diff options
Diffstat (limited to 'timing/time_sender.v')
-rw-r--r-- | timing/time_sender.v | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/timing/time_sender.v b/timing/time_sender.v deleted file mode 100644 index aa2fcbbdb..000000000 --- a/timing/time_sender.v +++ /dev/null @@ -1,110 +0,0 @@ - - -module time_sender - (input clk, input rst, - input [31:0] master_time, - input send_sync, - output exp_pps_out); - - reg [7:0] datain; - reg k; - wire [9:0] dataout; - reg [9:0] dataout_reg; - reg disp_reg; - wire disp, new_word; - - encode_8b10b encode_8b10b - (.datain({k,datain}),.dispin(disp_reg), - .dataout(dataout),.dispout(disp)); - - assign exp_pps_out = dataout_reg[0]; - - always @(posedge clk) - if(rst) - disp_reg <= 0; - else if(new_word) - disp_reg <= disp; - - always @(posedge clk) - if(rst) - dataout_reg <= 0; - else if(new_word) - dataout_reg <= dataout; - else - dataout_reg <= {1'b0,dataout_reg[9:1]}; - - reg [4:0] state; - reg [3:0] bit_count; - - assign new_word = (bit_count == 9); - - always @(posedge clk) - if(rst) - bit_count <= 0; - else if(new_word | send_sync) - bit_count <= 0; - else - bit_count <= bit_count + 1; - - localparam SEND_IDLE = 0; - localparam SEND_HEAD = 1; - localparam SEND_T0 = 2; - localparam SEND_T1 = 3; - localparam SEND_T2 = 4; - localparam SEND_T3 = 5; - - localparam COMMA = 8'hBC; - localparam HEAD = 8'h3C; - - reg [31:0] master_time_reg; - - always @(posedge clk) - if(rst) - master_time_reg <= 0; - else if(send_sync) - master_time_reg <= master_time; - - always @(posedge clk) - if(rst) - begin - {k,datain} <= 0; - state <= SEND_IDLE; - end - else - if(send_sync) - state <= SEND_HEAD; - else if(new_word) - case(state) - SEND_IDLE : - {k,datain} <= {1'b1,COMMA}; - SEND_HEAD : - begin - {k,datain} <= {1'b1, HEAD}; - state <= SEND_T0; - end - SEND_T0 : - begin - {k,datain} <= {1'b0, master_time_reg[31:24] }; - state <= SEND_T1; - end - SEND_T1 : - begin - {k,datain} <= {1'b0, master_time_reg[23:16]}; - state <= SEND_T2; - end - SEND_T2 : - begin - {k,datain} <= {1'b0, master_time_reg[15:8]}; - state <= SEND_T3; - end - SEND_T3 : - begin - {k,datain} <= {1'b0, master_time_reg[7:0]}; - state <= SEND_IDLE; - end - default : - state <= SEND_IDLE; - endcase // case(state) - - -endmodule // time_sender |