode_tigger_sig,
output [31:0] timecode_format,
output [63:0] timecode_data,
output timecode_serial_data,
output reg timecode_tigger_sig,
output reg [31:0] timecode_format,
output reg [63:0] timecode_data,
output reg timecode_serial_data,
/*******************************************************************************
* 指示灯状态输出 *
@ -32,38 +32,54 @@ module timecode_input_parser #(
reg [31:0] r1_timecode_sig_selt; //信号源选择 0:off,1:bnc,2:headphone
reg [31:0] r2_timecode_format; //
reg [31:0] r3_timecode0; //
reg [31:0] r4_timecode1; //
reg [31:0] r2_ch1_timecode_format; //
reg [31:0] r3_ch1_timecode0; //
reg [31:0] r4_ch1_timecode1; //
wire [31:0] r5_ch1_freq; //
reg [31:0] r6_ch2_timecode_format; //
reg [31:0] r7_ch2_timecode0; //
reg [31:0] r8_ch2_timecode1; //
wire [31:0] r9_ch2_freq; //
reg [31:0] rA_freq_bias; //
wire [31:0] reg_wr_index;
zutils_register_advanced #(
.REG_START_ADD(REG_START_ADD)
) _register (
.clk(clk),
.rst_n(rst_n),
.addr(addr),
.clk (clk),
.rst_n (rst_n),
.addr (addr),
.wr_data(wr_data),
.wr_en(wr_en),
.wr_en (wr_en),
.rd_data(rd_data),
.reg1(r1_timecode_sig_selt),
.reg2(r2_timecode_format),
.reg3(r3_timecode0),
.reg4(r4_timecode1),
.reg1 (r1_timecode_sig_selt),
.reg2 (r2_ch1_timecode_format),
.reg3 (r3_ch1_timecode0),
.reg4 (r4_ch1_timecode1),
.reg5 (r5_ch1_freq),
.reg6 (r6_ch2_timecode_format),
.reg7 (r7_ch2_timecode0),
.reg8 (r8_ch2_timecode1),
.reg9 (r9_ch2_freq),
.regA (rA_freq_bias),
.reg_wr_sig(reg_wr_sig),
.reg_index (reg_wr_index)
);
always @(posedge clk or negedge rst_n) begin
if (!rst_n) begin
r1_timecode_sig_selt <= 1;
r2_timecode_format <= 0;
r1_timecode_sig_selt <= 1;
r2_ch1_timecode_format <= 0;
r6_ch2_timecode_format <= 0;
end else begin
if (reg_wr_sig) begin
case (reg_wr_index)
31'h1: r1_timecode_sig_selt <= wr_data;
31'h2: r2_timecode_format <= wr_data;
31'h2: r2_ch1_timecode_format <= wr_data;
31'h6: r6_ch2_timecode_format <= wr_data;
31'hA: rA_freq_bias <= wr_data;
default: begin
end
endcase
@ -71,43 +87,106 @@ module timecode_input_parser #(
end
end
wire timecode_in_af_selt;
zutils_multiplexer_4t1 _signal_select (
.chooseindex(r1_timecode_sig_selt),
.signal0(1'b0),
.signal1(timecode_bnc_in),
.signal2(timecode_headphone_in),
.signalout(timecode_in_af_selt)
wire ch1_timecode_tigger_sig;
wire [31:0] ch1_timecode_format;
wire [63:0] ch1_timecode_data;
wire ch1_timecode_serial_data;
wire ch2_timecode_tigger_sig;
wire [31:0] ch2_timecode_format;
wire [63:0] ch2_timecode_data;
wire ch2_timecode_serial_data;
timecode_decoder #(
.SYS_CLOCK_FREQ(SYS_CLOCK_FREQ)
) timecode_decoder_1 (
.clk (clk),
.rst_n (rst_n),
.timecode_in (timecode_bnc_in), // 时码输入
.timecode_tigger_sig (ch1_timecode_tigger_sig), //
.timecode_data (ch1_timecode_data), //[63:0]
.timecode_serial_data(ch1_timecode_serial_data) //
);
zutils_freq_detector_v2 freq_detector1 (
.clk (clk),
.rst_n (rst_n),
.freq_detect_bias(rA_freq_bias),
.pluse_input (ch1_timecode_tigger_sig),
.pluse_width_cnt (r5_ch1_freq)
);
timecode_decoder #(
.SYS_CLOCK_FREQ(10000000)
) timecode_decoder_ins (
.clk(clk),
.rst_n(rst_n),
