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ad_ip_jesd204_tpl_adc: make PN monitor more generic

main
Laszlo Nagy 2018-10-10 15:10:54 +01:00 committed by Laszlo Nagy
parent c34a304d3c
commit 41413a8ffe
1 changed files with 21 additions and 6 deletions
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27
library/jesd204/ad_ip_jesd204_tpl_adc/ad_ip_jesd204_tpl_adc_pnmon.v
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@ -43,12 +43,16 @@ module ad_ip_jesd204_tpl_adc_pnmon #(
localparam DW = DATA_PATH_WIDTH*CHANNEL_WIDTH-1;
// Max width of largest PN and data width
localparam PN_W = DW > 22 ? DW : 22;
// internal registers
reg [DW:0] pn_data_pn = 'd0;
reg [PN_W:0] pn_data_pn = 'd0;
// internal signals
wire [DW:0] pn_data_pn_s;
wire [PN_W:0] pn_data_pn_s;
wire [DW:0] pn_data_in_s;
wire [PN_W:0] pn_data_init;
wire [DW:0] pn23;
wire [DW+23:0] full_state_pn23;
@ -56,8 +60,18 @@ module ad_ip_jesd204_tpl_adc_pnmon #(
wire [DW+9:0] full_state_pn9;
// pn sequence select
generate if (PN_W > DW) begin
reg [PN_W-DW-1:0] pn_data_in_d = 'd0;
always @(posedge clk) begin
pn_data_in_d <= pn_data_in_s[PN_W-DW-1:0];
end
assign pn_data_init = {pn_data_in_d, pn_data_in_s};
end else begin
assign pn_data_init = pn_data_in_s;
end
endgenerate
assign pn_data_pn_s = (pn_oos == 1'b1) ? pn_data_in_s : pn_data_pn;
assign pn_data_pn_s = (pn_oos == 1'b1) ? pn_data_init : pn_data_pn;
wire tc = TWOS_COMPLEMENT ? 1'b1 : 1'b0;
@ -84,12 +98,13 @@ module ad_ip_jesd204_tpl_adc_pnmon #(
always @(posedge clk) begin
if (pn_seq_sel == 4'd0) begin
pn_data_pn <= pn9;
pn_data_pn <= PN_W > DW ? {pn_data_pn[PN_W-DW-1:0],pn9} : pn9;
end else begin
pn_data_pn <= pn23;
pn_data_pn <= PN_W > DW ? {pn_data_pn[PN_W-DW-1:0],pn23} : pn23;
end
end
// pn oos & pn err
ad_pnmon #(
@ -98,7 +113,7 @@ module ad_ip_jesd204_tpl_adc_pnmon #(
.adc_clk (clk),
.adc_valid_in (1'b1),
.adc_data_in (pn_data_in_s),
.adc_data_pn (pn_data_pn),
.adc_data_pn (pn_data_pn[DW:0]),
.adc_pn_oos (pn_oos),
.adc_pn_err (pn_err)
);