.timecode_in(timecode_in_af_selt), // 时码输入
.timecode_tigger_sig(timecode_tigger_sig), //
.timecode_data(timecode_data), //[63:0]
.timecode_serial_data(timecode_serial_data) //
.SYS_CLOCK_FREQ(SYS_CLOCK_FREQ)
) timecode_decoder_2 (
.clk (clk),
.rst_n (rst_n),
.timecode_in (timecode_headphone_in), // 时码输入
.timecode_tigger_sig (ch2_timecode_tigger_sig), //
.timecode_data (ch2_timecode_data), //[63:0]
.timecode_serial_data(ch2_timecode_serial_data) //
);
zutils_freq_detector_v2 freq_detector2 (
.clk (clk),
.rst_n (rst_n),
.freq_detect_bias(rA_freq_bias),
.pluse_input (ch2_timecode_tigger_sig),
.pluse_width_cnt (r9_ch2_freq)
);
always @(posedge clk or negedge rst_n) begin
if (!rst_n) begin
r3_timecode0 <= 0;
r4_timecode1 <= 0;
r3_ch1_timecode0 <= 0;
r4_ch1_timecode1 <= 0;
r7_ch2_timecode0 <= 0;
r8_ch2_timecode1 <= 0;
end else begin
if (timecode_tigger_sig) begin
r3_timecode0 <= timecode_data[31:0];
r4_timecode1 <= timecode_data[63:32];
if (ch1_timecode_tigger_sig) begin
r3_ch1_timecode0 <= ch1_timecode_data[31:0];
r4_ch1_timecode1 <= ch1_timecode_data[63:32];
end
if (ch2_timecode_tigger_sig) begin
r7_ch2_timecode0 <= ch2_timecode_data[31:0];
r8_ch2_timecode1 <= ch2_timecode_data[63:32];
end
end
end
assign timecode_format = r2_timecode_format;
assign timecode_headphone_in_state_led = 1;
assign timecode_bnc_in_state_led = 1;
always @(posedge clk or negedge rst_n) begin
if (!rst_n) begin
timecode_tigger_sig <= 0;
timecode_format <= 32'hF;
timecode_data <= 0;
timecode_serial_data <= 0;
end else begin
case (r1_timecode_sig_selt)
1: begin
timecode_tigger_sig <= ch1_timecode_tigger_sig;
timecode_format <= r2_ch1_timecode_format;
timecode_data <= ch1_timecode_data;
timecode_serial_data <= ch1_timecode_serial_data;
end
2: begin
timecode_tigger_sig <= ch2_timecode_tigger_sig;
timecode_format <= r6_ch2_timecode_format;
timecode_data <= ch2_timecode_data;
timecode_serial_data <= ch2_timecode_serial_data;
end
default: begin
timecode_tigger_sig <= 0;
timecode_format <= 32'hF;
timecode_data <= 0;
timecode_serial_data <= 0;
end
endcase
end
end
assign timecode_headphone_in_state_led = 1;
assign timecode_bnc_in_state_led = 1;
endmodule

147
source/src/zutils/zutils_timecode_serial_data_gen.v
View File

@ -1,147 +0,0 @@
// module internal_timecode_generator #(
// parameter SYS_CLOCK_FREQ = 10000000
// ) (
// input clk, //clock input
// input rst_n, //asynchronous reset input, low active
// input [31:0] timecode_format,
// input trigger_sig,
// input [31:0] timecode_tc_data,
// input [31:0] timecode_uc_data,
// output reg out_timecode_serial_data,
// output reg out_trigger_sig,
// output reg [31:0] out_timecode_tc_data,
// output reg [31:0] out_timecode_uc_data
// );
// // Rate 1/2Fe 1Fe
// // 23.98 F/s 260.7 us 521.4 us
// // 24.00 F/s 260.4 us 520.8 us
// // 25.00 F/s 250.0 us 500.0 us
// // 29.97 F/s 208.5 us 417.1 us
// // 30.00 F/s 208.3 us 416.7 us
// localparam FPS2398Format = 0;
// localparam FPS2400Format = 1;
// localparam FPS2500Format = 2;
// localparam FPS2997Format = 3;
// localparam FPS2997DropFormat = 4;
// localparam FPS3000Format = 5;
// localparam FPS2398FormatOneHalfFe = (260.7 * 1000) / (1000000000 / SYS_CLOCK_FREQ);
// localparam FPS2400FormatOneHalfFe = (260.4 * 1000) / (1000000000 / SYS_CLOCK_FREQ);
// localparam FPS2500FormatOneHalfFe = (250.0 * 1000) / (1000000000 / SYS_CLOCK_FREQ);
// localparam FPS2997FormatOneHalfFe = (208.5 * 1000) / (1000000000 / SYS_CLOCK_FREQ);
// localparam FPS2997DropFormatOneHalfFe = (208.5 * 1000) / (1000000000 / SYS_CLOCK_FREQ);
// localparam FPS3000FormatOneHalfFe = (208.3 * 1000) / (1000000000 / SYS_CLOCK_FREQ);
// reg [31:0] timecode_onehalf_bit_count;
// always @(*) begin
// case (freqtimecode_format)
// FPS2398Format: timecode_onehalf_bit_count = FPS2398FormatOneHalfFe;
// FPS2400Format: timecode_onehalf_bit_count = FPS2400FormatOneHalfFe;
// FPS2500Format: timecode_onehalf_bit_count = FPS2500FormatOneHalfFe;
// FPS2997Format: timecode_onehalf_bit_count = FPS2997FormatOneHalfFe;
// FPS2997DropFormat: timecode_onehalf_bit_count = FPS2997DropFormatOneHalfFe;
// FPS3000Format: timecode_onehalf_bit_count = FPS3000FormatOneHalfFe;
// default: timecode_onehalf_bit_count = FPS2398FormatOneHalfFe;
// endcase
// end
// /*******************************************************************************
// * workflag *
// *******************************************************************************/
// reg workflag;
// reg endsig;
// //
// //
// reg [31:0] timecode_tc_cache;
// reg [31:0] timecode_uc_cache;
// reg [64:0] timecode_bit_val;
// always @(posedge clk or negedge rst_n) begin
// if (!rst_n) begin
// workflag <= 0;
// timecode_tc_cache <= 0;
// timecode_uc_cache <= 0;
// end else begin
// if (trigger_sig) begin
// timecode_tc_cache <= timecode_tc_data;
// timecode_uc_cache <= timecode_uc_data;
// workflag <= 1;
// end else if (workflag && endsig) begin
// workflag <= 0;
// end
// end
// end
// /*******************************************************************************
// * tigger_sig *
// *******************************************************************************/
// reg [31:0] halfbitcount;
// reg tigger_sig;
// always @(posedge clk or negedge rst_n) begin
// if (!rst_n || !workflag) begin
// halfbitcount <= 0;
// tigger_sig <= 0;
// end else begin
// if (halfbitcount == timecode_onehalf_bit_count) begin
// halfbitcount <= 0;
// end else begin
// halfbitcount <= halfbitcount + 1;
// end
// if (halfbitcount == 0) begin
// tigger_sig <= 1;
// end else begin
// tigger_sig <= 0;
// end
// end
// end
// //
// // trigger : | | | | | |
// // onebitoff: 0000000001111111111000000001111111110000000001
// // bitoff : 0000000000000000000111111111111111112222222222
// //
// //
// reg [ 1:0] onebitoff;
// reg [31:0] bitoff;
// always @(posedge clk or negedge rst_n) begin
// if (!rst_n || !workflag) begin
// onebitoff <= 1;
// bitoff <= 0;
// end else begin
// if (tigger_sig) begin
// if (onebit_off == 1) begin
// bitoff <= bitoff + 1;
// onebit_off <= 0;
// end else begin
// onebit_off <= 1;
// end
// end
// end
// end
// reg change_sig;
// endmodule
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